Most visited

Recently visited

Results for

Class Index - Android SDK

These are the API classes. See all API packages.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

AbsListView	Base class that can be used to implement virtualized lists of items.
AbsListView.LayoutParams	AbsListView extends LayoutParams to provide a place to hold the view type.
AbsListView.MultiChoiceModeListener	A MultiChoiceModeListener receives events for `CHOICE_MODE_MULTIPLE_MODAL`.
AbsListView.OnScrollListener	Interface definition for a callback to be invoked when the list or grid has been scrolled.
AbsListView.RecyclerListener	A RecyclerListener is used to receive a notification whenever a View is placed inside the RecycleBin's scrap heap.
AbsListView.SelectionBoundsAdjuster	The top-level view of a list item can implement this interface to allow itself to modify the bounds of the selection shown for that item.
AbsoluteLayout	This class was deprecated in API level 3. Use `FrameLayout`, `RelativeLayout` or a custom layout instead.
AbsoluteLayout.LayoutParams	Per-child layout information associated with AbsoluteLayout.
AbsoluteSizeSpan
AbsSavedState	A `Parcelable` implementation that should be used by inheritance hierarchies to ensure the state of all classes along the chain is saved.
AbsSavedState	A `Parcelable` implementation that should be used by inheritance hierarchies to ensure the state of all classes along the chain is saved.
AbsSeekBar
AbsSpinner	An abstract base class for spinner widgets.
AbstractAccountAuthenticator	Abstract base class for creating AccountAuthenticators.
AbstractCollection<E>	This class provides a skeletal implementation of the `Collection` interface, to minimize the effort required to implement this interface.
AbstractCursor	This is an abstract cursor class that handles a lot of the common code that all cursors need to deal with and is provided for convenience reasons.
AbstractCursor.SelfContentObserver	Cursors use this class to track changes others make to their URI.
AbstractDetailsDescriptionPresenter	An abstract `Presenter` for rendering a detailed description of an item.
AbstractDetailsDescriptionPresenter.ViewHolder	The ViewHolder for the `AbstractDetailsDescriptionPresenter`.
AbstractExecutorService	Provides default implementations of `ExecutorService` execution methods.
AbstractInputMethodService	AbstractInputMethodService provides a abstract base class for input methods.
AbstractInputMethodService.AbstractInputMethodImpl	Base class for derived classes to implement their `InputMethod` interface.
AbstractInputMethodService.AbstractInputMethodSessionImpl	Base class for derived classes to implement their `InputMethodSession` interface.
AbstractInterruptibleChannel	Base implementation class for interruptible channels.
AbstractList<E>	This class provides a skeletal implementation of the `List` interface to minimize the effort required to implement this interface backed by a "random access" data store (such as an array).
AbstractMap<K, V>	This class provides a skeletal implementation of the `Map` interface, to minimize the effort required to implement this interface.
AbstractMap.SimpleEntry<K, V>	An Entry maintaining a key and a value.
AbstractMap.SimpleImmutableEntry<K, V>	An Entry maintaining an immutable key and value.
AbstractMediaItemPresenter	Abstract `Presenter` class for rendering media items in a playlist format.
AbstractMediaItemPresenter.ViewHolder	The ViewHolder for the `AbstractMediaItemPresenter`.
AbstractMediaListHeaderPresenter	Abstract presenter class for rendering the header for a list of media items in a playlist.
AbstractMediaListHeaderPresenter.ViewHolder	The ViewHolder for the `AbstractMediaListHeaderPresenter`.
AbstractMethodError	Thrown when an application tries to call an abstract method.
AbstractOwnableSynchronizer	A synchronizer that may be exclusively owned by a thread.
AbstractPreferences	This class provides a skeletal implementation of the `Preferences` class, greatly easing the task of implementing it.
AbstractQueue<E>	This class provides skeletal implementations of some `Queue` operations.
AbstractQueuedLongSynchronizer	A version of `AbstractQueuedSynchronizer` in which synchronization state is maintained as a `long`.
AbstractQueuedLongSynchronizer.ConditionObject	Condition implementation for a `AbstractQueuedLongSynchronizer` serving as the basis of a `Lock` implementation.
AbstractQueuedSynchronizer	Provides a framework for implementing blocking locks and related synchronizers (semaphores, events, etc) that rely on first-in-first-out (FIFO) wait queues.
AbstractQueuedSynchronizer.ConditionObject	Condition implementation for a `AbstractQueuedSynchronizer` serving as the basis of a `Lock` implementation.
AbstractSelectableChannel	Base implementation class for selectable channels.
AbstractSelectionKey	Base implementation class for selection keys.
AbstractSelector	Base implementation class for selectors.
AbstractSequentialList<E>	This class provides a skeletal implementation of the `List` interface to minimize the effort required to implement this interface backed by a "sequential access" data store (such as a linked list).
AbstractSet<E>	This class provides a skeletal implementation of the `Set` interface to minimize the effort required to implement this interface.
AbstractThreadedSyncAdapter	An abstract implementation of a SyncAdapter that spawns a thread to invoke a sync operation.
AbstractVerifier	This class was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
AbstractWindowedCursor	A base class for Cursors that store their data in `CursorWindow`s.
AccelerateDecelerateInterpolator	An interpolator where the rate of change starts and ends slowly but accelerates through the middle.
AccelerateInterpolator	An interpolator where the rate of change starts out slowly and and then accelerates.
AccessControlContext	Legacy security code; do not use.
AccessControlException	This exception is thrown by the AccessController to indicate that a requested access (to a critical system resource such as the file system or the network) is denied.
AccessController	Legacy security code; do not use.
AccessibilityDelegateCompat	Helper for accessing `View.AccessibilityDelegate` introduced after API level 4 in a backwards compatible fashion.
AccessibilityEvent	This class represents accessibility events that are sent by the system when something notable happens in the user interface.
AccessibilityEventCompat	Helper for accessing features in `AccessibilityEvent` introduced after API level 4 in a backwards compatible fashion.
AccessibilityEventSource	This interface is implemented by classes source of `AccessibilityEvent`s.
AccessibilityManager	System level service that serves as an event dispatch for `AccessibilityEvent`s, and provides facilities for querying the accessibility state of the system.
AccessibilityManager.AccessibilityStateChangeListener	Listener for the system accessibility state.
AccessibilityManager.TouchExplorationStateChangeListener	Listener for the system touch exploration state.
AccessibilityManagerCompat	Helper for accessing features in `AccessibilityManager` introduced after API level 4 in a backwards compatible fashion.
AccessibilityManagerCompat.AccessibilityStateChangeListenerCompat	Listener for the accessibility state.
AccessibilityNodeInfo	This class represents a node of the window content as well as actions that can be requested from its source.
AccessibilityNodeInfo.AccessibilityAction	A class defining an action that can be performed on an `AccessibilityNodeInfo`.
AccessibilityNodeInfo.CollectionInfo	Class with information if a node is a collection.
AccessibilityNodeInfo.CollectionItemInfo	Class with information if a node is a collection item.
AccessibilityNodeInfo.RangeInfo	Class with information if a node is a range.
AccessibilityNodeInfoCompat	Helper for accessing `AccessibilityNodeInfo` introduced after API level 4 in a backwards compatible fashion.
AccessibilityNodeInfoCompat.AccessibilityActionCompat
AccessibilityNodeInfoCompat.CollectionInfoCompat
AccessibilityNodeInfoCompat.CollectionItemInfoCompat
AccessibilityNodeInfoCompat.RangeInfoCompat
AccessibilityNodeProvider	This class is the contract a client should implement to enable support of a virtual view hierarchy rooted at a given view for accessibility purposes.
AccessibilityNodeProviderCompat	Helper for accessing `AccessibilityNodeProvider` introduced after API level 4 in a backwards compatible fashion.
AccessibilityRecord	Represents a record in an `AccessibilityEvent` and contains information about state change of its source `View`.
AccessibilityRecordCompat	Helper for accessing `AccessibilityRecord` introduced after API level 4 in a backwards compatible fashion.
AccessibilityService	Accessibility services are intended to assist users with disabilities in using Android devices and apps.
AccessibilityService.GestureResultCallback	Class used to report status of dispatched gestures
AccessibilityService.MagnificationController	Used to control and query the state of display magnification.
AccessibilityService.MagnificationController.OnMagnificationChangedListener	Listener for changes in the state of magnification.
AccessibilityService.SoftKeyboardController	Used to control and query the soft keyboard show mode.
AccessibilityService.SoftKeyboardController.OnShowModeChangedListener	Listener for changes in the soft keyboard show mode.
AccessibilityServiceInfo	This class describes an `AccessibilityService`.
AccessibilityServiceInfoCompat	Helper for accessing features in `AccessibilityService` introduced after API level 4 in a backwards compatible fashion.
AccessibilityWindowInfo	This class represents a state snapshot of a window for accessibility purposes.
AccessibilityWindowInfoCompat	Helper for accessing `AccessibilityWindowInfo` introduced after API level 4 in a backwards compatible fashion.
AccessibleObject	The AccessibleObject class is the base class for Field, Method and Constructor objects.
Account	Value type that represents an Account in the `AccountManager`.
AccountAuthenticatorActivity	Base class for implementing an Activity that is used to help implement an AbstractAccountAuthenticator.
AccountAuthenticatorResponse	Object used to communicate responses back to the AccountManager
AccountManager	This class provides access to a centralized registry of the user's online accounts.
AccountManagerCallback<V>
AccountManagerFuture<V>	A `AccountManagerFuture` represents the result of an asynchronous `AccountManager` call.
AccountsException
Acl	Interface representing an Access Control List (ACL).
AclEntry	This is the interface used for representing one entry in an Access Control List (ACL).
AclNotFoundException	This is an exception that is thrown whenever a reference is made to a non-existent ACL (Access Control List).
AcousticEchoCanceler	Acoustic Echo Canceler (AEC).
Action	An action contains one or two lines of text, an optional image and an optional id.
ActionBar	A primary toolbar within the activity that may display the activity title, application-level navigation affordances, and other interactive items.
ActionBar	A primary toolbar within the activity that may display the activity title, application-level navigation affordances, and other interactive items.
ActionBar.LayoutParams	Per-child layout information associated with action bar custom views.
ActionBar.LayoutParams	Per-child layout information associated with action bar custom views.
ActionBar.OnMenuVisibilityListener	Listener for receiving events when action bar menus are shown or hidden.
ActionBar.OnMenuVisibilityListener	Listener for receiving events when action bar menus are shown or hidden.
ActionBar.OnNavigationListener	This interface was deprecated in API level 21. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBar.OnNavigationListener	This interface is deprecated. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBar.Tab	This class was deprecated in API level 21. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBar.Tab	This class is deprecated. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBar.TabListener	This interface was deprecated in API level 21. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBar.TabListener	This interface is deprecated. Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other common navigation patterns instead.
ActionBarActivity	This class is deprecated. Use `AppCompatActivity` instead.
ActionBarDrawerToggle	This class is deprecated. Please use ActionBarDrawerToggle in support-v7-appcompat. This class provides a handy way to tie together the functionality of `DrawerLayout` and the framework `ActionBar` to implement the recommended design for navigation drawers. To use `ActionBarDrawerToggle`, create one in your Activity and call through to the following methods corresponding to your Activity callbacks: `onConfigurationChanged` `onOptionsItemSelected` Call `syncState()` from your `Activity`'s `onPostCreate` to synchronize the indicator with the state of the linked DrawerLayout after `onRestoreInstanceState` has occurred. `ActionBarDrawerToggle` can be used directly as a `DrawerLayout.DrawerListener`, or if you are already providing your own listener, call through to each of the listener methods from your own.
ActionBarDrawerToggle	This class provides a handy way to tie together the functionality of `DrawerLayout` and the framework `ActionBar` to implement the recommended design for navigation drawers.
ActionBarDrawerToggle.Delegate
ActionBarDrawerToggle.Delegate
ActionBarDrawerToggle.DelegateProvider	Allows an implementing Activity to return an `ActionBarDrawerToggle.Delegate` to use with ActionBarDrawerToggle.
ActionBarDrawerToggle.DelegateProvider	Allows an implementing Activity to return an `ActionBarDrawerToggle.Delegate` to use with ActionBarDrawerToggle.
ActionMenuView	ActionMenuView is a presentation of a series of menu options as a View.
ActionMenuView	ActionMenuView is a presentation of a series of menu options as a View.
ActionMenuView.LayoutParams
ActionMenuView.LayoutParams
ActionMenuView.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
ActionMenuView.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
ActionMode	Represents a contextual mode of the user interface.
ActionMode	Represents a contextual mode of the user interface.
ActionMode.Callback	Callback interface for action modes.
ActionMode.Callback	Callback interface for action modes.
ActionMode.Callback2	Extension of `ActionMode.Callback` to provide content rect information.
ActionProvider	This class is a mediator for accomplishing a given task, for example sharing a file.
ActionProvider	An ActionProvider defines rich menu interaction in a single component.
ActionProvider.VisibilityListener	Listens to changes in visibility as reported by `refreshVisibility()`.
ActionProvider.VisibilityListener	Listens to changes in visibility as reported by `refreshVisibility()`.
Activity	An activity is a single, focused thing that the user can do.
ActivityCompat	Helper for accessing features in `Activity` introduced after API level 13 in a backwards compatible fashion.
ActivityCompat	Helper for accessing features in `Activity` introduced after API level 4 in a backwards compatible fashion.
ActivityCompat.OnRequestPermissionsResultCallback	This interface is the contract for receiving the results for permission requests.
ActivityGroup	This class was deprecated in API level 13. Use the new `Fragment` and `FragmentManager` APIs instead; these are also available on older platforms through the Android compatibility package.
ActivityInfo	Information you can retrieve about a particular application activity or receiver.
ActivityInfo.WindowLayout	Contains information about position and size of the activity on the display.
ActivityInfoCompat	Helper for accessing features in `ActivityInfo` introduced after API level 4 in a backwards compatible fashion.
ActivityInstrumentationTestCase<T extends Activity>	This class was deprecated in API level 3. new tests should be written using `ActivityInstrumentationTestCase2`, which provides more options for configuring the Activity under test
ActivityInstrumentationTestCase2<T extends Activity>	This class was deprecated in API level 24. Use ActivityTestRule instead. New tests should be written using the Android Testing Support Library.
ActivityManager	Interact with the overall activities running in the system.
ActivityManager.AppTask	The AppTask allows you to manage your own application's tasks.
ActivityManager.MemoryInfo	Information you can retrieve about the available memory through `getMemoryInfo(ActivityManager.MemoryInfo)`.
ActivityManager.ProcessErrorStateInfo	Information you can retrieve about any processes that are in an error condition.
ActivityManager.RecentTaskInfo	Information you can retrieve about tasks that the user has most recently started or visited.
ActivityManager.RunningAppProcessInfo	Information you can retrieve about a running process.
ActivityManager.RunningServiceInfo	Information you can retrieve about a particular Service that is currently running in the system.
ActivityManager.RunningTaskInfo	Information you can retrieve about a particular task that is currently "running" in the system.
ActivityManager.TaskDescription	Information you can set and retrieve about the current activity within the recent task list.
ActivityManagerCompat	Helper for accessing features in `ActivityManager` introduced after API level 4 in a backwards compatible fashion.
ActivityNotFoundException	This exception is thrown when a call to `startActivity(Intent)` or one of its variants fails because an Activity can not be found to execute the given Intent.
ActivityOptions	Helper class for building an options Bundle that can be used with `Context.startActivity(Intent, Bundle)` and related methods.
ActivityOptionsCompat	Helper for accessing features in `ActivityOptions` introduced in API level 16 in a backwards compatible fashion.
ActivityTestCase	This class was deprecated in API level 24. New tests should be written using the Android Testing Support Library.
ActivityUnitTestCase<T extends Activity>	This class was deprecated in API level 24. Write Local Unit Tests instead.
Adapter	An Adapter object acts as a bridge between an `AdapterView` and the underlying data for that view.
AdapterView<T extends Adapter>	An AdapterView is a view whose children are determined by an `Adapter`.
AdapterView.AdapterContextMenuInfo	Extra menu information provided to the `onCreateContextMenu(ContextMenu, View, ContextMenuInfo)` callback when a context menu is brought up for this AdapterView.
AdapterView.OnItemClickListener	Interface definition for a callback to be invoked when an item in this AdapterView has been clicked.
AdapterView.OnItemLongClickListener	Interface definition for a callback to be invoked when an item in this view has been clicked and held.
AdapterView.OnItemSelectedListener	Interface definition for a callback to be invoked when an item in this view has been selected.
AdapterViewAnimator	Base class for a `AdapterView` that will perform animations when switching between its views.
AdapterViewFlipper	Simple `ViewAnimator` that will animate between two or more views that have been added to it.
Address	A class representing an Address, i.e, a set of Strings describing a location.
Adler32	A class that can be used to compute the Adler-32 checksum of a data stream.
Advanceable	This interface can be implemented by any collection-type view which has a notion of progressing through its set of children.
AdvertiseCallback	Bluetooth LE advertising callbacks, used to deliver advertising operation status.
AdvertiseData	Advertise data packet container for Bluetooth LE advertising.
AdvertiseData.Builder	Builder for `AdvertiseData`.
AdvertiseSettings	The `AdvertiseSettings` provide a way to adjust advertising preferences for each Bluetooth LE advertisement instance.
AdvertiseSettings.Builder	Builder class for `AdvertiseSettings`.
AEADBadTagException	This exception is thrown when a `Cipher` operating in an AEAD mode (such as GCM/CCM) is unable to verify the supplied authentication tag.
AlarmClock	The AlarmClock provider contains an Intent action and extras that can be used to start an Activity to set a new alarm or timer in an alarm clock application.
AlarmManager	This class provides access to the system alarm services.
AlarmManager.AlarmClockInfo	An immutable description of a scheduled "alarm clock" event.
AlarmManager.OnAlarmListener	Direct-notification alarms: the requester must be running continuously from the time the alarm is set to the time it is delivered, or delivery will fail.
AlertDialog	A subclass of Dialog that can display one, two or three buttons.
AlertDialog	A subclass of Dialog that can display one, two or three buttons.
AlertDialog.Builder
AlertDialog.Builder
AlgorithmConstraints	This interface specifies constraints for cryptographic algorithms, keys (key sizes), and other algorithm parameters.
AlgorithmParameterGenerator	The `AlgorithmParameterGenerator` class is used to generate a set of parameters to be used with a certain algorithm.
AlgorithmParameterGeneratorSpi	This class defines the Service Provider Interface (SPI) for the `AlgorithmParameterGenerator` class, which is used to generate a set of parameters to be used with a certain algorithm.
AlgorithmParameters	This class is used as an opaque representation of cryptographic parameters.
AlgorithmParameterSpec	A (transparent) specification of cryptographic parameters.
AlgorithmParametersSpi	This class defines the Service Provider Interface (SPI) for the `AlgorithmParameters` class, which is used to manage algorithm parameters.
AliasActivity	Stub activity that launches another activity (and then finishes itself) based on information in its component's manifest meta-data.
AlignmentSpan
AlignmentSpan.Standard
Allocation	This class provides the primary method through which data is passed to and from RenderScript kernels.
Allocation	This class provides the primary method through which data is passed to and from RenderScript kernels.
Allocation.MipmapControl	Controls mipmap behavior when using the bitmap creation and update functions.
Allocation.MipmapControl	Controls mipmap behavior when using the bitmap creation and update functions.
Allocation.OnBufferAvailableListener	Interface to handle notification when new buffers are available via `USAGE_IO_INPUT`.
AllocationAdapter	Only intended for use by generated reflected code.
AllowAllHostnameVerifier	This class was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
AllPermission	Legacy security code; do not use.
AlphaAnimation	An animation that controls the alpha level of an object.
AlphabeticIndex<V>	AlphabeticIndex supports the creation of a UI index appropriate for a given language.
AlphabeticIndex.Bucket<V>	An index "bucket" with a label string and type.
AlphabeticIndex.Bucket.LabelType	Type of the label
AlphabeticIndex.ImmutableIndex<V>	Immutable, thread-safe version of `AlphabeticIndex`.
AlphabeticIndex.Record<V>	A (name, data) pair, to be sorted by name into one of the index buckets.
AlphabetIndexer	A helper class for adapters that implement the SectionIndexer interface.
AlreadyBoundException	Unchecked exception thrown when an attempt is made to bind the socket a network oriented channel that is already bound.
AlreadyConnectedException	Unchecked exception thrown when an attempt is made to connect a `SocketChannel` that is already connected.
AlteredCharSequence	An AlteredCharSequence is a CharSequence that is largely mirrored from another CharSequence, except that a specified range of characters are mirrored from a different char array instead.
AlwaysOnHotwordDetector	A class that lets a VoiceInteractionService implementation interact with always-on keyphrase detection APIs.
AlwaysOnHotwordDetector.Callback	Callbacks for always-on hotword detection.
AlwaysOnHotwordDetector.EventPayload	Additional payload for `onDetected(AlwaysOnHotwordDetector.EventPayload)`.
AnalogClock	This class was deprecated in API level 23. This widget is no longer supported.
AndroidCharacter	AndroidCharacter exposes some character properties that are not easily accessed from java.lang.Character.
AndroidException	Base class for all checked exceptions thrown by the Android frameworks.
AndroidResources
AndroidRuntimeException	Base class for all unchecked exceptions thrown by the Android frameworks.
AndroidTestCase	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
AndroidTestRunner	This class was deprecated in API level 24. Use AndroidJUnitRunner instead. New tests should be written using the Android Testing Support Library.
Animatable	Interface that drawables supporting animations should implement.
Animatable2	Abstract class that drawables supporting animations and callbacks should extend.
Animatable2.AnimationCallback
AnimatedStateListDrawable	Drawable containing a set of Drawable keyframes where the currently displayed keyframe is chosen based on the current state set.
AnimatedVectorDrawable	This class uses `ObjectAnimator` and `AnimatorSet` to animate the properties of a `VectorDrawable` to create an animated drawable.
AnimatedVectorDrawableCompat	For API 23 and above, this class is delegating to the framework's `AnimatedVectorDrawable`.
Animation	Abstraction for an Animation that can be applied to Views, Surfaces, or other objects.
Animation.AnimationListener	An animation listener receives notifications from an animation.
Animation.Description	Utility class to parse a string description of a size.
AnimationDrawable	An object used to create frame-by-frame animations, defined by a series of Drawable objects, which can be used as a View object's background.
AnimationSet	Represents a group of Animations that should be played together.
AnimationUtils	Defines common utilities for working with animations.
Animator	This is the superclass for classes which provide basic support for animations which can be started, ended, and have `AnimatorListeners` added to them.
Animator.AnimatorListener	An animation listener receives notifications from an animation.
Animator.AnimatorPauseListener	A pause listener receives notifications from an animation when the animation is `paused` or `resumed`.
AnimatorInflater	This class is used to instantiate animator XML files into Animator objects.
AnimatorListenerAdapter	This adapter class provides empty implementations of the methods from `Animator.AnimatorListener`.
AnimatorRes	Denotes that an integer parameter, field or method return value is expected to be an animator resource reference (e.g.
AnimatorSet	This class plays a set of `Animator` objects in the specified order.
AnimatorSet.Builder	The `Builder` object is a utility class to facilitate adding animations to a `AnimatorSet` along with the relationships between the various animations.
AnimRes	Denotes that an integer parameter, field or method return value is expected to be an anim resource reference (e.g.
AnnotatedElement	Represents an annotated element of the program currently running in this VM.
Annotation	Annotations are simple key-value pairs that are preserved across TextView save/restore cycles and can be used to keep application-specific data that needs to be maintained for regions of text.
Annotation	The common interface extended by all annotation types.
Annotation	An Annotation object is used as a wrapper for a text attribute value if the attribute has annotation characteristics.
AnnotationFormatError	Thrown when the annotation parser attempts to read an annotation from a class file and determines that the annotation is malformed.
AnnotationTypeMismatchException	Thrown to indicate that a program has attempted to access an element of an annotation whose type has changed after the annotation was compiled (or serialized).
AnticipateInterpolator	An interpolator where the change starts backward then flings forward.
AnticipateOvershootInterpolator	An interpolator where the change starts backward then flings forward and overshoots the target value and finally goes back to the final value.
AnyRes	Denotes that an integer parameter, field or method return value is expected to be a resource reference of any type.
AnyThread	Denotes that the annotated method can be called from any thread (e.g.
AppBarLayout	AppBarLayout is a vertical `LinearLayout` which implements many of the features of material designs app bar concept, namely scrolling gestures.
AppBarLayout.Behavior	The default `AppBarLayout.Behavior` for `AppBarLayout`.
AppBarLayout.Behavior.DragCallback	Callback to allow control over any `AppBarLayout` dragging.
AppBarLayout.Behavior.SavedState
AppBarLayout.LayoutParams
AppBarLayout.OnOffsetChangedListener	Interface definition for a callback to be invoked when an `AppBarLayout`'s vertical offset changes.
AppBarLayout.ScrollingViewBehavior	Behavior which should be used by `View`s which can scroll vertically and support nested scrolling to automatically scroll any `AppBarLayout` siblings.
AppCompatActivity	Base class for activities that use the support library action bar features.
AppCompatAutoCompleteTextView	A `AutoCompleteTextView` which supports compatible features on older version of the platform, including: Supports `textAllCaps` style attribute which works back to `Eclair MR1`.
AppCompatButton	A `Button` which supports compatible features on older version of the platform, including: Supports `textAllCaps` style attribute which works back to `Eclair MR1`.
AppCompatCallback	Implemented this in order for AppCompat to be able to callback in certain situations.
AppCompatCheckBox	A `CheckBox` which supports compatible features on older version of the platform, including: Allows dynamic tint of it background via the background tint methods in `CompoundButtonCompat`.
AppCompatCheckedTextView	A `CheckedTextView` which supports compatible features on older version of the platform.
AppCompatDelegate	This class represents a delegate which you can use to extend AppCompat's support to any `Activity`.
AppCompatDialog	Base class for AppCompat themed `Dialog`s.
AppCompatDialogFragment	A special version of `DialogFragment` which uses an `AppCompatDialog` in place of a platform-styled dialog.
AppCompatEditText	A `EditText` which supports compatible features on older version of the platform, including: Supports `textAllCaps` style attribute which works back to `Eclair MR1`.
AppCompatImageButton	A `ImageButton` which supports compatible features on older version of the platform, including: Allows dynamic tint of it background via the background tint methods in `ViewCompat`.
AppCompatImageView	A `ImageView` which supports compatible features on older version of the platform, including: Allows dynamic tint of it background via the background tint methods in `ViewCompat`.
AppCompatMultiAutoCompleteTextView	A `MultiAutoCompleteTextView` which supports compatible features on older version of the platform, including: Supports `textAllCaps` style attribute which works back to `Eclair MR1`.
AppCompatRadioButton	A `RadioButton` which supports compatible features on older version of the platform, including: Allows dynamic tint of it background via the background tint methods in `CompoundButtonCompat`.
AppCompatRatingBar	A `RatingBar` which supports compatible features on older version of the platform.
AppCompatResources	Class for accessing an application's resources through AppCompat, and thus any backward compatible functionality.
AppCompatSeekBar	A `SeekBar` which supports compatible features on older version of the platform.
AppCompatSpinner	A `Spinner` which supports compatible features on older versions of the platform, including: Dynamic tinting of the background via the background tint methods in `ViewCompat`.
AppCompatTextView	A `TextView` which supports compatible features on older version of the platform, including: Supports `textAllCaps` style attribute which works back to `Eclair MR1`.
Appendable	An object to which `char` sequences and values can be appended.
AppLaunchChecker	This class provides APIs for determining how an app has been launched.
Application	Base class for maintaining global application state.
Application.ActivityLifecycleCallbacks
Application.OnProvideAssistDataListener	Callback interface for use with `registerOnProvideAssistDataListener(Application.OnProvideAssistDataListener)` and `unregisterOnProvideAssistDataListener(Application.OnProvideAssistDataListener)`.
ApplicationErrorReport	Describes an application error.
ApplicationErrorReport.AnrInfo	Describes an application not responding error.
ApplicationErrorReport.BatteryInfo	Describes a battery usage report.
ApplicationErrorReport.CrashInfo	Describes an application crash.
ApplicationErrorReport.RunningServiceInfo	Describes a running service report.
ApplicationInfo	Information you can retrieve about a particular application.
ApplicationInfo.DisplayNameComparator
ApplicationTestCase<T extends Application>	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
AppOpsManager	API for interacting with "application operation" tracking.
AppOpsManager.OnOpChangedListener	Callback for notification of changes to operation state.
AppOpsManagerCompat	Helper for accessing features in android.app.AppOpsManager introduced after API level 4 in a backwards compatible fashion.
AppWidgetHost	AppWidgetHost provides the interaction with the AppWidget service for apps, like the home screen, that want to embed AppWidgets in their UI.
AppWidgetHostView	Provides the glue to show AppWidget views.
AppWidgetManager	Updates AppWidget state; gets information about installed AppWidget providers and other AppWidget related state.
AppWidgetProvider	A convenience class to aid in implementing an AppWidget provider.
AppWidgetProviderInfo	Describes the meta data for an installed AppWidget provider.
ArcMotion	A PathMotion that generates a curved path along an arc on an imaginary circle containing the two points.
ArcShape	Creates an arc shape.
ArgbEvaluator	This evaluator can be used to perform type interpolation between integer values that represent ARGB colors.
ArithmeticException	Thrown when an exceptional arithmetic condition has occurred.
Array	The `Array` class provides static methods to dynamically create and access Java arrays.
Array	The mapping in the Java programming language for the SQL type `ARRAY`.
ArrayAdapter<T>	A concrete BaseAdapter that is backed by an array of arbitrary objects.
ArrayBlockingQueue<E>	A bounded blocking queue backed by an array.
ArrayDeque<E>	Resizable-array implementation of the `Deque` interface.
ArrayIndexOutOfBoundsException	Thrown to indicate that an array has been accessed with an illegal index.
ArrayList<E>	Resizable-array implementation of the `List` interface.
ArrayMap<K, V>	ArrayMap is a generic key->value mapping data structure that is designed to be more memory efficient than a traditional `HashMap`, this implementation is a version of the platform's `ArrayMap` that can be used on older versions of the platform.
ArrayMap<K, V>	ArrayMap is a generic key->value mapping data structure that is designed to be more memory efficient than a traditional `HashMap`.
ArrayObjectAdapter	An `ObjectAdapter` implemented with an `ArrayList`.
ArrayRes	Denotes that an integer parameter, field or method return value is expected to be an array resource reference (e.g.
Arrays	This class contains various methods for manipulating arrays (such as sorting and searching).
ArraySet<E>	ArraySet is a generic set data structure that is designed to be more memory efficient than a traditional `HashSet`.
ArrayStoreException	Thrown to indicate that an attempt has been made to store the wrong type of object into an array of objects.
ArrowKeyMovementMethod	A movement method that provides cursor movement and selection.
Assert	A set of assert methods.
AssertionError	Thrown to indicate that an assertion has failed.
AssertionFailedError	This class was deprecated in API level 16. use junit.framework.AssertionFailedError
AssertionFailedError	Thrown when an assertion failed.
AssetFileDescriptor	File descriptor of an entry in the AssetManager.
AssetFileDescriptor.AutoCloseInputStream	An InputStream you can create on a ParcelFileDescriptor, which will take care of calling `ParcelFileDescritor.close()` for you when the stream is closed.
AssetFileDescriptor.AutoCloseOutputStream	An OutputStream you can create on a ParcelFileDescriptor, which will take care of calling `ParcelFileDescritor.close()` for you when the stream is closed.
AssetManager	Provides access to an application's raw asset files; see `Resources` for the way most applications will want to retrieve their resource data.
AssetManager.AssetInputStream
AssistContent	Holds information about the content an application is viewing, to hand to an assistant at the user's request.
AssistStructure	Assist data automatically created by the platform's implementation of `onProvideAssistData(Bundle)`.
AssistStructure.ViewNode	Describes a single view in the assist data.
AssistStructure.WindowNode	Describes a window in the assist data.
AsynchronousCloseException	Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.
AsyncLayoutInflater	Helper class for inflating layouts asynchronously.
AsyncLayoutInflater.OnInflateFinishedListener
AsyncListUtil<T>	A utility class that supports asynchronous content loading.
AsyncListUtil.DataCallback<T>	The callback that provides data access for `AsyncListUtil`.
AsyncListUtil.ViewCallback	The callback that links `AsyncListUtil` with the list view.
AsyncPlayer	Plays a series of audio URIs, but does all the hard work on another thread so that any slowness with preparing or loading doesn't block the calling thread.
AsyncQueryHandler	A helper class to help make handling asynchronous `ContentResolver` queries easier.
AsyncQueryHandler.WorkerArgs
AsyncQueryHandler.WorkerHandler
AsyncTask<Params, Progress, Result>	AsyncTask enables proper and easy use of the UI thread.
AsyncTask.Status	Indicates the current status of the task.
AsyncTaskCompat	Helper for accessing features in `AsyncTask` introduced after API level 4 in a backwards compatible fashion.
AsyncTaskLoader<D>	Abstract Loader that provides an `AsyncTask` to do the work.
AsyncTaskLoader<D>	Static library support version of the framework's `AsyncTaskLoader`.
AtomicBoolean	A `boolean` value that may be updated atomically.
AtomicFile	Static library support version of the framework's `AtomicFile`, a helper class for performing atomic operations on a file by creating a backup file until a write has successfully completed.
AtomicFile	Helper class for performing atomic operations on a file by creating a backup file until a write has successfully completed.
AtomicInteger	An `int` value that may be updated atomically.
AtomicIntegerArray	An `int` array in which elements may be updated atomically.
AtomicIntegerFieldUpdater<T>	A reflection-based utility that enables atomic updates to designated `volatile int` fields of designated classes.
AtomicLong	A `long` value that may be updated atomically.
AtomicLongArray	A `long` array in which elements may be updated atomically.
AtomicLongFieldUpdater<T>	A reflection-based utility that enables atomic updates to designated `volatile long` fields of designated classes.
AtomicMarkableReference<V>	An `AtomicMarkableReference` maintains an object reference along with a mark bit, that can be updated atomically.
AtomicReference<V>	An object reference that may be updated atomically.
AtomicReferenceArray<E>	An array of object references in which elements may be updated atomically.
AtomicReferenceFieldUpdater<T, V>	A reflection-based utility that enables atomic updates to designated `volatile` reference fields of designated classes.
AtomicStampedReference<V>	An `AtomicStampedReference` maintains an object reference along with an integer "stamp", that can be updated atomically.
Attr	The `Attr` interface represents an attribute in an `Element` object.
AttributedCharacterIterator	An `AttributedCharacterIterator` allows iteration through both text and related attribute information.
AttributedCharacterIterator.Attribute	Defines attribute keys that are used to identify text attributes.
AttributedString	An AttributedString holds text and related attribute information.
AttributeList	This interface was deprecated in API level 1. This interface has been replaced by the SAX2 `Attributes` interface, which includes Namespace support.
AttributeListImpl	This class was deprecated in API level 1. This class implements a deprecated interface, `AttributeList`; that interface has been replaced by `Attributes`, which is implemented in the `AttributesImpl` helper class.
Attributes	The Attributes class maps Manifest attribute names to associated string values.
Attributes	Interface for a list of XML attributes.
Attributes.Name	The Attributes.Name class represents an attribute name stored in this Map.
Attributes2	SAX2 extension to augment the per-attribute information provided though `Attributes`.
Attributes2Impl	SAX2 extension helper for additional Attributes information, implementing the `Attributes2` interface.
AttributeSet	A collection of attributes, as found associated with a tag in an XML document.
AttributesImpl	Default implementation of the Attributes interface.
AttrRes	Denotes that an integer parameter, field or method return value is expected to be an attribute reference (e.g.
AudioAttributes	A class to encapsulate a collection of attributes describing information about an audio stream.
AudioAttributes.Builder	Builder class for `AudioAttributes` objects.
AudioCodec	This class defines a collection of audio codecs to be used with `AudioStream`s.
AudioDeviceCallback	AudioDeviceCallback defines the mechanism by which applications can receive notifications of audio device connection and disconnection events.
AudioDeviceInfo	Class to provide information about the audio devices.
AudioEffect	AudioEffect is the base class for controlling audio effects provided by the android audio framework.
AudioEffect.Descriptor	The effect descriptor contains information on a particular effect implemented in the audio framework: type: UUID identifying the effect type.
AudioEffect.OnControlStatusChangeListener	The OnControlStatusChangeListener interface defines a method called by the AudioEffect when a the control of the effect engine is gained or lost by the application
AudioEffect.OnEnableStatusChangeListener	The OnEnableStatusChangeListener interface defines a method called by the AudioEffect when a the enabled state of the effect engine was changed by the controlling application.
AudioFormat	The `AudioFormat` class is used to access a number of audio format and channel configuration constants.
AudioFormat.Builder	Builder class for `AudioFormat` objects.
AudioGroup	An AudioGroup is an audio hub for the speaker, the microphone, and `AudioStream`s.
AudioManager	AudioManager provides access to volume and ringer mode control.
AudioManager.AudioRecordingCallback	Interface for receiving update notifications about the recording configuration.
AudioManager.OnAudioFocusChangeListener	Interface definition for a callback to be invoked when the audio focus of the system is updated.
AudioRecord	The AudioRecord class manages the audio resources for Java applications to record audio from the audio input hardware of the platform.
AudioRecord.Builder	Builder class for `AudioRecord` objects.
AudioRecord.OnRecordPositionUpdateListener	Interface definition for a callback to be invoked when an AudioRecord has reached a notification marker set by `setNotificationMarkerPosition(int)` or for periodic updates on the progress of the record head, as set by `setPositionNotificationPeriod(int)`.
AudioRecord.OnRoutingChangedListener	This interface was deprecated in API level 24. users should switch to the general purpose `AudioRouting.OnRoutingChangedListener` class instead.
AudioRecordingConfiguration	The AudioRecordingConfiguration class collects the information describing an audio recording session.
AudioRouting	AudioRouting defines an interface for controlling routing and routing notifications in AudioTrack and AudioRecord objects.
AudioRouting.OnRoutingChangedListener	Defines the interface by which applications can receive notifications of routing changes for the associated `AudioRouting`.
AudioStream	An AudioStream is a `RtpStream` which carrys audio payloads over Real-time Transport Protocol (RTP).
AudioTimestamp	Structure that groups a position in frame units relative to an assumed audio stream, together with the estimated time when that frame enters or leaves the audio processing pipeline on that device.
AudioTrack	The AudioTrack class manages and plays a single audio resource for Java applications.
AudioTrack.Builder	Builder class for `AudioTrack` objects.
AudioTrack.OnPlaybackPositionUpdateListener	Interface definition for a callback to be invoked when the playback head position of an AudioTrack has reached a notification marker or has increased by a certain period.
AudioTrack.OnRoutingChangedListener	This interface was deprecated in API level 24. users should switch to the general purpose `AudioRouting.OnRoutingChangedListener` class instead.
Authenticator	The class Authenticator represents an object that knows how to obtain authentication for a network connection.
Authenticator.RequestorType	The type of the entity requesting authentication.
AuthenticatorDescription	A `Parcelable` value type that contains information about an account authenticator.
AuthenticatorException
AuthPermission	Legacy security code; do not use.
AuthProvider	Legacy security code; do not use.
AutoCloseable	A resource that must be closed when it is no longer needed.
AutoCompleteTextView	An editable text view that shows completion suggestions automatically while the user is typing.
AutoCompleteTextView.OnDismissListener	Listener to respond to the AutoCompleteTextView's completion list being dismissed.
AutoCompleteTextView.Validator	This interface is used to make sure that the text entered in this TextView complies to a certain format.
AutomaticGainControl	Automatic Gain Control (AGC).
AutomaticZenRule	Rule instance information for zen mode.
AutoScrollHelper	AutoScrollHelper is a utility class for adding automatic edge-triggered scrolling to Views.
AutoText	This class accesses a dictionary of corrections to frequent misspellings.
AutoTransition	Utility class for creating a default transition that automatically fades, moves, and resizes views during a scene change.

B

BackgroundColorSpan
BackgroundManager	Supports background image continuity between multiple Activities.
BackingStoreException	Thrown to indicate that a preferences operation could not complete because of a failure in the backing store, or a failure to contact the backing store.
BackupAgent	Provides the central interface between an application and Android's data backup infrastructure.
BackupAgentHelper	A convenient `BackupAgent` wrapper class that automatically manages heterogeneous data sets within the backup data, each identified by a unique key prefix.
BackupDataInput	Provides the structured interface through which a `BackupAgent` reads information from the backup data set, via its `onRestore()` method.
BackupDataInputStream	Provides an `InputStream`-like interface for accessing an entity's data during a restore operation.
BackupDataOutput	Provides the structured interface through which a `BackupAgent` commits information to the backup data set, via its `onBackup()` method.
BackupHelper	Defines the calling interface that `BackupAgentHelper` uses when dispatching backup and restore operations to the installed helpers.
BackupManager	The interface through which an application interacts with the Android backup service to request backup and restore operations.
BadPaddingException	This exception is thrown when a particular padding mechanism is expected for the input data but the data is not padded properly.
BadParcelableException	Exception thrown when a `Parcelable` is malformed or otherwise invalid.
Base64	Utilities for encoding and decoding the Base64 representation of binary data.
Base64DataException	This exception is thrown by `Base64InputStream` or `Base64OutputStream` when an error is detected in the data being decoded.
Base64InputStream	An InputStream that does Base64 decoding on the data read through it.
Base64OutputStream	An OutputStream that does Base64 encoding on the data written to it, writing the resulting data to another OutputStream.
BaseAdapter	Common base class of common implementation for an `Adapter` that can be used in both `ListView` (by implementing the specialized `ListAdapter` interface) and `Spinner` (by implementing the specialized `SpinnerAdapter` interface).
BaseBundle	A mapping from String keys to values of various types.
BaseCardView	A card style layout that responds to certain state changes.
BaseCardView.LayoutParams	Per-child layout information associated with BaseCardView.
BaseColumns
BaseDexClassLoader	Base class for common functionality between various dex-based `ClassLoader` implementations.
BaseExpandableListAdapter	Base class for a `ExpandableListAdapter` used to provide data and Views from some data to an expandable list view.
BaseInputConnection	Base class for implementors of the InputConnection interface, taking care of most of the common behavior for providing a connection to an Editable.
BaseInterpolator	An abstract class which is extended by default interpolators.
BaseKeyListener	Abstract base class for key listeners.
BaseLeanbackPreferenceFragment	This fragment provides a preference fragment with leanback-style behavior, suitable for embedding into broader UI elements.
BaseMovementMethod	Base classes for movement methods.
BaseObj	BaseObj is the base class for all RenderScript objects owned by a RS context.
BaseObj	BaseObj is the base class for all RenderScript objects owned by a RS context.
BaseObservable	A convenience class that implements `Observable` interface and provides `notifyPropertyChanged(int)` and `notifyChange()` methods.
BaseOnItemViewClickedListener<T>	Interface for receiving notification when an item view holder is clicked.
BaseOnItemViewSelectedListener<T>	Interface for receiving notification when a row or item becomes selected.
BaseStream<T, S extends BaseStream<T, S>>	Base interface for streams, which are sequences of elements supporting sequential and parallel aggregate operations.
BaseTestRunner	Base class for all test runners.
BasicPermission	Legacy security code; do not use.
BassBoost	Bass boost is an audio effect to boost or amplify low frequencies of the sound.
BassBoost.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the BassBoost when a parameter value has changed.
BassBoost.Settings	The Settings class regroups all bass boost parameters.
BatchUpdateException	The subclass of `SQLException` thrown when an error occurs during a batch update operation.
BatteryManager	The BatteryManager class contains strings and constants used for values in the `ACTION_BATTERY_CHANGED` Intent, and provides a method for querying battery and charging properties.
BiConsumer<T, U>	Represents an operation that accepts two input arguments and returns no result.
Bidi	This class implements the Unicode Bidirectional Algorithm.
BidiFormatter	Utility class for formatting text for display in a potentially opposite-directionality context without garbling.
BidiFormatter	Utility class for formatting text for display in a potentially opposite-directionality context without garbling.
BidiFormatter.Builder	A class for building a BidiFormatter with non-default options.
BidiFormatter.Builder	A class for building a BidiFormatter with non-default options.
BidirectionalTypeConverter<T, V>	Abstract base class used convert type T to another type V and back again.
BiFunction<T, U, R>	Represents a function that accepts two arguments and produces a result.
BigDecimal	The `BigDecimal` class implements immutable arbitrary-precision decimal numbers.
BigDecimal	An immutable arbitrary-precision signed decimal.
BigInteger	An immutable arbitrary-precision signed integer.
BinaryOperator<T>	Represents an operation upon two operands of the same type, producing a result of the same type as the operands.
Bindable	The Bindable annotation should be applied to any getter accessor method of an `Observable` class.
Binder	Base class for a remotable object, the core part of a lightweight remote procedure call mechanism defined by `IBinder`.
BinderThread	Denotes that the annotated method should only be called on the binder thread.
BindException	Signals that an error occurred while attempting to bind a socket to a local address and port.
BindingAdapter	BindingAdapter is applied to methods that are used to manipulate how values with expressions are set to views.
BindingConversion	Annotate methods that are used to automatically convert from the expression type to the value used in the setter.
BindingMethod	Used within an `BindingMethods` annotation to describe a renaming of an attribute to the setter used to set that attribute.
BindingMethods	Used to enumerate attribute-to-setter renaming.
BiPredicate<T, U>	Represents a predicate (boolean-valued function) of two arguments.
Bitmap
Bitmap.CompressFormat	Specifies the known formats a bitmap can be compressed into
Bitmap.Config	Possible bitmap configurations.
BitmapCompat	Helper for accessing features in `Bitmap` introduced after API level 4 in a backwards compatible fashion.
BitmapDrawable	A Drawable that wraps a bitmap and can be tiled, stretched, or aligned.
BitmapFactory	Creates Bitmap objects from various sources, including files, streams, and byte-arrays.
BitmapFactory.Options
BitmapRegionDecoder	BitmapRegionDecoder can be used to decode a rectangle region from an image.
BitmapShader	Shader used to draw a bitmap as a texture.
BitSet	This class implements a vector of bits that grows as needed.
BlackLevelPattern	Immutable class to store a 4-element vector of integers corresponding to a 2x2 pattern of color channel offsets used for the black level offsets of each color channel.
Blob	The representation (mapping) in the Java^TM programming language of an SQL `BLOB` value.
BlockedNumberContract	The contract between the blockednumber provider and applications.
BlockedNumberContract.BlockedNumbers	Constants to interact with the blocked numbers list.
BlockingDeque<E>	A `Deque` that additionally supports blocking operations that wait for the deque to become non-empty when retrieving an element, and wait for space to become available in the deque when storing an element.
BlockingQueue<E>	A `Queue` that additionally supports operations that wait for the queue to become non-empty when retrieving an element, and wait for space to become available in the queue when storing an element.
BluetoothA2dp	This class provides the public APIs to control the Bluetooth A2DP profile.
BluetoothAdapter	Represents the local device Bluetooth adapter.
BluetoothAdapter.LeScanCallback	Callback interface used to deliver LE scan results.
BluetoothAssignedNumbers	Bluetooth Assigned Numbers.
BluetoothClass	Represents a Bluetooth class, which describes general characteristics and capabilities of a device.
BluetoothClass.Device	Defines all device class constants.
BluetoothClass.Device.Major	Defines all major device class constants.
BluetoothClass.Service	Defines all service class constants.
BluetoothDevice	Represents a remote Bluetooth device.
BluetoothGatt	Public API for the Bluetooth GATT Profile.
BluetoothGattCallback	This abstract class is used to implement `BluetoothGatt` callbacks.
BluetoothGattCharacteristic	Represents a Bluetooth GATT Characteristic A GATT characteristic is a basic data element used to construct a GATT service, `BluetoothGattService`.
BluetoothGattDescriptor	Represents a Bluetooth GATT Descriptor GATT Descriptors contain additional information and attributes of a GATT characteristic, `BluetoothGattCharacteristic`.
BluetoothGattServer	Public API for the Bluetooth GATT Profile server role.
BluetoothGattServerCallback	This abstract class is used to implement `BluetoothGattServer` callbacks.
BluetoothGattService	Represents a Bluetooth GATT Service Gatt Service contains a collection of `BluetoothGattCharacteristic`, as well as referenced services.
BluetoothHeadset	Public API for controlling the Bluetooth Headset Service.
BluetoothHealth	Public API for Bluetooth Health Profile.
BluetoothHealthAppConfiguration	The Bluetooth Health Application Configuration that is used in conjunction with the `BluetoothHealth` class.
BluetoothHealthCallback	This abstract class is used to implement `BluetoothHealth` callbacks.
BluetoothLeAdvertiser	This class provides a way to perform Bluetooth LE advertise operations, such as starting and stopping advertising.
BluetoothLeScanner	This class provides methods to perform scan related operations for Bluetooth LE devices.
BluetoothManager	High level manager used to obtain an instance of an `BluetoothAdapter` and to conduct overall Bluetooth Management.
BluetoothProfile	Public APIs for the Bluetooth Profiles.
BluetoothProfile.ServiceListener	An interface for notifying BluetoothProfile IPC clients when they have been connected or disconnected to the service.
BluetoothServerSocket	A listening Bluetooth socket.
BluetoothSocket	A connected or connecting Bluetooth socket.
BlurMaskFilter	This takes a mask, and blurs its edge by the specified radius.
BlurMaskFilter.Blur
Boolean	The Boolean class wraps a value of the primitive type `boolean` in an object.
BooleanSupplier	Represents a supplier of `boolean`-valued results.
BoolRes	Denotes that an integer parameter, field or method return value is expected to be a boolean resource reference.
BoringLayout	A BoringLayout is a very simple Layout implementation for text that fits on a single line and is all left-to-right characters.
BoringLayout.Metrics
BottomSheetBehavior<V extends View>	An interaction behavior plugin for a child view of `CoordinatorLayout` to make it work as a bottom sheet.
BottomSheetBehavior.BottomSheetCallback	Callback for monitoring events about bottom sheets.
BottomSheetBehavior.SavedState
BottomSheetDialog	Base class for `Dialog`s styled as a bottom sheet.
BottomSheetDialogFragment	Modal bottom sheet.
BounceInterpolator	An interpolator where the change bounces at the end.
BrandedFragment	Fragment class for managing search and branding using a view that implements `TitleViewAdapter.Provider`.
BrandedSupportFragment	Fragment class for managing search and branding using a view that implements `TitleViewAdapter.Provider`.
BreakIterator	[icu enhancement] ICU's replacement for `BreakIterator`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
BreakIterator	The `BreakIterator` class implements methods for finding the location of boundaries in text.
BroadcastReceiver	Base class for code that will receive intents sent by sendBroadcast().
BroadcastReceiver.PendingResult	State for a result that is pending for a broadcast receiver.
BrokenBarrierException	Exception thrown when a thread tries to wait upon a barrier that is in a broken state, or which enters the broken state while the thread is waiting.
BrowseFragment	A fragment for creating Leanback browse screens.
BrowseFragment.BrowseTransitionListener	Listener for transitions between browse headers and rows.
BrowseFragment.FragmentFactory<T extends Fragment>	Factory class responsible for creating fragment given the current item.
BrowseFragment.FragmentHost	Possible set of actions that `BrowseFragment` exposes to clients.
BrowseFragment.ListRowFragmentFactory	FragmentFactory implementation for `ListRow`.
BrowseFragment.MainFragmentAdapter<T extends Fragment>	Interface that defines the interaction between `BrowseFragment` and it's main content fragment.
BrowseFragment.MainFragmentAdapterProvider	Interface to be implemented by all fragments for providing an instance of `BrowseFragment.MainFragmentAdapter`.
BrowseFragment.MainFragmentAdapterRegistry	Registry class maintaining the mapping of `Row` subclasses to `BrowseFragment.FragmentFactory`.
BrowseFragment.MainFragmentRowsAdapter<T extends Fragment>	This is used to pass information to `RowsFragment` or its subclasses.
BrowseFragment.MainFragmentRowsAdapterProvider	Interface to be implemented by `RowsFragment` and it's subclasses for providing an instance of `BrowseFragment.MainFragmentRowsAdapter`.
BrowseFrameLayout	A ViewGroup for managing focus behavior between overlapping views.
BrowseFrameLayout.OnChildFocusListener	Interface for managing child focus in a BrowseFrameLayout.
BrowseFrameLayout.OnFocusSearchListener	Interface for selecting a focused view in a BrowseFrameLayout when the system focus finder couldn't find a view to focus.
Browser
BrowserCompatHostnameVerifier	This class was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
BrowseSupportFragment	A fragment for creating Leanback browse screens.
BrowseSupportFragment.BrowseTransitionListener	Listener for transitions between browse headers and rows.
BrowseSupportFragment.FragmentFactory<T extends Fragment>	Factory class responsible for creating fragment given the current item.
BrowseSupportFragment.FragmentHost	Possible set of actions that `BrowseSupportFragment` exposes to clients.
BrowseSupportFragment.ListRowFragmentFactory	FragmentFactory implementation for `ListRow`.
BrowseSupportFragment.MainFragmentAdapter<T extends Fragment>	Interface that defines the interaction between `BrowseSupportFragment` and it's main content fragment.
BrowseSupportFragment.MainFragmentAdapterProvider	Interface to be implemented by all fragments for providing an instance of `BrowseSupportFragment.MainFragmentAdapter`.
BrowseSupportFragment.MainFragmentAdapterRegistry	Registry class maintaining the mapping of `Row` subclasses to `BrowseSupportFragment.FragmentFactory`.
BrowseSupportFragment.MainFragmentRowsAdapter<T extends Fragment>	This is used to pass information to `RowsSupportFragment` or its subclasses.
BrowseSupportFragment.MainFragmentRowsAdapterProvider	Interface to be implemented by `RowsSupportFragment` and it's subclasses for providing an instance of `BrowseSupportFragment.MainFragmentRowsAdapter`.
BuddhistCalendar	`BuddhistCalendar` is a subclass of `GregorianCalendar` that numbers years since the birth of the Buddha.
Buffer	A container for data of a specific primitive type.
BufferedInputStream	A `BufferedInputStream` adds functionality to another input stream-namely, the ability to buffer the input and to support the `mark` and `reset` methods.
BufferedOutputStream	The class implements a buffered output stream.
BufferedReader	Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
BufferedWriter	Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
BufferOverflowException	Unchecked exception thrown when a relative put operation reaches the target buffer's limit.
BufferUnderflowException	Unchecked exception thrown when a relative get operation reaches the source buffer's limit.
Build	Information about the current build, extracted from system properties.
Build.VERSION	Various version strings.
Build.VERSION_CODES	Enumeration of the currently known SDK version codes.
BuildCompat	BuildCompat contains additional platform version checking methods for testing compatibility with new features.
BulletSpan
Bundle	A mapping from String keys to various `Parcelable` values.
BundleCompat	Helper for accessing features in `Bundle` introduced after API level 4 in a backwards compatible fashion.
Button	Represents a push-button widget.
Byte	The `Byte` class wraps a value of primitive type `byte` in an object.
Byte2	Class for exposing the native RenderScript byte2 type back to the Android system.
Byte2	Class for exposing the native RenderScript byte2 type back to the Android system.
Byte3	Class for exposing the native RenderScript byte3 type back to the Android system.
Byte3	Class for exposing the native RenderScript byte3 type back to the Android system.
Byte4	Class for exposing the native RenderScript byte4 type back to the Android system.
Byte4	Class for exposing the native RenderScript byte4 type back to the Android system.
ByteArrayInputStream	A `ByteArrayInputStream` contains an internal buffer that contains bytes that may be read from the stream.
ByteArrayOutputStream	This class implements an output stream in which the data is written into a byte array.
ByteBuffer	A byte buffer.
ByteChannel	A channel that can read and write bytes.
ByteOrder	A typesafe enumeration for byte orders.

C

CacheRequest	Represents channels for storing resources in the ResponseCache.
CacheResponse	Represent channels for retrieving resources from the ResponseCache.
Calendar	[icu enhancement] ICU's replacement for `Calendar`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
Calendar	The `Calendar` class is an abstract class that provides methods for converting between a specific instant in time and a set of `calendar fields` such as `YEAR`, `MONTH`, `DAY_OF_MONTH`, `HOUR`, and so on, and for manipulating the calendar fields, such as getting the date of the next week.
Calendar.WeekData	Simple, immutable struct-like class for access to the CLDR weekend data.
CalendarContract	The contract between the calendar provider and applications.
CalendarContract.Attendees	Fields and helpers for interacting with Attendees.
CalendarContract.AttendeesColumns	Columns from the Attendees table that other tables join into themselves.
CalendarContract.CalendarAlerts	Fields and helpers for accessing calendar alerts information.
CalendarContract.CalendarAlertsColumns
CalendarContract.CalendarCache	CalendarCache stores some settings for calendar including the current time zone for the instances.
CalendarContract.CalendarCacheColumns
CalendarContract.CalendarColumns	Columns specific to the Calendars Uri that other Uris can query.
CalendarContract.CalendarEntity	Class that represents a Calendar Entity.
CalendarContract.Calendars	Constants and helpers for the Calendars table, which contains details for individual calendars.
CalendarContract.CalendarSyncColumns	Generic columns for use by sync adapters.
CalendarContract.Colors	Fields for accessing colors available for a given account.
CalendarContract.ColorsColumns
CalendarContract.EventDays	Fields and helpers for querying for a list of days that contain events.
CalendarContract.EventDaysColumns
CalendarContract.Events	Constants and helpers for the Events table, which contains details for individual events.
CalendarContract.EventsColumns	Columns from the Events table that other tables join into themselves.
CalendarContract.EventsEntity	Class that represents an Event Entity.
CalendarContract.ExtendedProperties	Fields for accessing the Extended Properties.
CalendarContract.ExtendedPropertiesColumns
CalendarContract.Instances	Fields and helpers for interacting with Instances.
CalendarContract.Reminders	Fields and helpers for accessing reminders for an event.
CalendarContract.RemindersColumns
CalendarContract.SyncColumns	Columns for Sync information used by Calendars and Events tables.
CalendarContract.SyncState	A table provided for sync adapters to use for storing private sync state data.
CalendarView	This class is a calendar widget for displaying and selecting dates.
CalendarView.OnDateChangeListener	The callback used to indicate the user changes the date.
Call	Represents an ongoing phone call that the in-call app should present to the user.
Call.Callback
Call.Details
Callable<V>	A task that returns a result and may throw an exception.
CallableStatement	The interface used to execute SQL stored procedures.
CallAudioState	Encapsulates the telecom audio state, including the current audio routing, supported audio routing and mute.
Callback	Implementations of this interface are passed to a `CallbackHandler`, allowing underlying security services the ability to interact with a calling application to retrieve specific authentication data such as usernames and passwords, or to display certain information, such as error and warning messages.
CallbackHandler	An application implements a `CallbackHandler` and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.
CallbackRegistry<C, T, A>	A utility for storing and notifying callbacks.
CallbackRegistry.NotifierCallback<C, T, A>	Class used to notify events from CallbackRegistry.
CallLog	The CallLog provider contains information about placed and received calls.
CallLog.Calls	Contains the recent calls.
CallScreeningService	This service can be implemented by the default dialer (see `getDefaultDialerPackage()`) to allow or disallow incoming calls before they are shown to a user.
CallScreeningService.CallResponse
CallScreeningService.CallResponse.Builder
CallSuper	Denotes that any overriding methods should invoke this method as well.
CamcorderProfile	Retrieves the predefined camcorder profile settings for camcorder applications.
Camera	A camera instance can be used to compute 3D transformations and generate a matrix that can be applied, for instance, on a `Canvas`.
Camera	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.Area	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.AutoFocusCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.AutoFocusMoveCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.CameraInfo	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.ErrorCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.Face	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.FaceDetectionListener	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.OnZoomChangeListener	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.Parameters	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.PictureCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.PreviewCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.ShutterCallback	This interface was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
Camera.Size	This class was deprecated in API level 21. We recommend using the new `android.hardware.camera2` API for new applications.
CameraAccessException	`CameraAccessException` is thrown if a camera device could not be queried or opened by the `CameraManager`, or if the connection to an opened `CameraDevice` is no longer valid.
CameraCaptureSession	A configured capture session for a `CameraDevice`, used for capturing images from the camera or reprocessing images captured from the camera in the same session previously.
CameraCaptureSession.CaptureCallback	A callback object for tracking the progress of a `CaptureRequest` submitted to the camera device.
CameraCaptureSession.StateCallback	A callback object for receiving updates about the state of a camera capture session.
CameraCharacteristics	The properties describing a `CameraDevice`.
CameraCharacteristics.Key<T>	A `Key` is used to do camera characteristics field lookups with `get(CameraCharacteristics.Key)`.
CameraConstrainedHighSpeedCaptureSession	A constrained high speed capture session for a `CameraDevice`, used for capturing high speed images from the `CameraDevice` for high speed video recording use case.
CameraDevice	The CameraDevice class is a representation of a single camera connected to an Android device, allowing for fine-grain control of image capture and post-processing at high frame rates.
CameraDevice.StateCallback	A callback objects for receiving updates about the state of a camera device.
CameraManager	A system service manager for detecting, characterizing, and connecting to `CameraDevices`.
CameraManager.AvailabilityCallback	A callback for camera devices becoming available or unavailable to open.
CameraManager.TorchCallback	A callback for camera flash torch modes becoming unavailable, disabled, or enabled.
CameraMetadata<TKey>	The base class for camera controls and information.
CameraPrewarmService	Extend this class to implement a camera prewarm service.
CameraProfile	The CameraProfile class is used to retrieve the pre-defined still image capture (jpeg) quality levels (0-100) used for low, medium, and high quality settings in the Camera application.
CancellationException	Exception indicating that the result of a value-producing task, such as a `FutureTask`, cannot be retrieved because the task was cancelled.
CancellationSignal	Provides the ability to cancel an operation in progress.
CancellationSignal	Static library support version of the framework's `CancellationSignal`.
CancellationSignal.OnCancelListener	Listens for cancellation.
CancellationSignal.OnCancelListener	Listens for cancellation.
CancelledKeyException	Unchecked exception thrown when an attempt is made to use a selection key that is no longer valid.
Canvas	The Canvas class holds the "draw" calls.
Canvas.EdgeType
Canvas.VertexMode
CaptioningManager	Contains methods for accessing and monitoring preferred video captioning state and visual properties.
CaptioningManager.CaptioningChangeListener	Listener for changes in captioning properties, including enabled state and user style preferences.
CaptioningManager.CaptionStyle	Specifies visual properties for video captions, including foreground and background colors, edge properties, and typeface.
CaptivePortal	A class allowing apps handling the `ACTION_CAPTIVE_PORTAL_SIGN_IN` activity to indicate to the system different outcomes of captive portal sign in.
CaptureFailure	A report of failed capture for a single image capture from the image sensor.
CaptureRequest	An immutable package of settings and outputs needed to capture a single image from the camera device.
CaptureRequest.Builder	A builder for capture requests.
CaptureRequest.Key<T>	A `Key` is used to do capture request field lookups with `get(CaptureResult.Key)` or to set fields with `set(Key, Object)`.
CaptureResult	The subset of the results of a single image capture from the image sensor.
CaptureResult.Key<T>	A `Key` is used to do capture result field lookups with `get(CaptureResult.Key)`.
CardEmulation	This class can be used to query the state of NFC card emulation services.
CardView	A FrameLayout with a rounded corner background and shadow.
CarrierConfigManager	Provides access to telephony configuration values that are carrier-specific.
CarrierIdentifier	Used to pass info to CarrierConfigService implementations so they can decide what values to return.
CarrierMessagingService	A service that receives calls from the system when new SMS and MMS are sent or received.
CarrierMessagingService.ResultCallback<T>	A callback interface used to provide results asynchronously.
CarrierMessagingService.SendMmsResult	The result of sending an MMS.
CarrierMessagingService.SendMultipartSmsResult	The result of sending a multipart SMS.
CarrierMessagingService.SendSmsResult	The result of sending an SMS.
CarrierService	A service that exposes carrier-specific functionality to the system.
CDATASection	CDATA sections are used to escape blocks of text containing characters that would otherwise be regarded as markup.
CdmaCellLocation	Represents the cell location on a CDMA phone.
CellIdentityCdma	CellIdentity is to represent a unique CDMA cell
CellIdentityGsm	CellIdentity to represent a unique GSM cell
CellIdentityLte	CellIdentity is to represent a unique LTE cell
CellIdentityWcdma	CellIdentity to represent a unique UMTS cell
CellInfo	Immutable cell information from a point in time.
CellInfoCdma	Immutable cell information from a point in time.
CellInfoGsm	Immutable cell information from a point in time.
CellInfoLte	Immutable cell information from a point in time.
CellInfoWcdma	Immutable cell information from a point in time.
CellLocation	Abstract class that represents the location of the device.
CellSignalStrength	Abstract base class for cell phone signal strength related information.
CellSignalStrengthCdma	Signal strength related information.
CellSignalStrengthGsm	GSM signal strength related information.
CellSignalStrengthLte	LTE signal strength related information.
CellSignalStrengthWcdma	Wcdma signal strength related information.
Certificate	This interface was deprecated in API level 1. A new certificate handling package is created in the Java platform. This Certificate interface is entirely deprecated and is here to allow for a smooth transition to the new package.
Certificate	Abstract class for managing a variety of identity certificates.
Certificate	Abstract class for managing a variety of identity certificates.
Certificate.CertificateRep	Alternate Certificate class for serialization.
CertificateEncodingException	Certificate Encoding Exception.
CertificateEncodingException	Certificate Encoding Exception.
CertificateException	This exception indicates one of a variety of certificate problems.
CertificateException	This exception indicates one of a variety of certificate problems.
CertificateExpiredException	Certificate Expired Exception.
CertificateExpiredException	Certificate Expired Exception.
CertificateFactory	This class defines the functionality of a certificate factory, which is used to generate certificate, certification path (`CertPath`) and certificate revocation list (CRL) objects from their encodings.
CertificateFactorySpi	This class defines the Service Provider Interface (SPI) for the `CertificateFactory` class.
CertificateNotYetValidException	Certificate is not yet valid exception.
CertificateNotYetValidException	Certificate is not yet valid exception.
CertificateParsingException	Certificate Parsing Exception.
CertificateParsingException	Certificate Parsing Exception.
CertificateRevokedException	An exception that indicates an X.509 certificate is revoked.
CertPath	An immutable sequence of certificates (a certification path).
CertPath.CertPathRep	Alternate `CertPath` class for serialization.
CertPathBuilder	A class for building certification paths (also known as certificate chains).
CertPathBuilderException	An exception indicating one of a variety of problems encountered when building a certification path with a `CertPathBuilder`.
CertPathBuilderResult	A specification of the result of a certification path builder algorithm.
CertPathBuilderSpi	The Service Provider Interface (SPI) for the `CertPathBuilder` class.
CertPathChecker	Performs one or more checks on each `Certificate` of a `CertPath`.
CertPathParameters	A specification of certification path algorithm parameters.
CertPathTrustManagerParameters	A wrapper for CertPathParameters.
CertPathValidator	A class for validating certification paths (also known as certificate chains).
CertPathValidatorException	An exception indicating one of a variety of problems encountered when validating a certification path.
CertPathValidatorException.BasicReason	The BasicReason enumerates the potential reasons that a certification path of any type may be invalid.
CertPathValidatorException.Reason	The reason the validation algorithm failed.
CertPathValidatorResult	A specification of the result of a certification path validator algorithm.
CertPathValidatorSpi	The Service Provider Interface (SPI) for the `CertPathValidator` class.
CertSelector	A selector that defines a set of criteria for selecting `Certificate`s.
CertStore	A class for retrieving `Certificate`s and `CRL`s from a repository.
CertStoreException	An exception indicating one of a variety of problems retrieving certificates and CRLs from a `CertStore`.
CertStoreParameters	A specification of `CertStore` parameters.
CertStoreSpi	The Service Provider Interface (SPI) for the `CertStore` class.
ChangeBounds	This transition captures the layout bounds of target views before and after the scene change and animates those changes during the transition.
ChangeClipBounds	ChangeClipBounds captures the `getClipBounds()` before and after the scene change and animates those changes during the transition.
ChangeImageTransform	This Transition captures an ImageView's matrix before and after the scene change and animates it during the transition.
ChangeScroll	This transition captures the scroll properties of targets before and after the scene change and animates any changes.
ChangeTransform	This Transition captures scale and rotation for Views before and after the scene change and animates those changes during the transition.
Channel	A nexus for I/O operations.
Channels	Utility methods for channels and streams.
Character	The `Character` class wraps a value of the primitive type `char` in an object.
Character.Subset	Instances of this class represent particular subsets of the Unicode character set.
Character.UnicodeBlock	A family of character subsets representing the character blocks in the Unicode specification.
Character.UnicodeScript	A family of character subsets representing the character scripts defined in the Unicode Standard Annex #24: Script Names.
CharacterCodingException	Checked exception thrown when a character encoding or decoding error occurs.
CharacterData	The `CharacterData` interface extends Node with a set of attributes and methods for accessing character data in the DOM.
CharacterIterator	This interface defines a protocol for bidirectional iteration over text.
CharacterPickerDialog	Dialog for choosing accented characters related to a base character.
CharacterStyle	The classes that affect character-level text formatting extend this class.
CharArrayBuffer	This is used for `copyStringToBuffer(int, CharArrayBuffer)`
CharArrayReader	This class implements a character buffer that can be used as a character-input stream.
CharArrayWriter	This class implements a character buffer that can be used as an Writer.
CharBuffer	A char buffer.
CharConversionException	Base class for character conversion exceptions.
CharSequence	A `CharSequence` is a readable sequence of `char` values.
Charset	A named mapping between sequences of sixteen-bit Unicode code units and sequences of bytes.
CharsetDecoder	An engine that can transform a sequence of bytes in a specific charset into a sequence of sixteen-bit Unicode characters.
CharsetEncoder	An engine that can transform a sequence of sixteen-bit Unicode characters into a sequence of bytes in a specific charset.
CharsetProvider	Charset service-provider class.
Checkable	Defines an extension for views that make them checkable.
CheckBox	A checkbox is a specific type of two-states button that can be either checked or unchecked.
CheckBoxPreference	A `Preference` that provides checkbox widget functionality.
CheckBoxPreference	A `Preference` that provides checkbox widget functionality.
CheckedInputStream	An input stream that also maintains a checksum of the data being read.
CheckedOutputStream	An output stream that also maintains a checksum of the data being written.
CheckedTextView	An extension to `TextView` that supports the `Checkable` interface and displays.
CheckResult	Denotes that the annotated method returns a result that it typically is an error to ignore.
Checksum	An interface representing a data checksum.
ChineseCalendar	`ChineseCalendar` is a concrete subclass of `Calendar` that implements a traditional Chinese calendar.
ChoiceFormat	A `ChoiceFormat` allows you to attach a format to a range of numbers.
ChooserTarget	A ChooserTarget represents a deep-link into an application as returned by a `ChooserTargetService`.
ChooserTargetService	A service that receives calls from the system when the user is asked to choose a target for an intent explicitly by another app.
Choreographer	Coordinates the timing of animations, input and drawing.
Choreographer.FrameCallback	Implement this interface to receive a callback when a new display frame is being rendered.
Chronometer	Class that implements a simple timer.
Chronometer.OnChronometerTickListener	A callback that notifies when the chronometer has incremented on its own.
Cipher	This class provides the functionality of a cryptographic cipher for encryption and decryption.
CipherInputStream	A CipherInputStream is composed of an InputStream and a Cipher so that read() methods return data that are read in from the underlying InputStream but have been additionally processed by the Cipher.
CipherOutputStream	A CipherOutputStream is composed of an OutputStream and a Cipher so that write() methods first process the data before writing them out to the underlying OutputStream.
CipherSpi	This class defines the Service Provider Interface (SPI) for the `Cipher` class.
CircularArray<E>	CircularArray is a generic circular array data structure that provides O(1) random read, O(1) prepend and O(1) append.
CircularIntArray	CircularIntArray is a circular integer array data structure that provides O(1) random read, O(1) prepend and O(1) append.
CircularPropagation	A propagation that varies with the distance to the epicenter of the Transition or center of the scene if no epicenter exists.
Class<T>	Instances of the class `Class` represent classes and interfaces in a running Java application.
ClassCastException	Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance.
ClassCircularityError	Thrown when the Java Virtual Machine detects a circularity in the superclass hierarchy of a class being loaded.
ClassFormatError	Thrown when the Java Virtual Machine attempts to read a class file and determines that the file is malformed or otherwise cannot be interpreted as a class file.
ClassLoader	A class loader is an object that is responsible for loading classes.
ClassNotFoundException	Thrown when an application tries to load in a class through its string name using: The `forName` method in class `Class`.
ClassPresenterSelector	A ClassPresenterSelector selects a `Presenter` based on the item's Java class.
ClickableSpan	If an object of this type is attached to the text of a TextView with a movement method of LinkMovementMethod, the affected spans of text can be selected.
ClientCertRequest	ClientCertRequest: The user receives an instance of this class as a parameter of `onReceivedClientCertRequest(WebView, ClientCertRequest)`.
ClientInfoStatus	Enumeration for status of the reason that a property could not be set via a call to `Connection.setClientInfo`
ClipboardManager	Interface to the clipboard service, for placing and retrieving text in the global clipboard.
ClipboardManager	This class was deprecated in API level 11. Old text-only interface to the clipboard. See `ClipboardManager` for the modern API.
ClipboardManager.OnPrimaryClipChangedListener	Defines a listener callback that is invoked when the primary clip on the clipboard changes.
ClipData	Representation of a clipped data on the clipboard.
ClipData.Item	Description of a single item in a ClipData.
ClipDescription	Meta-data describing the contents of a `ClipData`.
ClipDrawable	A Drawable that clips another Drawable based on this Drawable's current level value.
Clob	The mapping in the Java^TM programming language for the SQL `CLOB` type.
Cloneable	A class implements the `Cloneable` interface to indicate to the `clone()` method that it is legal for that method to make a field-for-field copy of instances of that class.
CloneNotSupportedException	Thrown to indicate that the `clone` method in class `Object` has been called to clone an object, but that the object's class does not implement the `Cloneable` interface.
Closeable	A `Closeable` is a source or destination of data that can be closed.
ClosedByInterruptException	Checked exception received by a thread when another thread interrupts it while it is blocked in an I/O operation upon a channel.
ClosedChannelException	Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.
ClosedSelectorException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a closed selector.
CoderMalfunctionError	Error thrown when the `decodeLoop` method of a `CharsetDecoder`, or the `encodeLoop` method of a `CharsetEncoder`, throws an unexpected exception.
CoderResult	A description of the result state of a coder.
CodeSigner	This class encapsulates information about a code signer.
CodeSource	Legacy security code; do not use.
CodingErrorAction	A typesafe enumeration for coding-error actions.
CollapsibleActionView	When a `View` implements this interface it will receive callbacks when expanded or collapsed as an action view alongside the optional, app-specified callbacks to `MenuItemCompat.OnActionExpandListener`.
CollapsibleActionView	When a `View` implements this interface it will receive callbacks when expanded or collapsed as an action view alongside the optional, app-specified callbacks to `MenuItem.OnActionExpandListener`.
CollapsingToolbarLayout	CollapsingToolbarLayout is a wrapper for `Toolbar` which implements a collapsing app bar.
CollapsingToolbarLayout.LayoutParams
CollationElementIterator	`CollationElementIterator` is an iterator created by a RuleBasedCollator to walk through a string.
CollationElementIterator	The `CollationElementIterator` class is used as an iterator to walk through each character of an international string.
CollationKey	A `CollationKey` represents a `String` under the rules of a specific `Collator` object.
CollationKey	A `CollationKey` represents a `String` under the rules of a specific `Collator` object.
CollationKey.BoundMode	Options that used in the API CollationKey.getBound() for getting a CollationKey based on the bound mode requested.
Collator	[icu enhancement] ICU's replacement for `Collator`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
Collator	The `Collator` class performs locale-sensitive `String` comparison.
Collator.ReorderCodes	Reordering codes for non-script groups that can be reordered under collation.
Collection<E>	The root interface in the collection hierarchy.
CollectionCertStoreParameters	Parameters used as input for the Collection `CertStore` algorithm.
Collections	This class consists exclusively of static methods that operate on or return collections.
Collector<T, A, R>	A mutable reduction operation that accumulates input elements into a mutable result container, optionally transforming the accumulated result into a final representation after all input elements have been processed.
Collector.Characteristics	Characteristics indicating properties of a `Collector`, which can be used to optimize reduction implementations.
Collectors	Implementations of `Collector` that implement various useful reduction operations, such as accumulating elements into collections, summarizing elements according to various criteria, etc.
Color	The Color class defines methods for creating and converting color ints.
ColorDrawable	A specialized Drawable that fills the Canvas with a specified color.
ColorFilter	A color filter can be used with a `Paint` to modify the color of each pixel drawn with that paint.
ColorFilterCache	Cache of `ColorFilter`s for a given color at different alpha levels.
ColorFilterDimmer	Helper class for applying a dim level to a View.
ColorInt	Denotes that the annotated element represents a packed color int, `AARRGGBB`.
ColorMatrix	4x5 matrix for transforming the color and alpha components of a Bitmap.
ColorMatrixColorFilter	A color filter that transforms colors through a 4x5 color matrix.
ColorOverlayDimmer	Helper class for assigning a dim color to Paint.
ColorRes	Denotes that an integer parameter, field or method return value is expected to be a color resource reference (e.g.
ColorSpaceTransform	Immutable class for describing a 3x3 matrix of `Rational` values in row-major order.
ColorStateList	Lets you map `View` state sets to colors.
ColorUtils	A set of color-related utility methods, building upon those available in `Color`.
Comment	This interface inherits from `CharacterData` and represents the content of a comment, i.e., all the characters between the starting ' `<!--`' and ending '`-->`'.
CommonDataSource	Interface that defines the methods which are common between `DataSource`, `XADataSource` and `ConnectionPoolDataSource`.
CompactDecimalFormat	The CompactDecimalFormat produces abbreviated numbers, suitable for display in environments will limited real estate.
CompactDecimalFormat.CompactStyle	Style parameter for CompactDecimalFormat.
Comparable<T>	This interface imposes a total ordering on the objects of each class that implements it.
Comparator<T>	A comparison function, which imposes a total ordering on some collection of objects.
ComparisonFailure	This class was deprecated in API level 16. use junit.framework.ComparisonFailure
ComparisonFailure	Thrown when an assert equals for Strings failed.
Compiler	Does nothing on Android.
CompletableFuture<T>	A `Future` that may be explicitly completed (setting its value and status), and may be used as a `CompletionStage`, supporting dependent functions and actions that trigger upon its completion.
CompletableFuture.AsynchronousCompletionTask	A marker interface identifying asynchronous tasks produced by `async` methods.
CompletionException	Exception thrown when an error or other exception is encountered in the course of completing a result or task.
CompletionInfo	Information about a single text completion that an editor has reported to an input method.
CompletionService<V>	A service that decouples the production of new asynchronous tasks from the consumption of the results of completed tasks.
CompletionStage<T>	A stage of a possibly asynchronous computation, that performs an action or computes a value when another CompletionStage completes.
ComponentCallbacks	The set of callback APIs that are common to all application components (`Activity`, `Service`, `ContentProvider`, and `Application`).
ComponentCallbacks2	Extended `ComponentCallbacks` interface with a new callback for finer-grained memory management.
ComponentInfo	Base class containing information common to all application components (`ActivityInfo`, `ServiceInfo`).
ComponentName	Identifier for a specific application component (`Activity`, `Service`, `BroadcastReceiver`, or `ContentProvider`) that is available.
ComposePathEffect
ComposeShader	A subclass of shader that returns the composition of two other shaders, combined by an `Xfermode` subclass.
CompoundButton	A button with two states, checked and unchecked.
CompoundButton.OnCheckedChangeListener	Interface definition for a callback to be invoked when the checked state of a compound button changed.
CompoundButtonCompat	Helper for accessing `CompoundButton` methods introduced after API level 4 in a backwards compatible fashion.
ConcurrentHashMap<K, V>	A hash table supporting full concurrency of retrievals and high expected concurrency for updates.
ConcurrentHashMap.KeySetView<K, V>	A view of a ConcurrentHashMap as a `Set` of keys, in which additions may optionally be enabled by mapping to a common value.
ConcurrentLinkedDeque<E>	An unbounded concurrent deque based on linked nodes.
ConcurrentLinkedQueue<E>	An unbounded thread-safe queue based on linked nodes.
ConcurrentMap<K, V>	A `Map` providing thread safety and atomicity guarantees.
ConcurrentModificationException	This exception may be thrown by methods that have detected concurrent modification of an object when such modification is not permissible.
ConcurrentNavigableMap<K, V>	A `ConcurrentMap` supporting `NavigableMap` operations, and recursively so for its navigable sub-maps.
ConcurrentSkipListMap<K, V>	A scalable concurrent `ConcurrentNavigableMap` implementation.
ConcurrentSkipListSet<E>	A scalable concurrent `NavigableSet` implementation based on a `ConcurrentSkipListMap`.
Condition	The current condition of an `AutomaticZenRule`, provided by the `ConditionProviderService` that owns the rule.
Condition	`Condition` factors out the `Object` monitor methods (`wait`, `notify` and `notifyAll`) into distinct objects to give the effect of having multiple wait-sets per object, by combining them with the use of arbitrary `Lock` implementations.
ConditionProviderService	A service that provides conditions about boolean state.
ConditionVariable	Class that implements the condition variable locking paradigm.
Conference	Represents a conference call which can contain any number of `Connection` objects.
Conferenceable	Interface used to identify entities with which another entity can participate in a conference call with.
Config	This class was deprecated in API level 14. This class is not useful, it just returns the same value for all constants, and has always done this. Do not use it.
Configuration	This class describes all device configuration information that can impact the resources the application retrieves.
ConfigurationHelper	Helper class which allows access to properties of `Configuration` in a backward compatible fashion.
ConfigurationInfo	Information you can retrieve about hardware configuration preferences declared by an application.
ConfigurationStats	Represents the usage statistics of a device `Configuration` for a specific time range.
ConnectException	Signals that an error occurred while attempting to connect a socket to a remote address and port.
Connection	Represents a phone call or connection to a remote endpoint that carries voice and/or video traffic.
Connection	A connection (session) with a specific database.
Connection.VideoProvider	Provides a means of controlling the video session associated with a `Connection`.
ConnectionEvent	An `Event` object that provides information about the source of a connection-related event.
ConnectionEventListener	An object that registers to be notified of events generated by a `PooledConnection` object.
ConnectionPendingException	Unchecked exception thrown when an attempt is made to connect a `SocketChannel` for which a non-blocking connection operation is already in progress.
ConnectionPoolDataSource	A factory for `PooledConnection` objects.
ConnectionRequest	Simple data container encapsulating a request to some entity to create a new `Connection`.
ConnectionService	An abstract service that should be implemented by any apps which can make phone calls (VoIP or otherwise) and want those calls to be integrated into the built-in phone app.
ConnectivityManager	Class that answers queries about the state of network connectivity.
ConnectivityManager.NetworkCallback	Base class for NetworkRequest callbacks.
ConnectivityManager.OnNetworkActiveListener	Callback for use with `addDefaultNetworkActiveListener(ConnectivityManager.OnNetworkActiveListener)` to find out when the system default network has gone in to a high power state.
ConnectivityManagerCompat	Helper for accessing features in `ConnectivityManager` introduced after API level 16 in a backwards compatible fashion.
ConnectTimeoutException	This class was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
Console	Methods to access the character-based console device, if any, associated with the current Java virtual machine.
ConsoleHandler	This `Handler` publishes log records to `System.err`.
ConsoleMessage	Public class representing a JavaScript console message from WebCore.
ConsoleMessage.MessageLevel
Constructor<T>	`Constructor` provides information about, and access to, a single constructor for a class.
Consumer<T>	Represents an operation that accepts a single input argument and returns no result.
ConsumerIrManager	Class that operates consumer infrared on the device.
ConsumerIrManager.CarrierFrequencyRange	Represents a range of carrier frequencies (inclusive) on which the infrared transmitter can transmit
Contacts	This class was deprecated in API level 5. The APIs have been superseded by `ContactsContract`. The newer APIs allow access multiple accounts and support aggregation of similar contacts. These APIs continue to work but will only return data for the first Google account created, which matches the original behavior.
Contacts.ContactMethods	This class was deprecated in API level 5. see `ContactsContract`
Contacts.ContactMethodsColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Extensions	This class was deprecated in API level 5. see `ContactsContract`
Contacts.ExtensionsColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.GroupMembership	This class was deprecated in API level 5. see `ContactsContract`
Contacts.Groups	This class was deprecated in API level 5. see `ContactsContract`
Contacts.GroupsColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Intents	This class was deprecated in API level 5. see `ContactsContract`
Contacts.Intents.Insert	This class was deprecated in API level 5. see `ContactsContract`
Contacts.Intents.UI	This class was deprecated in API level 5. Do not use. This is not supported.
Contacts.OrganizationColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Organizations	This class was deprecated in API level 5. see `ContactsContract`
Contacts.People	This class was deprecated in API level 5. see `ContactsContract`
Contacts.People.ContactMethods	This class was deprecated in API level 5. see `ContactsContract`
Contacts.People.Extensions	This class was deprecated in API level 5. see `ContactsContract`
Contacts.People.Phones	This class was deprecated in API level 5. see `ContactsContract`
Contacts.PeopleColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Phones	This class was deprecated in API level 5. see `ContactsContract`
Contacts.PhonesColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Photos	This class was deprecated in API level 5. see `ContactsContract`
Contacts.PhotosColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.PresenceColumns	This interface was deprecated in API level 5. see `ContactsContract`
Contacts.Settings	This class was deprecated in API level 5. see `ContactsContract`
Contacts.SettingsColumns	This interface was deprecated in API level 5. see `ContactsContract`
ContactsContract	The contract between the contacts provider and applications.
ContactsContract.AggregationExceptions	Constants for the contact aggregation exceptions table, which contains aggregation rules overriding those used by automatic aggregation.
ContactsContract.BaseSyncColumns	Generic columns for use by sync adapters.
ContactsContract.CommonDataKinds	Container for definitions of common data types stored in the `ContactsContract.Data` table.
ContactsContract.CommonDataKinds.BaseTypes	The base types that all "Typed" data kinds support.
ContactsContract.CommonDataKinds.Callable	Convenient functionalities for "callable" data.
ContactsContract.CommonDataKinds.CommonColumns	Columns common across the specific types.
ContactsContract.CommonDataKinds.Contactables	A special class of data items, used to refer to types of data that can be used to attempt to start communicating with a person (`ContactsContract.CommonDataKinds.Phone` and `ContactsContract.CommonDataKinds.Email`).
ContactsContract.CommonDataKinds.Email	A data kind representing an email address.
ContactsContract.CommonDataKinds.Event	A data kind representing an event.
ContactsContract.CommonDataKinds.GroupMembership	Group Membership.
ContactsContract.CommonDataKinds.Identity	A data kind representing an Identity related to the contact.
ContactsContract.CommonDataKinds.Im	A data kind representing an IM address You can use all columns defined for `ContactsContract.Data` as well as the following aliases.
ContactsContract.CommonDataKinds.Nickname	A data kind representing the contact's nickname.
ContactsContract.CommonDataKinds.Note	Notes about the contact.
ContactsContract.CommonDataKinds.Organization	A data kind representing an organization.
ContactsContract.CommonDataKinds.Phone	A data kind representing a telephone number.
ContactsContract.CommonDataKinds.Photo	A data kind representing a photo for the contact.
ContactsContract.CommonDataKinds.Relation	A data kind representing a relation.
ContactsContract.CommonDataKinds.SipAddress	A data kind representing a SIP address for the contact.
ContactsContract.CommonDataKinds.StructuredName	A data kind representing the contact's proper name.
ContactsContract.CommonDataKinds.StructuredPostal	A data kind representing a postal addresses.
ContactsContract.CommonDataKinds.Website	A data kind representing a website related to the contact.
ContactsContract.ContactNameColumns	Contact name and contact name metadata columns in the RawContacts table.
ContactsContract.ContactOptionsColumns	Columns of `ContactsContract.Contacts` that track the user's preferences for, or interactions with, the contact.
ContactsContract.Contacts	Constants for the contacts table, which contains a record per aggregate of raw contacts representing the same person.
ContactsContract.Contacts.AggregationSuggestions	A read-only sub-directory of a single contact aggregate that contains all aggregation suggestions (other contacts).
ContactsContract.Contacts.AggregationSuggestions.Builder	A convenience builder for aggregation suggestion content URIs.
ContactsContract.Contacts.Data	A sub-directory of a single contact that contains all of the constituent raw contact `ContactsContract.Data` rows.
ContactsContract.Contacts.Entity	A sub-directory of a contact that contains all of its `ContactsContract.RawContacts` as well as `ContactsContract.Data` rows.
ContactsContract.Contacts.Photo	A read-only sub-directory of a single contact that contains the contact's primary photo.
ContactsContract.ContactsColumns	Columns of `ContactsContract.Contacts` that refer to intrinsic properties of the contact, as opposed to the user-specified options found in `ContactsContract.ContactOptionsColumns`.
ContactsContract.ContactStatusColumns
ContactsContract.Data	Constants for the data table, which contains data points tied to a raw contact.
ContactsContract.DataColumns	Columns in the Data table.
ContactsContract.DataColumnsWithJoins	Combines all columns returned by `ContactsContract.Data` table queries.
ContactsContract.DataUsageFeedback	API allowing applications to send usage information for each `ContactsContract.Contacts.Data` row to the Contacts Provider.
ContactsContract.DataUsageStatColumns	Columns in the Data_Usage_Stat table
ContactsContract.DeletedContacts	Constants for the deleted contact table.
ContactsContract.DeletedContactsColumns
ContactsContract.Directory	A Directory represents a contacts corpus, e.g.
ContactsContract.DisplayNameSources	Types of data used to produce the display name for a contact.
ContactsContract.DisplayPhoto	Helper class for accessing full-size photos by photo file ID.
ContactsContract.FullNameStyle	Constants for various styles of combining given name, family name etc into a full name.
ContactsContract.Groups	Constants for the groups table.
ContactsContract.GroupsColumns
ContactsContract.Intents	Contains helper classes used to create or manage `Intents` that involve contacts.
ContactsContract.Intents.Insert	Convenience class that contains string constants used to create contact `Intents`.
ContactsContract.PhoneLookup	A table that represents the result of looking up a phone number, for example for caller ID.
ContactsContract.PhoneLookupColumns
ContactsContract.PhoneticNameStyle	Constants for various styles of capturing the pronunciation of a person's name.
ContactsContract.PinnedPositions	Contact-specific information about whether or not a contact has been pinned by the user at a particular position within the system contact application's user interface.
ContactsContract.Presence	This class was deprecated in API level 5. This old name was never meant to be made public. Do not use.
ContactsContract.PresenceColumns	Additional data mixed in with `ContactsContract.StatusColumns` to link back to specific `_ID` entries.
ContactsContract.Profile	Constants for the user's profile data, which is represented as a single contact on the device that represents the user.
ContactsContract.ProfileSyncState	A table provided for sync adapters to use for storing private sync state data for the user's personal profile.
ContactsContract.ProviderStatus	API for inquiring about the general status of the provider.
ContactsContract.QuickContact	Helper methods to display QuickContact dialogs that display all the information belonging to a specific `Contacts` entry.
ContactsContract.RawContacts	Constants for the raw contacts table, which contains one row of contact information for each person in each synced account.
ContactsContract.RawContacts.Data	A sub-directory of a single raw contact that contains all of its `ContactsContract.Data` rows.
ContactsContract.RawContacts.DisplayPhoto	A sub-directory of a single raw contact that represents its primary display photo.
ContactsContract.RawContacts.Entity	A sub-directory of a single raw contact that contains all of its `ContactsContract.Data` rows.
ContactsContract.RawContactsColumns
ContactsContract.RawContactsEntity	Constants for the raw contacts entities table, which can be thought of as an outer join of the raw_contacts table with the data table.
ContactsContract.SearchSnippets	Additional column returned by `Contacts.CONTENT_FILTER_URI` explaining why the filter matched the contact.
ContactsContract.Settings	Contacts-specific settings for various `Account`'s.
ContactsContract.SettingsColumns
ContactsContract.StatusColumns	Social status update columns.
ContactsContract.StatusUpdates	A status update is linked to a `ContactsContract.Data` row and captures the user's latest status update via the corresponding source, e.g.
ContactsContract.SyncColumns	Columns that appear when each row of a table belongs to a specific account, including sync information that an account may need.
ContactsContract.SyncState	A table provided for sync adapters to use for storing private sync state data for contacts.
ContentHandler	The abstract class `ContentHandler` is the superclass of all classes that read an `Object` from a `URLConnection`.
ContentHandler	Receive notification of the logical content of a document.
ContentHandlerFactory	This interface defines a factory for content handlers.
ContentLoadingProgressBar	ContentLoadingProgressBar implements a ProgressBar that waits a minimum time to be dismissed before showing.
ContentObservable	A specialization of `Observable` for `ContentObserver` that provides methods for sending notifications to a list of `ContentObserver` objects.
ContentObserver	Receives call backs for changes to content.
ContentProvider	Content providers are one of the primary building blocks of Android applications, providing content to applications.
ContentProvider.PipeDataWriter<T>	Interface to write a stream of data to a pipe.
ContentProviderClient	The public interface object used to interact with a specific `ContentProvider`.
ContentProviderOperation	Represents a single operation to be performed as part of a batch of operations.
ContentProviderOperation.Builder	Used to add parameters to a `ContentProviderOperation`.
ContentProviderResult	Contains the result of the application of a `ContentProviderOperation`.
ContentQueryMap	Caches the contents of a cursor into a Map of String->ContentValues and optionally keeps the cache fresh by registering for updates on the content backing the cursor.
ContentRecommendation	The ContentRecommendation object encapsulates all application provided data for a single content recommendation item.
ContentRecommendation.Builder	Builder class for `ContentRecommendation` objects.
ContentRecommendation.ContentMaturity
ContentRecommendation.ContentPricing
ContentRecommendation.ContentStatus
ContentRecommendation.ContentType
ContentRecommendation.IntentData	Object used to encapsulate the data to be used to build the `PendingIntent` object associated with a given content recommendation, at the time this recommendation gets posted to the home Screen.
ContentRecommendation.IntentType
ContentResolver	This class provides applications access to the content model.
ContentResolverCompat	Helper for accessing features in `ContentResolver` introduced after API level 4 in a backwards compatible fashion.
ContentUris	Utility methods useful for working with `Uri` objects that use the "content" (content://) scheme.
ContentValues	This class is used to store a set of values that the `ContentResolver` can process.
Context	Interface to global information about an application environment.
ContextCompat	Helper for accessing features in `Context` introduced after API level 4 in a backwards compatible fashion.
ContextMenu	Extension of `Menu` for context menus providing functionality to modify the header of the context menu.
ContextMenu.ContextMenuInfo	Additional information regarding the creation of the context menu.
ContextThemeWrapper	A context wrapper that allows you to modify or replace the theme of the wrapped context.
ContextWrapper	Proxying implementation of Context that simply delegates all of its calls to another Context.
ControlButtonPresenterSelector	Displays primary and secondary controls for a `PlaybackControlsRow`.
CookieHandler	A CookieHandler object provides a callback mechanism to hook up a HTTP state management policy implementation into the HTTP protocol handler.
CookieManager	Manages the cookies used by an application's `WebView` instances.
CookieManager	CookieManager provides a concrete implementation of `CookieHandler`, which separates the storage of cookies from the policy surrounding accepting and rejecting cookies.
CookiePolicy	CookiePolicy implementations decide which cookies should be accepted and which should be rejected.
CookieStore	A CookieStore object represents a storage for cookie.
CookieSyncManager	This class was deprecated in API level 21. The WebView now automatically syncs cookies as necessary. You no longer need to create or use the CookieSyncManager. To manually force a sync you can use the CookieManager method `flush()` which is a synchronous replacement for `sync()`.
CoordinatorLayout	CoordinatorLayout is a super-powered `FrameLayout`.
CoordinatorLayout.Behavior<V extends View>	Interaction behavior plugin for child views of `CoordinatorLayout`.
CoordinatorLayout.DefaultBehavior	Defines the default `CoordinatorLayout.Behavior` of a `View` class.
CoordinatorLayout.LayoutParams	Parameters describing the desired layout for a child of a `CoordinatorLayout`.
CoordinatorLayout.SavedState
CopticCalendar	Implement the Coptic calendar system.
CopyOnWriteArrayList<E>	A thread-safe random-access list.
CopyOnWriteArraySet<E>	A `Set` that uses an internal `CopyOnWriteArrayList` for all of its operations.
CoreConnectionPNames	This interface was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
CornerPathEffect
CorrectionInfo	Information about a single text correction that an editor has reported to an input method.
CountDownLatch	A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes.
CountDownTimer	Schedule a countdown until a time in the future, with regular notifications on intervals along the way.
CountedCompleter<T>	A `ForkJoinTask` with a completion action performed when triggered and there are no remaining pending actions.
CpuUsageInfo	CPU usage information per core.
CRC32	A class that can be used to compute the CRC-32 of a data stream.
Credentials	A class for representing UNIX credentials passed via ancillary data on UNIX domain sockets.
Criteria	A class indicating the application criteria for selecting a location provider.
CRL	This class is an abstraction of certificate revocation lists (CRLs) that have different formats but important common uses.
CRLException	CRL (Certificate Revocation List) Exception.
CRLReason	The CRLReason enumeration specifies the reason that a certificate is revoked, as defined in RFC 3280: Internet X.509 Public Key Infrastructure Certificate and CRL Profile.
CRLSelector	A selector that defines a set of criteria for selecting `CRL`s.
CrossProcessCursor	A cross process cursor is an extension of a `Cursor` that also supports usage from remote processes.
CrossProcessCursorWrapper	Cursor wrapper that implements `CrossProcessCursor`.
CryptoPrimitive	An enumeration of cryptographic primitives.
Currency	A class encapsulating a currency, as defined by ISO 4217.
Currency	Represents a currency.
Currency.CurrencyUsage	Currency Usage used for Decimal Format
CurrencyAmount	An amount of currency, consisting of a Number and a Currency.
CurrencyPluralInfo	This class represents the information needed by DecimalFormat to format currency plural, such as "3.00 US dollars" or "1.00 US dollar".
Cursor	This interface provides random read-write access to the result set returned by a database query.
CursorAdapter	Static library support version of the framework's `CursorAdapter`.
CursorAdapter	Adapter that exposes data from a `Cursor` to a `ListView` widget.
CursorAnchorInfo	Positional information about the text insertion point and characters in the composition string.
CursorAnchorInfo.Builder	Builder for `CursorAnchorInfo`.
CursorIndexOutOfBoundsException	An exception indicating that a cursor is out of bounds.
CursorJoiner	Does a join on two cursors using the specified columns.
CursorJoiner.Result	The result of a call to next().
CursorLoader	A loader that queries the `ContentResolver` and returns a `Cursor`.
CursorLoader	Static library support version of the framework's `CursorLoader`.
CursorMapper	Abstract class used to convert the current `Cursor` row to a single object.
CursorObjectAdapter	An `ObjectAdapter` implemented with a `Cursor`.
CursorTreeAdapter	An adapter that exposes data from a series of `Cursor`s to an `ExpandableListView` widget.
CursorWindow	A buffer containing multiple cursor rows.
CursorWrapper	Wrapper class for Cursor that delegates all calls to the actual cursor object.
CustomPrinterIconCallback	Callback for `onRequestCustomPrinterIcon(PrinterId, CancellationSignal, CustomPrinterIconCallback)`.
CustomTabsCallback	A callback class for custom tabs client to get messages regarding events in their custom tabs.
CustomTabsClient	Class to communicate with a `CustomTabsService` and create `CustomTabsSession` from it.
CustomTabsIntent	Class holding the `Intent` and start bundle for a Custom Tabs Activity.
CustomTabsIntent.Builder	Builder class for `CustomTabsIntent` objects.
CustomTabsService	Abstract service class for implementing Custom Tabs related functionality.
CustomTabsServiceConnection	Abstract `ServiceConnection` to use while binding to a `CustomTabsService`.
CustomTabsSession	A class to be used for Custom Tabs related communication.
CustomTabsSessionToken	Wrapper class that can be used as a unique identifier for a session.
CycleInterpolator	Repeats the animation for a specified number of cycles.
CyclicBarrier	A synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point.

D

DashPathEffect
DatabaseErrorHandler	An interface to let apps define an action to take when database corruption is detected.
DatabaseMetaData	Comprehensive information about the database as a whole.
DatabaseUtils	Static utility methods for dealing with databases and `Cursor`s.
DatabaseUtils.InsertHelper	This class was deprecated in API level 17. Use `SQLiteStatement` instead.
DatabaseUtilsCompat	Helper for accessing features in `DatabaseUtils` introduced after API level 4 in a backwards compatible fashion.
DataBindingComponent	This interface is generated during compilation to contain getters for all used instance BindingAdapters.
DataBindingUtil	Utility class to create `ViewDataBinding` from layouts.
DataFormatException	Signals that a data format error has occurred.
DatagramChannel	A selectable channel for datagram-oriented sockets.
DatagramPacket	This class represents a datagram packet.
DatagramSocket	This class represents a socket for sending and receiving datagram packets.
DatagramSocketImpl	Abstract datagram and multicast socket implementation base class.
DatagramSocketImplFactory	This interface defines a factory for datagram socket implementations.
DataInput	The `DataInput` interface provides for reading bytes from a binary stream and reconstructing from them data in any of the Java primitive types.
DataInputStream	A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
DataOutput	The `DataOutput` interface provides for converting data from any of the Java primitive types to a series of bytes and writing these bytes to a binary stream.
DataOutputStream	A data output stream lets an application write primitive Java data types to an output stream in a portable way.
DataSetObservable	A specialization of `Observable` for `DataSetObserver` that provides methods for sending notifications to a list of `DataSetObserver` objects.
DataSetObserver	Receives call backs when a data set has been changed, or made invalid.
DataSource	A factory for connections to the physical data source that this `DataSource` object represents.
DataTruncation	An exception thrown as a `DataTruncation` exception (on writes) or reported as a `DataTruncation` warning (on reads) when a data values is unexpectedly truncated for reasons other than its having execeeded `MaxFieldSize`.
DatatypeConfigurationException	Indicates a serious configuration error.
DatatypeConstants	Utility class to contain basic Datatype values as constants.
DatatypeConstants.Field	Type-safe enum class that represents six fields of the `Duration` class.
DatatypeFactory	Factory that creates new `javax.xml.datatype` `Object`s that map XML to/from Java `Object`s.
Date	A thin wrapper around a millisecond value that allows JDBC to identify this as an SQL `DATE` value.
Date	The class `Date` represents a specific instant in time, with millisecond precision.
DateFormat	[icu enhancement] ICU's replacement for `DateFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
DateFormat	Utility class for producing strings with formatted date/time.
DateFormat	`DateFormat` is an abstract class for date/time formatting subclasses which formats and parses dates or time in a language-independent manner.
DateFormat.BooleanAttribute	boolean attributes
DateFormat.Field	The instances of this inner class are used as attribute keys and values in AttributedCharacterIterator that DateFormat.formatToCharacterIterator() method returns.
DateFormat.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `DateFormat.formatToCharacterIterator` and as field identifiers in `FieldPosition`.
DateFormatSymbols	[icu enhancement] ICU's replacement for `DateFormatSymbols`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
DateFormatSymbols	`DateFormatSymbols` is a public class for encapsulating localizable date-time formatting data, such as the names of the months, the names of the days of the week, and the time zone data.
DateInterval	This class represents date interval.
DateIntervalFormat	DateIntervalFormat is a class for formatting and parsing date intervals in a language-independent manner.
DateIntervalInfo	DateIntervalInfo is a public class for encapsulating localizable date time interval patterns.
DateIntervalInfo.PatternInfo	PatternInfo class saves the first and second part of interval pattern, and whether the interval pattern is earlier date first.
DateKeyListener	For entering dates in a text field.
DatePicker	Provides a widget for selecting a date.
DatePicker.OnDateChangedListener	The callback used to indicate the user changed the date.
DatePickerDialog	A simple dialog containing an `DatePicker`.
DatePickerDialog.OnDateSetListener	The listener used to indicate the user has finished selecting a date.
DateSorter	Sorts dates into the following groups: Today Yesterday seven days ago one month ago older than a month ago
DateTimeKeyListener	For entering dates and times in the same text field.
DateTimePatternGenerator	This class provides flexible generation of date format patterns, like "yy-MM-dd".
DateTimePatternGenerator.PatternInfo	PatternInfo supplies output parameters for addPattern(...).
DateUtils	This class contains various date-related utilities for creating text for things like elapsed time and date ranges, strings for days of the week and months, and AM/PM text etc.
DeadObjectException	The object you are calling has died, because its hosting process no longer exists.
DeadSystemException	The core Android system has died and is going through a runtime restart.
Debug	Provides various debugging methods for Android applications, including tracing and allocation counts.
Debug.InstructionCount	This class was deprecated in API level 23. Instruction counting is no longer supported.
Debug.MemoryInfo	This class is used to retrieved various statistics about the memory mappings for this process.
DebugUtils	Various utilities for debugging and logging.
DecelerateInterpolator	An interpolator where the rate of change starts out quickly and and then decelerates.
DecimalFormat	[icu enhancement] ICU's replacement for `DecimalFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
DecimalFormat	`DecimalFormat` is a concrete subclass of `NumberFormat` that formats decimal numbers.
DecimalFormatSymbols	[icu enhancement] ICU's replacement for `DecimalFormatSymbols`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
DecimalFormatSymbols	This class represents the set of symbols (such as the decimal separator, the grouping separator, and so on) needed by `DecimalFormat` to format numbers.
DeclHandler	SAX2 extension handler for DTD declaration events.
DefaultDatabaseErrorHandler	Default class used to define the action to take when database corruption is reported by sqlite.
DefaultHandler	Default base class for SAX2 event handlers.
DefaultHandler2	This class extends the SAX2 base handler class to support the SAX2 `LexicalHandler`, `DeclHandler`, and `EntityResolver2` extensions.
DefaultItemAnimator	This implementation of `RecyclerView.ItemAnimator` provides basic animations on remove, add, and move events that happen to the items in a RecyclerView.
Deflater	This class provides support for general purpose compression using the popular ZLIB compression library.
DeflaterInputStream	Implements an input stream filter for compressing data in the "deflate" compression format.
DeflaterOutputStream	This class implements an output stream filter for compressing data in the "deflate" compression format.
Delayed	A mix-in style interface for marking objects that should be acted upon after a given delay.
DelayQueue<E extends Delayed>	An unbounded blocking queue of `Delayed` elements, in which an element can only be taken when its delay has expired.
DeniedByServerException	Exception thrown when the provisioning server or key server denies a certficate or license for a device.
Deprecated	A program element annotated @Deprecated is one that programmers are discouraged from using, typically because it is dangerous, or because a better alternative exists.
Deque<E>	A linear collection that supports element insertion and removal at both ends.
DESedeKeySpec	This class specifies a DES-EDE ("triple-DES") key.
DESKeySpec	This class specifies a DES key.
Destroyable	Objects such as credentials may optionally implement this interface to provide the capability to destroy its contents.
DestroyFailedException	Signals that a `destroy` operation failed.
DetailsFragment	A fragment for creating Leanback details screens.
DetailsOverviewLogoPresenter	Presenter that responsible to create a ImageView and bind to DetailsOverviewRow.
DetailsOverviewLogoPresenter.ViewHolder	ViewHolder for Logo view of DetailsOverviewRow.
DetailsOverviewRow	An overview `Row` for a details fragment.
DetailsOverviewRow.Listener	Listener for changes of DetailsOverviewRow.
DetailsOverviewRowPresenter	This class is deprecated. Use `FullWidthDetailsOverviewRowPresenter`
DetailsOverviewRowPresenter.ViewHolder	A ViewHolder for the DetailsOverviewRow.
DetailsSupportFragment	A fragment for creating Leanback details screens.
DeviceAdminInfo	This class is used to specify meta information of a device administrator component.
DeviceAdminReceiver	Base class for implementing a device administration component.
DevicePolicyManager	Public interface for managing policies enforced on a device.
DexClassLoader	A class loader that loads classes from `.jar` and `.apk` files containing a `classes.dex` entry.
DexFile	Manipulates DEX files.
DhcpInfo	A simple object for retrieving the results of a DHCP request.
DHGenParameterSpec	This class specifies the set of parameters used for generating Diffie-Hellman (system) parameters for use in Diffie-Hellman key agreement.
DHKey	The interface to a Diffie-Hellman key.
DHParameterSpec	This class specifies the set of parameters used with the Diffie-Hellman algorithm, as specified in PKCS #3: Diffie-Hellman Key-Agreement Standard.
DHPrivateKey	The interface to a Diffie-Hellman private key.
DHPrivateKeySpec	This class specifies a Diffie-Hellman private key with its associated parameters.
DHPublicKey	The interface to a Diffie-Hellman public key.
DHPublicKeySpec	This class specifies a Diffie-Hellman public key with its associated parameters.
DialerFilter
DialerKeyListener	For dialing-only text entry As for all implementations of `KeyListener`, this class is only concerned with hardware keyboards.
Dialog	Base class for Dialogs.
DialogFragment	A fragment that displays a dialog window, floating on top of its activity's window.
DialogFragment	Static library support version of the framework's `DialogFragment`.
DialogInterface
DialogInterface.OnCancelListener	Interface used to allow the creator of a dialog to run some code when the dialog is canceled.
DialogInterface.OnClickListener	Interface used to allow the creator of a dialog to run some code when an item on the dialog is clicked..
DialogInterface.OnDismissListener	Interface used to allow the creator of a dialog to run some code when the dialog is dismissed.
DialogInterface.OnKeyListener	Interface definition for a callback to be invoked when a key event is dispatched to this dialog.
DialogInterface.OnMultiChoiceClickListener	Interface used to allow the creator of a dialog to run some code when an item in a multi-choice dialog is clicked.
DialogInterface.OnShowListener	Interface used to allow the creator of a dialog to run some code when the dialog is shown.
DialogPreference	A base class for `Preference` objects that are dialog-based.
DialogPreference	A base class for `Preference` objects that are dialog-based.
DialogPreference.TargetFragment
Dictionary<K, V>	The `Dictionary` class is the abstract parent of any class, such as `Hashtable`, which maps keys to values.
DigestException	This is the generic Message Digest exception.
DigestInputStream	A transparent stream that updates the associated message digest using the bits going through the stream.
DigestOutputStream	A transparent stream that updates the associated message digest using the bits going through the stream.
DigitalClock	This class was deprecated in API level 17. It is recommended you use `TextClock` instead.
DigitsKeyListener	For digits-only text entry As for all implementations of `KeyListener`, this class is only concerned with hardware keyboards.
DimenRes	Denotes that an integer parameter, field or method return value is expected to be a dimension resource reference (e.g.
Dimension	Denotes that an integer parameter, field or method return value is expected to represent a dimension.
Dimension.Unit
DisconnectCause	Describes the cause of a disconnected call.
DiscretePathEffect
Display	Provides information about the size and density of a logical display.
Display.HdrCapabilities	Encapsulates the HDR capabilities of a given display.
Display.Mode	A mode supported by a given display.
DisplayContext	Display context settings.
DisplayContext.Type	Type values for DisplayContext
DisplayManager	Manages the properties of attached displays.
DisplayManager.DisplayListener	Listens for changes in available display devices.
DisplayManagerCompat	Helper for accessing features in `DisplayManager` introduced after API level 4 in a backwards compatible fashion.
DisplayMetrics	A structure describing general information about a display, such as its size, density, and font scaling.
DividerPresenter	DividerPresenter provides a default presentation for `DividerRow` in HeadersFragment.
DividerRow	Used to represent divider in HeadersFragment.
DngCreator	The `DngCreator` class provides functions to write raw pixel data as a DNG file.
Document	The `Document` interface represents the entire HTML or XML document.
DocumentBuilder	Defines the API to obtain DOM Document instances from an XML document.
DocumentBuilderFactory	Defines a factory API that enables applications to obtain a parser that produces DOM object trees from XML documents.
Documented	Indicates that annotations with a type are to be documented by javadoc and similar tools by default.
DocumentFile	Representation of a document backed by either a `DocumentsProvider` or a raw file on disk.
DocumentFragment	`DocumentFragment` is a "lightweight" or "minimal" `Document` object.
DocumentHandler	This interface was deprecated in API level 1. This interface has been replaced by the SAX2 `ContentHandler` interface, which includes Namespace support.
DocumentsContract	Defines the contract between a documents provider and the platform.
DocumentsContract.Document	Constants related to a document, including `Cursor` column names and flags.
DocumentsContract.Root	Constants related to a root of documents, including `Cursor` column names and flags.
DocumentsProvider	Base class for a document provider.
DocumentType	Each `Document` has a `doctype` attribute whose value is either `null` or a `DocumentType` object.
DomainCombiner	Legacy security code; do not use.
DOMConfiguration	The `DOMConfiguration` interface represents the configuration of a document and maintains a table of recognized parameters.
DOMError	`DOMError` is an interface that describes an error.
DOMErrorHandler	`DOMErrorHandler` is a callback interface that the DOM implementation can call when reporting errors that happens while processing XML data, or when doing some other processing (e.g.
DOMException	DOM operations only raise exceptions in "exceptional" circumstances, i.e., when an operation is impossible to perform (either for logical reasons, because data is lost, or because the implementation has become unstable).
DOMImplementation	The `DOMImplementation` interface provides a number of methods for performing operations that are independent of any particular instance of the document object model.
DOMImplementationList	The `DOMImplementationList` interface provides the abstraction of an ordered collection of DOM implementations, without defining or constraining how this collection is implemented.
DOMImplementationLS	`DOMImplementationLS` contains the factory methods for creating Load and Save objects.
DOMImplementationSource	This interface permits a DOM implementer to supply one or more implementations, based upon requested features and versions, as specified in .
DOMLocator	Indicates the position of a node in a source DOM, intended primarily for error reporting.
DOMLocator	`DOMLocator` is an interface that describes a location (e.g.
DOMResult	Acts as a holder for a transformation result tree in the form of a Document Object Model (DOM) tree.
DOMSource	Acts as a holder for a transformation Source tree in the form of a Document Object Model (DOM) tree.
DOMStringList	The `DOMStringList` interface provides the abstraction of an ordered collection of `DOMString` values, without defining or constraining how this collection is implemented.
Double	The `Double` class wraps a value of the primitive type `double` in an object.
Double2	Vector version of the basic double type.
Double2	Class for exposing the native RenderScript double2 type back to the Android system.
Double3	Vector version of the basic double type.
Double3	Class for exposing the native RenderScript double3 type back to the Android system.
Double4	Vector version of the basic double type.
Double4	Class for exposing the native RenderScript double4 type back to the Android system.
DoubleAccumulator	One or more variables that together maintain a running `double` value updated using a supplied function.
DoubleAdder	One or more variables that together maintain an initially zero `double` sum.
DoubleBinaryOperator	Represents an operation upon two `double`-valued operands and producing a `double`-valued result.
DoubleBuffer	A double buffer.
DoubleConsumer	Represents an operation that accepts a single `double`-valued argument and returns no result.
DoubleFunction<R>	Represents a function that accepts a double-valued argument and produces a result.
DoublePredicate	Represents a predicate (boolean-valued function) of one `double`-valued argument.
DoubleStream	A sequence of primitive double-valued elements supporting sequential and parallel aggregate operations.
DoubleStream.Builder	A mutable builder for a `DoubleStream`.
DoubleSummaryStatistics	A state object for collecting statistics such as count, min, max, sum, and average.
DoubleSupplier	Represents a supplier of `double`-valued results.
DoubleToIntFunction	Represents a function that accepts a double-valued argument and produces an int-valued result.
DoubleToLongFunction	Represents a function that accepts a double-valued argument and produces a long-valued result.
DoubleUnaryOperator	Represents an operation on a single `double`-valued operand that produces a `double`-valued result.
DownloadListener
DownloadManager	The download manager is a system service that handles long-running HTTP downloads.
DownloadManager.Query	This class may be used to filter download manager queries.
DownloadManager.Request	This class contains all the information necessary to request a new download.
DragAndDropPermissions	`DragAndDropPermissions` controls the access permissions for the content URIs associated with a `DragEvent`.
DragAndDropPermissionsCompat	Helper for accessing features in `DragAndDropPermissions` introduced after API level 13 in a backwards compatible fashion.
DragEvent	Represents an event that is sent out by the system at various times during a drag and drop operation.
DragStartHelper	DragStartHelper is a utility class for implementing drag and drop support.
DragStartHelper.OnDragStartListener	Interface definition for a callback to be invoked when a drag start gesture is detected.
Drawable	A Drawable is a general abstraction for "something that can be drawn." Most often you will deal with Drawable as the type of resource retrieved for drawing things to the screen; the Drawable class provides a generic API for dealing with an underlying visual resource that may take a variety of forms.
Drawable.Callback	Implement this interface if you want to create an animated drawable that extends `Drawable`.
Drawable.ConstantState	This abstract class is used by `Drawable`s to store shared constant state and data between Drawables.
DrawableCompat	Helper for accessing features in `Drawable` introduced after API level 4 in a backwards compatible fashion.
DrawableContainer	A helper class that contains several `Drawable`s and selects which one to use.
DrawableContainer.DrawableContainerState	A ConstantState that can contain several `Drawable`s.
DrawableMarginSpan
DrawableRes	Denotes that an integer parameter, field or method return value is expected to be a drawable resource reference (e.g.
DrawableWrapper	Drawable container with only one child element.
DrawerArrowDrawable	A drawable that can draw a "Drawer hamburger" menu or an arrow and animate between them.
DrawerLayout	DrawerLayout acts as a top-level container for window content that allows for interactive "drawer" views to be pulled out from one or both vertical edges of the window.
DrawerLayout.DrawerListener	Listener for monitoring events about drawers.
DrawerLayout.LayoutParams
DrawerLayout.SavedState	State persisted across instances
DrawerLayout.SimpleDrawerListener	Stub/no-op implementations of all methods of `DrawerLayout.DrawerListener`.
DrawFilter	A DrawFilter subclass can be installed in a Canvas.
DreamService	Extend this class to implement a custom dream (available to the user as a "Daydream").
Driver	The interface that every driver class must implement.
Driver	SAX2 Driver that pulls events from XmlPullParser and converts them into SAX2 callbacks.
DriverManager	The basic service for managing a set of JDBC drivers.
DriverPropertyInfo	Driver properties for making a connection.
DrmConvertedStatus	An entity class that wraps converted data, conversion status, and the offset for appending the header and body signature to the converted data.
DrmErrorEvent	An entity class that is passed to the `onError()` callback.
DrmEvent	A base class that is used to send asynchronous event information from the DRM framework.
DrmInfo	An entity class that describes the information required to send transactions between a device and an online DRM server.
DrmInfoEvent	An entity class that is passed to the `onInfo()` callback.
DrmInfoRequest	An entity class that is used to pass information to an online DRM server.
DrmInfoStatus	An entity class that wraps the result of communication between a device and an online DRM server.
DrmInitData	Encapsulates initialization data required by a `MediaDrm` instance.
DrmInitData.SchemeInitData	Scheme initialization data.
DrmManagerClient	The main programming interface for the DRM framework.
DrmManagerClient.OnErrorListener	Interface definition for a callback that receives information about DRM framework errors.
DrmManagerClient.OnEventListener	Interface definition for a callback that receives information about DRM processing events.
DrmManagerClient.OnInfoListener	Interface definition for a callback that receives status messages and warnings during registration and rights acquisition.
DrmRights	An entity class that wraps the license information retrieved from the online DRM server.
DrmStore	Defines constants that are used by the DRM framework.
DrmStore.Action	Defines actions that can be performed on rights-protected content.
DrmStore.ConstraintsColumns	Interface definition for the columns that represent DRM constraints.
DrmStore.DrmObjectType	Defines DRM object types.
DrmStore.Playback	Defines playback states for content.
DrmStore.RightsStatus	Defines status notifications for digital rights.
DrmSupportInfo	An entity class that wraps the capability of each DRM plug-in (agent), such as the MIME type and file suffix the DRM plug-in can handle.
DrmUtils	A utility class that provides operations for parsing extended metadata embedded in DRM constraint information.
DrmUtils.ExtendedMetadataParser	Utility that parses extended metadata embedded in DRM constraint information.
DropBoxManager	Enqueues chunks of data (from various sources -- application crashes, kernel log records, etc.).
DropBoxManager.Entry	A single entry retrieved from the drop box.
DropDownPreference	A version of `ListPreference` that presents the options in a drop down menu rather than a dialog.
DSAKey	The interface to a DSA public or private key.
DSAKeyPairGenerator	An interface to an object capable of generating DSA key pairs.
DSAParameterSpec	This class specifies the set of parameters used with the DSA algorithm.
DSAParams	Interface to a DSA-specific set of key parameters, which defines a DSA key family.
DSAPrivateKey	The standard interface to a DSA private key.
DSAPrivateKeySpec	This class specifies a DSA private key with its associated parameters.
DSAPublicKey	The interface to a DSA public key.
DSAPublicKeySpec	This class specifies a DSA public key with its associated parameters.
DTDHandler	Receive notification of basic DTD-related events.
DuplicateFormatFlagsException	Unchecked exception thrown when duplicate flags are provided in the format specifier.
Duration	Immutable representation of a time span as defined in the W3C XML Schema 1.0 specification.
DynamicDrawableSpan
DynamicLayout	DynamicLayout is a text layout that updates itself as the text is edited.

E

EasyEditSpan	Provides an easy way to edit a portion of text.
ECField	This interface represents an elliptic curve (EC) finite field.
ECFieldF2m	This immutable class defines an elliptic curve (EC) characteristic 2 finite field.
ECFieldFp	This immutable class defines an elliptic curve (EC) prime finite field.
ECGenParameterSpec	This immutable class specifies the set of parameters used for generating elliptic curve (EC) domain parameters.
ECKey	The interface to an elliptic curve (EC) key.
ECParameterSpec	This immutable class specifies the set of domain parameters used with elliptic curve cryptography (ECC).
ECPoint	This immutable class represents a point on an elliptic curve (EC) in affine coordinates.
ECPrivateKey	The interface to an elliptic curve (EC) private key.
ECPrivateKeySpec	This immutable class specifies an elliptic curve private key with its associated parameters.
ECPublicKey	The interface to an elliptic curve (EC) public key.
ECPublicKeySpec	This immutable class specifies an elliptic curve public key with its associated parameters.
EdgeEffect	This class performs the graphical effect used at the edges of scrollable widgets when the user scrolls beyond the content bounds in 2D space.
EdgeEffectCompat	Helper for accessing `EdgeEffect` introduced after API level 4 in a backwards compatible fashion.
Editable	This is the interface for text whose content and markup can be changed (as opposed to immutable text like Strings).
Editable.Factory	Factory used by TextView to create new Editables.
EditorInfo	An EditorInfo describes several attributes of a text editing object that an input method is communicating with (typically an EditText), most importantly the type of text content it contains and the current cursor position.
EditText	EditText is a thin veneer over TextView that configures itself to be editable.
EditTextPreference	A `Preference` that allows for string input.
EditTextPreference	A `Preference` that allows for string input.
EditTextPreferenceDialogFragment
EditTextPreferenceDialogFragmentCompat
Effect	Effects are high-performance transformations that can be applied to image frames.
EffectContext	An EffectContext keeps all necessary state information to run Effects within a Open GL ES 2.0 context.
EffectFactory	The EffectFactory class defines the list of available Effects, and provides functionality to inspect and instantiate them.
EffectUpdateListener	Some effects may issue callbacks to inform the host of changes to the effect state.
EGL
EGL10
EGL11
EGL14	EGL 1.4
EGLConfig	Wrapper class for native EGLConfig objects.
EGLConfig
EGLContext	Wrapper class for native EGLContext objects.
EGLContext
EGLDisplay	Wrapper class for native EGLDisplay objects.
EGLDisplay
EGLExt	EGL Extensions
EGLObjectHandle	Base class for wrapped EGL objects.
EGLSurface	Wrapper class for native EGLSurface objects.
EGLSurface
Element	An Element represents one item within an `Allocation`.
Element	An XML element.
Element	An Element represents one item within an `Allocation`.
Element	The `Element` interface represents an element in an HTML or XML document.
Element.Builder	Builder class for producing complex elements with matching field and name pairs.
Element.Builder	Builder class for producing complex elements with matching field and name pairs.
Element.DataKind	The special interpretation of the data if required.
Element.DataKind	The special interpretation of the data if required.
Element.DataType	DataType represents the basic type information for a basic element.
Element.DataType	DataType represents the basic type information for a basic element.
ElementListener	Listens for the beginning and ending of elements.
ElementType	A program element type.
EllipticCurve	This immutable class holds the necessary values needed to represent an elliptic curve.
EmbossMaskFilter
EmptyStackException	Thrown by methods in the `Stack` class to indicate that the stack is empty.
EncodedKeySpec	This class represents a public or private key in encoded format.
EncryptedPrivateKeyInfo	This class implements the `EncryptedPrivateKeyInfo` type as defined in PKCS #8.
EndElementListener	Listens for the end of elements.
EndTextElementListener	Listens for the end of text elements.
Entity	A representation of a item using ContentValues.
Entity	This interface represents a known entity, either parsed or unparsed, in an XML document.
Entity.NamedContentValues
EntityIterator	A specialization of `Iterator` that allows iterating over a collection of `Entity` objects.
EntityReference	`EntityReference` nodes may be used to represent an entity reference in the tree.
EntityResolver	Basic interface for resolving entities.
EntityResolver2	Extended interface for mapping external entity references to input sources, or providing a missing external subset.
Enum<E extends Enum<E>>	This is the common base class of all Java language enumeration types.
EnumConstantNotPresentException	Thrown when an application tries to access an enum constant by name and the enum type contains no constant with the specified name.
Enumeration<E>	An object that implements the Enumeration interface generates a series of elements, one at a time.
EnumMap<K extends Enum<K>, V>	A specialized `Map` implementation for use with enum type keys.
EnumSet<E extends Enum<E>>	A specialized `Set` implementation for use with enum types.
Environment	Provides access to environment variables.
EnvironmentalReverb	A sound generated within a room travels in many directions.
EnvironmentalReverb.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the EnvironmentalReverb when a parameter value has changed.
EnvironmentalReverb.Settings	The Settings class regroups all environmental reverb parameters.
EnvironmentCompat	Helper for accessing features in `Environment` introduced after API level 4 in a backwards compatible fashion.
EOFException	Signals that an end of file or end of stream has been reached unexpectedly during input.
Equalizer	An Equalizer is used to alter the frequency response of a particular music source or of the main output mix.
Equalizer.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the Equalizer when a parameter value has changed.
Equalizer.Settings	The Settings class regroups all equalizer parameters.
ErrnoException	A checked exception thrown when `Os` methods fail.
Error	An `Error` is a subclass of `Throwable` that indicates serious problems that a reasonable application should not try to catch.
ErrorFragment	A fragment for displaying an error indication.
ErrorHandler	Basic interface for SAX error handlers.
ErrorListener	To provide customized error handling, implement this interface and use the `setErrorListener` method to register an instance of the implementation with the `Transformer`.
ErrorManager	ErrorManager objects can be attached to Handlers to process any error that occurs on a Handler during Logging.
ErrorSupportFragment	A fragment for displaying an error indication.
ETC1	Methods for encoding and decoding ETC1 textures.
ETC1Util	Utility methods for using ETC1 compressed textures.
ETC1Util.ETC1Texture	A utility class encapsulating a compressed ETC1 texture.
EventListener	A tagging interface that all event listener interfaces must extend.
EventListenerProxy<T extends EventListener>	An abstract wrapper class for an `EventListener` class which associates a set of additional parameters with the listener.
EventLog	Access to the system diagnostic event record.
EventLog.Event	A previously logged event read from the logs.
EventLogTags	This class was deprecated in API level 8. This class is no longer functional. Use `EventLog` instead.
EventLogTags.Description
EventObject	The root class from which all event state objects shall be derived.
Exception	The class `Exception` and its subclasses are a form of `Throwable` that indicates conditions that a reasonable application might want to catch.
ExceptionInInitializerError	Signals that an unexpected exception has occurred in a static initializer.
Exchanger<V>	A synchronization point at which threads can pair and swap elements within pairs.
ExecutionException	Exception thrown when attempting to retrieve the result of a task that aborted by throwing an exception.
Executor	An object that executes submitted `Runnable` tasks.
ExecutorCompletionService<V>	A `CompletionService` that uses a supplied `Executor` to execute tasks.
Executors	Factory and utility methods for `Executor`, `ExecutorService`, `ScheduledExecutorService`, `ThreadFactory`, and `Callable` classes defined in this package.
ExecutorService	An `Executor` that provides methods to manage termination and methods that can produce a `Future` for tracking progress of one or more asynchronous tasks.
ExemptionMechanism	This class provides the functionality of an exemption mechanism, examples of which are key recovery, key weakening, and key escrow.
ExemptionMechanismException	This is the generic ExemptionMechanism exception.
ExemptionMechanismSpi	This class defines the Service Provider Interface (SPI) for the `ExemptionMechanism` class.
ExifInterface	This is a class for reading and writing Exif tags in a JPEG file or a RAW image file.
ExpandableListActivity	An activity that displays an expandable list of items by binding to a data source implementing the ExpandableListAdapter, and exposes event handlers when the user selects an item.
ExpandableListAdapter	An adapter that links a `ExpandableListView` with the underlying data.
ExpandableListView	A view that shows items in a vertically scrolling two-level list.
ExpandableListView.ExpandableListContextMenuInfo	Extra menu information specific to an `ExpandableListView` provided to the `onCreateContextMenu(ContextMenu, View, ContextMenuInfo)` callback when a context menu is brought up for this AdapterView.
ExpandableListView.OnChildClickListener	Interface definition for a callback to be invoked when a child in this expandable list has been clicked.
ExpandableListView.OnGroupClickListener	Interface definition for a callback to be invoked when a group in this expandable list has been clicked.
ExpandableListView.OnGroupCollapseListener	Used for being notified when a group is collapsed
ExpandableListView.OnGroupExpandListener	Used for being notified when a group is expanded
Explode	This transition tracks changes to the visibility of target views in the start and end scenes and moves views in or out from the edges of the scene.
ExploreByTouchHelper	ExploreByTouchHelper is a utility class for implementing accessibility support in custom `View`s that represent a collection of View-like logical items.
ExtendedSSLSession	Extends the `SSLSession` interface to support additional session attributes.
Extension	This interface represents an X.509 extension.
Externalizable	Only the identity of the class of an Externalizable instance is written in the serialization stream and it is the responsibility of the class to save and restore the contents of its instances.
ExtractEditText	Specialization of `EditText` for showing and interacting with the extracted text in a full-screen input method.
ExtractedText	Information about text that has been extracted for use by an input method.
ExtractedTextRequest	Description of what an input method would like from an application when extract text from its input editor.

F

Face	Describes a face detected in an image.
FaceDetector	Identifies the faces of people in a `Bitmap` graphic object.
FaceDetector.Face	A Face contains all the information identifying the location of a face in a bitmap.
FacetProvider	This is the query interface to supply optional features(aka facets) on an object without the need of letting the object to subclass or implement java interfaces.
FacetProviderAdapter	Optional interface that implemented by `RecyclerView.Adapter` to query `FacetProvider` for a given type within Adapter.
FactoryConfigurationError	Thrown when a problem with configuration with the Parser Factories exists.
Fade	This transition tracks changes to the visibility of target views in the start and end scenes and fades views in or out when they become visible or non-visible.
FastOutLinearInInterpolator	Interpolator corresponding to `fast_out_linear_in`.
FastOutSlowInInterpolator	Interpolator corresponding to `fast_out_slow_in`.
FeatureGroupInfo	A set of features that can be requested by an application.
FeatureInfo	Definition of a single optional hardware or software feature of an Android device.
Field	A `Field` provides information about, and dynamic access to, a single field of a class or an interface.
FieldPacker	Utility class for packing arguments and structures from Android system objects to RenderScript objects.
FieldPacker	Utility class for packing arguments and structures from Android system objects to RenderScript objects.
FieldPosition	`FieldPosition` is a simple class used by `Format` and its subclasses to identify fields in formatted output.
File	An abstract representation of file and directory pathnames.
FileBackupHelper	A helper class that can be used in conjunction with `BackupAgentHelper` to manage the backup of a set of files.
FileChannel	A channel for reading, writing, mapping, and manipulating a file.
FileChannel.MapMode	A typesafe enumeration for file-mapping modes.
FileDescriptor	Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
FileFilter	A filter for abstract pathnames.
FileHandler	Simple file logging `Handler`.
FileInputStream	A `FileInputStream` obtains input bytes from a file in a file system.
FileLock	A token representing a lock on a region of a file.
FileLockInterruptionException	Checked exception received by a thread when another thread interrupts it while it is waiting to acquire a file lock.
FilenameFilter	Instances of classes that implement this interface are used to filter filenames.
FileNameMap	A simple interface which provides a mechanism to map between a file name and a MIME type string.
FileNotFoundException	Signals that an attempt to open the file denoted by a specified pathname has failed.
FileObserver	Monitors files (using inotify) to fire an event after files are accessed or changed by by any process on the device (including this one).
FileOutputStream	A file output stream is an output stream for writing data to a `File` or to a `FileDescriptor`.
FilePermission	Legacy security code; do not use.
FileProvider	FileProvider is a special subclass of `ContentProvider` that facilitates secure sharing of files associated with an app by creating a `content://` `Uri` for a file instead of a `file:///` `Uri`.
FileReader	Convenience class for reading character files.
FileUriExposedException	The exception that is thrown when an application exposes a `file://` `Uri` to another app.
FileWriter	Convenience class for writing character files.
Filter	A filter constrains data with a filtering pattern.
Filter	A Filter can be used to provide fine grain control over what is logged, beyond the control provided by log levels.
Filter.FilterListener	Listener used to receive a notification upon completion of a filtering operation.
Filter.FilterResults	Holds the results of a filtering operation.
Filterable	Defines a filterable behavior.
FilterInputStream	A `FilterInputStream` contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
FilterOutputStream	This class is the superclass of all classes that filter output streams.
FilterQueryProvider	This class can be used by external clients of CursorAdapter and CursorTreeAdapter to define how the content of the adapter should be filtered.
FilterReader	Abstract class for reading filtered character streams.
FilterWriter	Abstract class for writing filtered character streams.
FingerprintManager	A class that coordinates access to the fingerprint hardware.
FingerprintManager.AuthenticationCallback	Callback structure provided to `authenticate(CryptoObject, CancellationSignal, int, AuthenticationCallback, Handler)`.
FingerprintManager.AuthenticationResult	Container for callback data from `authenticate(CryptoObject, CancellationSignal, int, AuthenticationCallback, Handler)`.
FingerprintManager.CryptoObject	A wrapper class for the crypto objects supported by FingerprintManager.
FingerprintManagerCompat	A class that coordinates access to the fingerprint hardware.
FingerprintManagerCompat.AuthenticationCallback	Callback structure provided to `authenticate(CryptoObject, int, CancellationSignal, AuthenticationCallback, Handler)`.
FingerprintManagerCompat.AuthenticationResult	Container for callback data from `authenticate(CryptoObject, int, CancellationSignal, AuthenticationCallback, Handler)`.
FingerprintManagerCompat.CryptoObject	A wrapper class for the crypto objects supported by FingerprintManager.
FlakyTest	This @interface was deprecated in API level 24. Use FlakyTest instead. New tests should be written using the Android Testing Support Library.
Float	The `Float` class wraps a value of primitive type `float` in an object.
Float2	Vector version of the basic float type.
Float2	Class for exposing the native RenderScript float2 type back to the Android system.
Float3	Vector version of the basic float type.
Float3	Class for exposing the native RenderScript float2 type back to the Android system.
Float4	Vector version of the basic float type.
Float4	Class for exposing the native RenderScript float2 type back to the Android system.
FloatArrayEvaluator	This evaluator can be used to perform type interpolation between `float[]` values.
FloatBuffer	A float buffer.
FloatEvaluator	This evaluator can be used to perform type interpolation between `float` values.
FloatingActionButton	Floating action buttons are used for a special type of promoted action.
FloatingActionButton.Behavior	Behavior designed for use with `FloatingActionButton` instances.
FloatingActionButton.OnVisibilityChangedListener	Callback to be invoked when the visibility of a FloatingActionButton changes.
FloatMath	This class was deprecated in API level 22. Use `Math` instead.
FloatProperty<T>	An implementation of `Property` to be used specifically with fields of type `float`.
FloatRange	Denotes that the annotated element should be a float or double in the given range Example: `@FloatRange(from=0.0,to=1.0) public float getAlpha() { ...`
Flushable	A `Flushable` is a destination of data that can be flushed.
FocusFinder	The algorithm used for finding the next focusable view in a given direction from a view that currently has focus.
FocusHighlight	Interface for highlighting the item that has focus.
FocusHighlightHelper	Sets up the highlighting behavior when an item gains focus.
ForegroundColorSpan
ForkJoinPool	An `ExecutorService` for running `ForkJoinTask`s.
ForkJoinPool.ForkJoinWorkerThreadFactory	Factory for creating new `ForkJoinWorkerThread`s.
ForkJoinPool.ManagedBlocker	Interface for extending managed parallelism for tasks running in `ForkJoinPool`s.
ForkJoinTask<V>	Abstract base class for tasks that run within a `ForkJoinPool`.
ForkJoinWorkerThread	A thread managed by a `ForkJoinPool`, which executes `ForkJoinTask`s.
Format	`Format` is an abstract base class for formatting locale-sensitive information such as dates, messages, and numbers.
Format.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `Format.formatToCharacterIterator` and as field identifiers in `FieldPosition`.
FormatException
FormatFlagsConversionMismatchException	Unchecked exception thrown when a conversion and flag are incompatible.
Formattable	The `Formattable` interface must be implemented by any class that needs to perform custom formatting using the `'s'` conversion specifier of `Formatter`.
FormattableFlags	FomattableFlags are passed to the `Formattable.formatTo()` method and modify the output format for Formattables.
Formatter	Utility class to aid in formatting common values that are not covered by the `Formatter` class in `java.util`
Formatter	An interpreter for printf-style format strings.
Formatter	A Formatter provides support for formatting LogRecords.
Formatter.BigDecimalLayoutForm
FormatterClosedException	Unchecked exception thrown when the formatter has been closed.
FractionRes	Denotes that an integer parameter, field or method return value is expected to be a fraction resource reference.
Fragment	A Fragment is a piece of an application's user interface or behavior that can be placed in an `Activity`.
Fragment	Static library support version of the framework's `Fragment`.
Fragment.InstantiationException	Thrown by `instantiate(Context, String, Bundle)` when there is an instantiation failure.
Fragment.InstantiationException	Thrown by `instantiate(Context, String, Bundle)` when there is an instantiation failure.
Fragment.SavedState	State information that has been retrieved from a fragment instance through `FragmentManager.saveFragmentInstanceState`.
Fragment.SavedState	State information that has been retrieved from a fragment instance through `FragmentManager.saveFragmentInstanceState`.
FragmentActivity	Base class for activities that want to use the support-based `Fragment` and `Loader` APIs.
FragmentAnimationProvider	FragmentAnimationProvider supplies animations for use during a fragment's onCreateAnimator callback.
FragmentBreadCrumbs	This class was deprecated in API level 21. This widget is no longer supported.
FragmentBreadCrumbs.OnBreadCrumbClickListener	Interface to intercept clicks on the bread crumbs.
FragmentCompat	Helper for accessing features in `Fragment` introduced after API level 13 in a backwards compatible fashion.
FragmentCompat.OnRequestPermissionsResultCallback	This interface is the contract for receiving the results for permission requests.
FragmentContainer	Callbacks to a `Fragment`'s container.
FragmentContainer	Callbacks to a `Fragment`'s container.
FragmentController	Provides integration points with a `FragmentManager` for a fragment host.
FragmentController	Provides integration points with a `FragmentManager` for a fragment host.
FragmentHostCallback<E>	Integration points with the Fragment host.
FragmentHostCallback<E>	Integration points with the Fragment host.
FragmentManager	Interface for interacting with `Fragment` objects inside of an `Activity` Developer Guides For more information about using fragments, read the Fragments developer guide.
FragmentManager	Static library support version of the framework's `FragmentManager`.
FragmentManager.BackStackEntry	Representation of an entry on the fragment back stack, as created with `FragmentTransaction.addToBackStack()`.
FragmentManager.BackStackEntry	Representation of an entry on the fragment back stack, as created with `FragmentTransaction.addToBackStack()`.
FragmentManager.OnBackStackChangedListener	Interface to watch for changes to the back stack.
FragmentManager.OnBackStackChangedListener	Interface to watch for changes to the back stack.
FragmentManagerNonConfig	FragmentManagerNonConfig stores the retained instance fragments across activity recreation events.
FragmentManagerNonConfig	FragmentManagerNonConfig stores the retained instance fragments across activity recreation events.
FragmentPagerAdapter	Implementation of `PagerAdapter` that represents each page as a `Fragment` that is persistently kept in the fragment manager as long as the user can return to the page.
FragmentPagerAdapter	Implementation of `PagerAdapter` that represents each page as a `Fragment` that is persistently kept in the fragment manager as long as the user can return to the page.
FragmentStatePagerAdapter	Implementation of `PagerAdapter` that uses a `Fragment` to manage each page.
FragmentStatePagerAdapter	Implementation of `PagerAdapter` that uses a `Fragment` to manage each page.
FragmentTabHost	Version of `FragmentTabHost` that can be used with the platform `Fragment` APIs.
FragmentTabHost	Special TabHost that allows the use of `Fragment` objects for its tab content.
FragmentTransaction	API for performing a set of Fragment operations.
FragmentTransaction	Static library support version of the framework's `FragmentTransaction`.
FrameLayout	FrameLayout is designed to block out an area on the screen to display a single item.
FrameLayout.LayoutParams	Per-child layout information for layouts that support margins.
FrameMetrics	Class containing timing data for various milestones in a frame lifecycle reported by the rendering subsystem.
FrameStats	This is the base class for frame statistics.
Freezable<T>	Provides a flexible mechanism for controlling access, without requiring that a class be immutable.
FullBackupDataOutput	Provides the interface through which a `BackupAgent` writes entire files to a full backup data set, via its `onFullBackup(FullBackupDataOutput)` method.
FullWidthDetailsOverviewRowPresenter	Renders a `DetailsOverviewRow` to display an overview of an item.
FullWidthDetailsOverviewRowPresenter.Listener	Listeners for events on ViewHolder.
FullWidthDetailsOverviewRowPresenter.ViewHolder	A ViewHolder for the DetailsOverviewRow.
FullWidthDetailsOverviewRowPresenter.ViewHolder.DetailsOverviewRowListener
FullWidthDetailsOverviewSharedElementHelper	Helper class to assist delayed shared element activity transition for view created by `FullWidthDetailsOverviewRowPresenter`.
Function<T, R>	Represents a function that accepts one argument and produces a result.
FunctionalInterface	An informative annotation type used to indicate that an interface type declaration is intended to be a functional interface as defined by the Java Language Specification.
Future<V>	A `Future` represents the result of an asynchronous computation.
FutureTask<V>	A cancellable asynchronous computation.

G

Gallery	This class was deprecated in API level 16. This widget is no longer supported. Other horizontally scrolling widgets include `HorizontalScrollView` and `ViewPager` from the support library.
Gallery.LayoutParams	Gallery extends LayoutParams to provide a place to hold current Transformation information along with previous position/transformation info.
GatewayInfo	Encapsulated gateway address information for outgoing call.
GatheringByteChannel	A channel that can write bytes from a sequence of buffers.
GCMParameterSpec	Specifies the set of parameters required by a `Cipher` using the Galois/Counter Mode (GCM) mode.
GeneralSecurityException	The `GeneralSecurityException` class is a generic security exception class that provides type safety for all the security-related exception classes that extend from it.
GenericArrayType	`GenericArrayType` represents an array type whose component type is either a parameterized type or a type variable.
GenericDeclaration	A common interface for all entities that declare type variables.
GenericSignatureFormatError	Thrown when a syntactically malformed signature attribute is encountered by a reflective method that needs to interpret the generic signature information for a type, method or constructor.
Geocoder	A class for handling geocoding and reverse geocoding.
GeolocationPermissions	This class is used to manage permissions for the WebView's Geolocation JavaScript API.
GeolocationPermissions.Callback	A callback interface used by the host application to set the Geolocation permission state for an origin.
GeomagneticField	Estimates magnetic field at a given point on Earth, and in particular, to compute the magnetic declination from true north.
Gesture	A gesture is a hand-drawn shape on a touch screen.
GestureDescription	Accessibility services with the `AccessibilityService_canPerformGestures` property can dispatch gestures.
GestureDescription.Builder	Builder for a `GestureDescription`
GestureDescription.StrokeDescription	Immutable description of stroke that can be part of a gesture.
GestureDetector	Detects various gestures and events using the supplied `MotionEvent`s.
GestureDetector.OnContextClickListener	The listener that is used to notify when a context click occurs.
GestureDetector.OnDoubleTapListener	The listener that is used to notify when a double-tap or a confirmed single-tap occur.
GestureDetector.OnGestureListener	The listener that is used to notify when gestures occur.
GestureDetector.SimpleOnGestureListener	A convenience class to extend when you only want to listen for a subset of all the gestures.
GestureDetectorCompat	Detects various gestures and events using the supplied `MotionEvent`s.
GestureLibraries
GestureLibrary
GestureOverlayView	A transparent overlay for gesture input that can be placed on top of other widgets or contain other widgets.
GestureOverlayView.OnGestureListener
GestureOverlayView.OnGesturePerformedListener
GestureOverlayView.OnGesturingListener
GesturePoint	A timed point of a gesture stroke.
GestureStore	GestureLibrary maintains gesture examples and makes predictions on a new gesture
GestureStroke	A gesture stroke started on a touch down and ended on a touch up.
GestureUtils	Utility functions for gesture processing & analysis, including methods for: feature extraction (e.g., samplers and those for calculating bounding boxes and gesture path lengths); geometric transformation (e.g., translation, rotation and scaling); gesture similarity comparison (e.g., calculating Euclidean or Cosine distances between two gestures).
GetChars	Please implement this interface if your CharSequence has a getChars() method like the one in String that is faster than calling charAt() multiple times.
GL
GL10
GL10Ext
GL11
GL11Ext
GL11ExtensionPack
GLDebugHelper	A helper class for debugging OpenGL ES applications.
GLES10
GLES10Ext
GLES11
GLES11Ext
GLES20	OpenGL ES 2.0
GLES30	OpenGL ES 3.0
GLES31	OpenGL ES 3.1
GLES31Ext
GLES31Ext.DebugProcKHR
GLES32	OpenGL ES 3.2
GLES32.DebugProc
GLException	An exception class for OpenGL errors.
GLSurfaceView	An implementation of SurfaceView that uses the dedicated surface for displaying OpenGL rendering.
GLSurfaceView.EGLConfigChooser	An interface for choosing an EGLConfig configuration from a list of potential configurations.
GLSurfaceView.EGLContextFactory	An interface for customizing the eglCreateContext and eglDestroyContext calls.
GLSurfaceView.EGLWindowSurfaceFactory	An interface for customizing the eglCreateWindowSurface and eglDestroySurface calls.
GLSurfaceView.GLWrapper	An interface used to wrap a GL interface.
GLSurfaceView.Renderer	A generic renderer interface.
GLU	A set of GL utilities inspired by the OpenGL Utility Toolkit.
GLUtils	Utility class to help bridging OpenGL ES and Android APIs.
GnssClock	A class containing a GPS clock timestamp.
GnssMeasurement	A class representing a GNSS satellite measurement, containing raw and computed information.
GnssMeasurementsEvent	A class implementing a container for data associated with a measurement event.
GnssMeasurementsEvent.Callback	Used for receiving GNSS satellite measurements from the GNSS engine.
GnssNavigationMessage	A class containing a GNSS satellite Navigation Message.
GnssNavigationMessage.Callback	Used for receiving GNSS satellite Navigation Messages from the GNSS engine.
GnssStatus	This class represents the current state of the GNSS engine.
GnssStatus.Callback	Used for receiving notifications when GNSS events happen.
GpsSatellite	This class was deprecated in API level 24. use `GnssStatus` and `GnssStatus.Callback`.
GpsStatus	This class was deprecated in API level 24. use `GnssStatus` and `GnssStatus.Callback`.
GpsStatus.Listener	This interface was deprecated in API level 24. use `GnssStatus.Callback` instead.
GpsStatus.NmeaListener	This interface was deprecated in API level 24. use `OnNmeaMessageListener` instead.
GradientDrawable	A Drawable with a color gradient for buttons, backgrounds, etc.
GradientDrawable.Orientation	Controls how the gradient is oriented relative to the drawable's bounds
Gravity	Standard constants and tools for placing an object within a potentially larger container.
GravityCompat	Compatibility shim for accessing newer functionality from `Gravity`.
GregorianCalendar	[icu enhancement] ICU's replacement for `GregorianCalendar`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
GregorianCalendar	`GregorianCalendar` is a concrete subclass of `Calendar` and provides the standard calendar system used by most of the world.
GridLayout	A layout that places its children in a rectangular grid.
GridLayout	A layout that places its children in a rectangular grid.
GridLayout.Alignment	Alignments specify where a view should be placed within a cell group and what size it should be.
GridLayout.Alignment	Alignments specify where a view should be placed within a cell group and what size it should be.
GridLayout.LayoutParams	Layout information associated with each of the children of a GridLayout.
GridLayout.LayoutParams	Layout information associated with each of the children of a GridLayout.
GridLayout.Spec	A Spec defines the horizontal or vertical characteristics of a group of cells.
GridLayout.Spec	A Spec defines the horizontal or vertical characteristics of a group of cells.
GridLayoutAnimationController	A layout animation controller is used to animated a grid layout's children.
GridLayoutAnimationController.AnimationParameters	The set of parameters that has to be attached to each view contained in the view group animated by the grid layout animation controller.
GridLayoutManager	A `RecyclerView.LayoutManager` implementations that lays out items in a grid.
GridLayoutManager.DefaultSpanSizeLookup	Default implementation for `GridLayoutManager.SpanSizeLookup`.
GridLayoutManager.LayoutParams	LayoutParams used by GridLayoutManager.
GridLayoutManager.SpanSizeLookup	A helper class to provide the number of spans each item occupies.
GridView	A view that shows items in two-dimensional scrolling grid.
Group	This interface is used to represent a group of principals.
GsmCellLocation	Represents the cell location on a GSM phone.
Guard	This interface represents a guard, which is an object that is used to protect access to another object.
GuardedObject	A GuardedObject is an object that is used to protect access to another object.
GuidanceStylist	GuidanceStylist is used within a `GuidedStepFragment` to display contextual information for the decision(s) required at that step.
GuidanceStylist.Guidance	A data class representing contextual information for a `GuidedStepFragment`.
GuidedAction	A data class which represents an action within a `GuidedStepFragment`.
GuidedAction.Builder	Builds a `GuidedAction` object.
GuidedAction.BuilderBase<B extends BuilderBase>	Base builder class to build a `GuidedAction` object.
GuidedActionEditText	A custom EditText that satisfies the IME key monitoring requirements of GuidedStepFragment.
GuidedActionsStylist	GuidedActionsStylist is used within a `GuidedStepFragment` to supply the right-side panel where users can take actions.
GuidedActionsStylist.ViewHolder	ViewHolder caches information about the action item layouts' subviews.
GuidedDatePickerAction	Subclass of GuidedAction that can choose a date.
GuidedDatePickerAction.Builder	Builder class to build a GuidedDatePickerAction.
GuidedDatePickerAction.BuilderBase<B extends BuilderBase>	Base Builder class to build GuidedDatePickerAction.
GuidedStepFragment	A GuidedStepFragment is used to guide the user through a decision or series of decisions.
GuidedStepSupportFragment	A GuidedStepSupportFragment is used to guide the user through a decision or series of decisions.
GZIPInputStream	This class implements a stream filter for reading compressed data in the GZIP file format.
GZIPOutputStream	This class implements a stream filter for writing compressed data in the GZIP file format.

H

Handler	A Handler allows you to send and process `Message` and Runnable objects associated with a thread's `MessageQueue`.
Handler	A `Handler` object takes log messages from a `Logger` and exports them.
Handler.Callback	Callback interface you can use when instantiating a Handler to avoid having to implement your own subclass of Handler.
HandlerBase	This class was deprecated in API level 1. This class works with the deprecated `DocumentHandler` interface. It has been replaced by the SAX2 `DefaultHandler` class.
HandlerThread	Handy class for starting a new thread that has a looper.
HandshakeCompletedEvent	This event indicates that an SSL handshake completed on a given SSL connection.
HandshakeCompletedListener	This interface is implemented by any class which wants to receive notifications about the completion of an SSL protocol handshake on a given SSL connection.
HapticFeedbackConstants	Constants to be used to perform haptic feedback effects via `performHapticFeedback(int)`
HardwarePropertiesManager	The HardwarePropertiesManager class provides a mechanism of accessing hardware state of a device: CPU, GPU and battery temperatures, CPU usage per core, fan speed, etc.
HashMap<K, V>	Hash table based implementation of the `Map` interface.
HashSet<E>	This class implements the `Set` interface, backed by a hash table (actually a `HashMap` instance).
Hashtable<K, V>	This class implements a hash table, which maps keys to values.
HeaderItem	A header item describes the metadata of a `Row`, such as a category of media items.
HeadersFragment	An internal fragment containing a list of row headers.
HeadersFragment.OnHeaderClickedListener	Interface definition for a callback to be invoked when a header item is clicked.
HeadersFragment.OnHeaderViewSelectedListener	Interface definition for a callback to be invoked when a header item is selected.
HeadersSupportFragment	An internal fragment containing a list of row headers.
HeadersSupportFragment.OnHeaderClickedListener	Interface definition for a callback to be invoked when a header item is clicked.
HeadersSupportFragment.OnHeaderViewSelectedListener	Interface definition for a callback to be invoked when a header item is selected.
HeaderViewListAdapter	ListAdapter used when a ListView has header views.
HealthStats	A HealthStats object contains system health data about an application.
HebrewCalendar	`HebrewCalendar` is a subclass of `Calendar` that that implements the traditional Hebrew calendar.
HeterogeneousExpandableList	Additional methods that when implemented make an `ExpandableListAdapter` take advantage of the `Adapter` view type mechanism.
HideReturnsTransformationMethod	This transformation method causes any carriage return characters (\r) to be hidden by displaying them as zero-width non-breaking space characters ().
HorizontalGridView	A `ViewGroup` that shows items in a horizontal scrolling list.
HorizontalHoverCardSwitcher	A helper class for showing a hover card view below a `HorizontalGridView`.
HorizontalScrollView	Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display.
HostApduService	HostApduService is a convenience `Service` class that can be extended to emulate an NFC card inside an Android service component.
HostNameResolver	This interface was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
HostnameVerifier	This class is the base interface for hostname verification.
HostNfcFService	HostNfcFService is a convenience `Service` class that can be extended to emulate an NFC-F card inside an Android service component.
Html	This class processes HTML strings into displayable styled text.
Html.ImageGetter	Retrieves images for HTML <img> tags.
Html.TagHandler	Is notified when HTML tags are encountered that the parser does not know how to interpret.
HttpAuthHandler	Represents a request for HTTP authentication.
HttpConnectionParams	This class was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
HttpCookie	An HttpCookie object represents an http cookie, which carries state information between server and user agent.
HttpParams	This interface was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
HttpResponseCache	Caches HTTP and HTTPS responses to the filesystem so they may be reused, saving time and bandwidth.
HttpRetryException	Thrown to indicate that a HTTP request needs to be retried but cannot be retried automatically, due to streaming mode being enabled.
HttpsURLConnection	`HttpsURLConnection` extends `HttpURLConnection` with support for https-specific features.
HttpURLConnection	A URLConnection with support for HTTP-specific features.

I

IBinder	Base interface for a remotable object, the core part of a lightweight remote procedure call mechanism designed for high performance when performing in-process and cross-process calls.
IBinder.DeathRecipient	Interface for receiving a callback when the process hosting an IBinder has gone away.
IccOpenLogicalChannelResponse	Response to the `iccOpenLogicalChannel(String)` command.
Icon	An umbrella container for several serializable graphics representations, including Bitmaps, compressed bitmap images (e.g.
Icon.OnDrawableLoadedListener	Implement this interface to receive a callback when `loadDrawableAsync` is finished and your Drawable is ready.
IconMarginSpan
ICUCompat
ICUUncheckedIOException	Unchecked version of `IOException`.
Identity	This class was deprecated in API level 1. This class is no longer used. Its functionality has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
IdentityHashMap<K, V>	This class implements the `Map` interface with a hash table, using reference-equality in place of object-equality when comparing keys (and values).
IdentityScope	This class was deprecated in API level 1. This class is no longer used. Its functionality has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
IDN	Provides methods to convert internationalized domain names (IDNs) between a normal Unicode representation and an ASCII Compatible Encoding (ACE) representation.
IDNA	Abstract base class for IDNA processing.
IDNA.Error	IDNA error bit set values.
IDNA.Info	Output container for IDNA processing errors.
IdRes	Denotes that an integer parameter, field or method return value is expected to be an id resource reference (e.g.
IInterface	Base class for Binder interfaces.
IllegalAccessError	Thrown if an application attempts to access or modify a field, or to call a method that it does not have access to.
IllegalAccessException	An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor.
IllegalArgumentException	Thrown to indicate that a method has been passed an illegal or inappropriate argument.
IllegalBlockingModeException	Unchecked exception thrown when a blocking-mode-specific operation is invoked upon a channel in the incorrect blocking mode.
IllegalBlockSizeException	This exception is thrown when the length of data provided to a block cipher is incorrect, i.e., does not match the block size of the cipher.
IllegalCharsetNameException	Unchecked exception thrown when a string that is not a legal charset name is used as such.
IllegalFormatCodePointException	Unchecked exception thrown when a character with an invalid Unicode code point as defined by `isValidCodePoint(int)` is passed to the `Formatter`.
IllegalFormatConversionException	Unchecked exception thrown when the argument corresponding to the format specifier is of an incompatible type.
IllegalFormatException	Unchecked exception thrown when a format string contains an illegal syntax or a format specifier that is incompatible with the given arguments.
IllegalFormatFlagsException	Unchecked exception thrown when an illegal combination flags is given.
IllegalFormatPrecisionException	Unchecked exception thrown when the precision is a negative value other than `-1`, the conversion does not support a precision, or the value is otherwise unsupported.
IllegalFormatWidthException	Unchecked exception thrown when the format width is a negative value other than `-1` or is otherwise unsupported.
IllegalMonitorStateException	Thrown to indicate that a thread has attempted to wait on an object's monitor or to notify other threads waiting on an object's monitor without owning the specified monitor.
IllegalSelectorException	Unchecked exception thrown when an attempt is made to register a channel with a selector that was not created by the provider that created the channel.
IllegalStateException	Signals that a method has been invoked at an illegal or inappropriate time.
IllegalThreadStateException	Thrown to indicate that a thread is not in an appropriate state for the requested operation.
IllformedLocaleException	Thrown by methods in `Locale` and `Locale.Builder` to indicate that an argument is not a well-formed BCP 47 tag.
Image	A single complete image buffer to use with a media source such as a `MediaCodec` or a `CameraDevice`.
Image.Plane	A single color plane of image data.
ImageButton	Displays a button with an image (instead of text) that can be pressed or clicked by the user.
ImageCardView	A subclass of `BaseCardView` with an `ImageView` as its main region.
ImageFormat
ImageReader	The ImageReader class allows direct application access to image data rendered into a `Surface` Several Android media API classes accept Surface objects as targets to render to, including `MediaPlayer`, `MediaCodec`, `CameraDevice`, `ImageWriter` and `RenderScript Allocations`.
ImageReader.OnImageAvailableListener	Callback interface for being notified that a new image is available.
ImageSpan
ImageSwitcher
ImageView	Displays an arbitrary image, such as an icon.
ImageView.ScaleType	Options for scaling the bounds of an image to the bounds of this view.
ImageWriter	The ImageWriter class allows an application to produce Image data into a `Surface`, and have it be consumed by another component like `CameraDevice`.
ImageWriter.OnImageReleasedListener	ImageWriter callback interface, used to to asynchronously notify the application of various ImageWriter events.
ImeKeyMonitor	Interface for an EditText subclass that can delegate calls to onKeyPreIme up to a registered listener.
ImeKeyMonitor.ImeKeyListener	Listener interface for key events intercepted pre-IME by edit text objects.
InCallService	This service is implemented by any app that wishes to provide the user-interface for managing phone calls.
InCallService.VideoCall	Used to issue commands to the `Connection.VideoProvider` associated with a `Call`.
InCallService.VideoCall.Callback	The `InCallService` extends this class to provide a means of receiving callbacks from the `Connection.VideoProvider`.
IncompatibleClassChangeError	Thrown when an incompatible class change has occurred to some class definition.
IncompleteAnnotationException	Thrown to indicate that a program has attempted to access an element of an annotation type that was added to the annotation type definition after the annotation was compiled (or serialized).
IndexedPropertyChangeEvent	An "IndexedPropertyChange" event gets delivered whenever a component that conforms to the JavaBeans™ specification (a "bean") changes a bound indexed property.
IndexOutOfBoundsException	Thrown to indicate that an index of some sort (such as to an array, to a string, or to a vector) is out of range.
IndianCalendar	`IndianCalendar` is a subclass of `GregorianCalendar` that numbers years since the birth of the Buddha.
Inet4Address	This class represents an Internet Protocol version 4 (IPv4) address.
Inet6Address	This class represents an Internet Protocol version 6 (IPv6) address.
InetAddress	This class represents an Internet Protocol (IP) address.
InetSocketAddress	This class implements an IP Socket Address (IP address + port number) It can also be a pair (hostname + port number), in which case an attempt will be made to resolve the hostname.
InflateException	This exception is thrown by an inflater on error conditions.
Inflater	This class provides support for general purpose decompression using the popular ZLIB compression library.
InflaterInputStream	This class implements a stream filter for uncompressing data in the "deflate" compression format.
InflaterOutputStream	Implements an output stream filter for uncompressing data stored in the "deflate" compression format.
InheritableThreadLocal<T>	This class extends `ThreadLocal` to provide inheritance of values from parent thread to child thread: when a child thread is created, the child receives initial values for all inheritable thread-local variables for which the parent has values.
Inherited	Indicates that an annotation type is automatically inherited.
InputBinding	Information given to an `InputMethod` about a client connecting to it.
InputConfiguration	Immutable class to store an input configuration that is used to create a reprocessable capture session.
InputConnection	The InputConnection interface is the communication channel from an `InputMethod` back to the application that is receiving its input.
InputConnectionWrapper	Wrapper class for proxying calls to another InputConnection.
InputDevice	Describes the capabilities of a particular input device.
InputDevice.MotionRange	Provides information about the range of values for a particular `MotionEvent` axis.
InputDeviceCompat	Helper class for accessing values in `InputDevice`.
InputEvent	Common base class for input events.
InputFilter	InputFilters can be attached to `Editable`s to constrain the changes that can be made to them.
InputFilter.AllCaps	This filter will capitalize all the lower case letters that are added through edits.
InputFilter.LengthFilter	This filter will constrain edits not to make the length of the text greater than the specified length.
InputManager	Provides information about input devices and available key layouts.
InputManager.InputDeviceListener	Listens for changes in input devices.
InputMethod	The InputMethod interface represents an input method which can generate key events and text, such as digital, email addresses, CJK characters, other language characters, and etc., while handling various input events, and send the text back to the application that requests text input.
InputMethod.SessionCallback
InputMethodInfo	This class is used to specify meta information of an input method.
InputMethodManager	Central system API to the overall input method framework (IMF) architecture, which arbitrates interaction between applications and the current input method.
InputMethodService	InputMethodService provides a standard implementation of an InputMethod, which final implementations can derive from and customize.
InputMethodService.InputMethodImpl	Concrete implementation of `AbstractInputMethodService.AbstractInputMethodImpl` that provides all of the standard behavior for an input method.
InputMethodService.InputMethodSessionImpl	Concrete implementation of `AbstractInputMethodService.AbstractInputMethodSessionImpl` that provides all of the standard behavior for an input method session.
InputMethodService.Insets	Information about where interesting parts of the input method UI appear.
InputMethodSession	The InputMethodSession interface provides the per-client functionality of `InputMethod` that is safe to expose to applications.
InputMethodSession.EventCallback
InputMethodSubtype	This class is used to specify meta information of a subtype contained in an input method editor (IME).
InputMethodSubtype.InputMethodSubtypeBuilder	InputMethodSubtypeBuilder is a builder class of InputMethodSubtype.
InputMismatchException	Thrown by a `Scanner` to indicate that the token retrieved does not match the pattern for the expected type, or that the token is out of range for the expected type.
InputQueue	An input queue provides a mechanism for an application to receive incoming input events.
InputQueue.Callback	Interface to receive notification of when an InputQueue is associated and dissociated with a thread.
InputSource	A single input source for an XML entity.
InputStream	This abstract class is the superclass of all classes representing an input stream of bytes.
InputStreamReader	An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified `charset`.
InputType	Bit definitions for an integer defining the basic content type of text held in an `Editable` object.
InsetDrawable	A Drawable that insets another Drawable by a specified distance.
InstantiationError	Thrown when an application tries to use the Java `new` construct to instantiate an abstract class or an interface.
InstantiationException	Thrown when an application tries to create an instance of a class using the `newInstance` method in class `Class`, but the specified class object cannot be instantiated.
Instrumentation	Base class for implementing application instrumentation code.
Instrumentation.ActivityMonitor	Information about a particular kind of Intent that is being monitored.
Instrumentation.ActivityResult	Description of a Activity execution result to return to the original activity.
InstrumentationInfo	Information you can retrieve about a particular piece of test instrumentation.
InstrumentationTestCase	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
InstrumentationTestRunner	This class was deprecated in API level 24. Use AndroidJUnitRunner instead. New tests should be written using the Android Testing Support Library.
InstrumentationTestSuite	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
Int2	Vector version of the basic int type.
Int2	Class for exposing the native RenderScript int2 type back to the Android system.
Int3	Vector version of the basic int type.
Int3	Class for exposing the native RenderScript int3 type back to the Android system.
Int4	Vector version of the basic int type.
Int4	Class for exposing the native RenderScript int4 type back to the Android system.
IntArrayEvaluator	This evaluator can be used to perform type interpolation between `int[]` values.
IntBinaryOperator	Represents an operation upon two `int`-valued operands and producing an `int`-valued result.
IntBuffer	An int buffer.
IntConsumer	Represents an operation that accepts a single `int`-valued argument and returns no result.
IntDef	Denotes that the annotated element of integer type, represents a logical type and that its value should be one of the explicitly named constants.
Integer	The `Integer` class wraps a value of the primitive type `int` in an object.
IntegerRes	Denotes that an integer parameter, field or method return value is expected to be an integer resource reference (e.g.
Intent	An intent is an abstract description of an operation to be performed.
Intent.FilterComparison	Wrapper class holding an Intent and implementing comparisons on it for the purpose of filtering.
Intent.ShortcutIconResource	Represents a shortcut/live folder icon resource.
IntentCompat	Helper for accessing features in `Intent` introduced after API level 4 in a backwards compatible fashion.
IntentFilter	Structured description of Intent values to be matched.
IntentFilter.AuthorityEntry	This is an entry for a single authority in the Iterator returned by `authoritiesIterator()`.
IntentFilter.MalformedMimeTypeException	This exception is thrown when a given MIME type does not have a valid syntax.
IntentSender	A description of an Intent and target action to perform with it.
IntentSender.OnFinished	Callback interface for discovering when a send operation has completed.
IntentSender.SendIntentException	Exception thrown when trying to send through a PendingIntent that has been canceled or is otherwise no longer able to execute the request.
IntentService	IntentService is a base class for `Service`s that handle asynchronous requests (expressed as `Intent`s) on demand.
InterfaceAddress	This class represents a Network Interface address.
InternalError	Thrown to indicate some unexpected internal error has occurred in the Java Virtual Machine.
Interpolator
Interpolator	An interpolator defines the rate of change of an animation.
Interpolator.Result
InterpolatorRes	Denotes that an integer parameter, field or method return value is expected to be an interpolator resource reference (e.g.
InterruptedException	Thrown when a thread is waiting, sleeping, or otherwise occupied, and the thread is interrupted, either before or during the activity.
InterruptedIOException	Signals that an I/O operation has been interrupted.
InterruptibleChannel	A channel that can be asynchronously closed and interrupted.
IntEvaluator	This evaluator can be used to perform type interpolation between `int` values.
IntFunction<R>	Represents a function that accepts an int-valued argument and produces a result.
IntPredicate	Represents a predicate (boolean-valued function) of one `int`-valued argument.
IntProperty<T>	An implementation of `Property` to be used specifically with fields of type `int`.
IntRange	Denotes that the annotated element should be an int or long in the given range Example: `@IntRange(from=0,to=255) public int getAlpha() { ...`
IntStream	A sequence of primitive int-valued elements supporting sequential and parallel aggregate operations.
IntStream.Builder	A mutable builder for an `IntStream`.
IntSummaryStatistics	A state object for collecting statistics such as count, min, max, sum, and average.
IntSupplier	Represents a supplier of `int`-valued results.
IntToDoubleFunction	Represents a function that accepts an int-valued argument and produces a double-valued result.
IntToLongFunction	Represents a function that accepts an int-valued argument and produces a long-valued result.
IntUnaryOperator	Represents an operation on a single `int`-valued operand that produces an `int`-valued result.
InvalidAlgorithmParameterException	This is the exception for invalid or inappropriate algorithm parameters.
InvalidClassException	Thrown when the Serialization runtime detects one of the following problems with a Class.
InvalidKeyException	This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc).
InvalidKeySpecException	This is the exception for invalid key specifications.
InvalidMarkException	Unchecked exception thrown when an attempt is made to reset a buffer when its mark is not defined.
InvalidObjectException	Indicates that one or more deserialized objects failed validation tests.
InvalidParameterException	This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
InvalidParameterSpecException	This is the exception for invalid parameter specifications.
InvalidPreferencesFormatException	Thrown to indicate that an operation could not complete because the input did not conform to the appropriate XML document type for a collection of preferences, as per the `Preferences` specification.
InvalidPropertiesFormatException	Thrown to indicate that an operation could not complete because the input did not conform to the appropriate XML document type for a collection of properties, as per the `Properties` specification.
InverseBindingAdapter	InverseBindingAdapter is associated with a method used to retrieve the value for a View when setting values gathered from the View.
InverseBindingListener	A listener implemented by all two-way bindings to be notified when a triggering change happens.
InverseBindingMethod	InverseBindingMethod is used to identify how to listen for changes to a View property and which getter method to call.
InverseBindingMethods	Used to enumerate attribute, getter, and event association.
InvocationHandler	`InvocationHandler` is the interface implemented by the invocation handler of a proxy instance.
InvocationTargetException	InvocationTargetException is a checked exception that wraps an exception thrown by an invoked method or constructor.
IOError	Thrown when a serious I/O error has occurred.
IOException	Signals that an I/O exception of some sort has occurred.
IpPrefix	This class represents an IP prefix, i.e., a contiguous block of IP addresses aligned on a power of two boundary (also known as an "IP subnet").
IslamicCalendar	`IslamicCalendar` is a subclass of `Calendar` that that implements the Islamic civil and religious calendars.
IslamicCalendar.CalculationType	enumeration of available calendar calculation types
IsoDep	Provides access to ISO-DEP (ISO 14443-4) properties and I/O operations on a `Tag`.
IsolatedContext	This class was deprecated in API level 24. New tests should be written using the Android Testing Support Library.
ItemAlignmentFacet	Optional facet provided by `RecyclerView.Adapter` or `RecyclerView.ViewHolder` for use in `HorizontalGridView` and `VerticalGridView`.
ItemAlignmentFacet.ItemAlignmentDef	Definition of an alignment position under a view.
ItemBridgeAdapter	Bridge from `Presenter` to `RecyclerView.Adapter`.
ItemBridgeAdapter.AdapterListener	Interface for listening to ViewHolder operations.
ItemBridgeAdapter.ViewHolder	ViewHolder for the ItemBridgeAdapter.
ItemBridgeAdapter.Wrapper	Interface for wrapping a view created by a Presenter into another view.
ItemBridgeAdapterShadowOverlayWrapper	A wrapper class working with `ItemBridgeAdapter` to wrap item view in a `ShadowOverlayContainer`.
ItemTouchHelper	This is a utility class to add swipe to dismiss and drag & drop support to RecyclerView.
ItemTouchHelper.Callback	This class is the contract between ItemTouchHelper and your application.
ItemTouchHelper.SimpleCallback	A simple wrapper to the default Callback which you can construct with drag and swipe directions and this class will handle the flag callbacks.
ItemTouchHelper.ViewDropHandler	An interface which can be implemented by LayoutManager for better integration with `ItemTouchHelper`.
ItemTouchUIUtil	Utility class for `ItemTouchHelper` which handles item transformations for different API versions.
Iterable<T>	Implementing this interface allows an object to be the target of the "for-each loop" statement.
Iterator<E>	An iterator over a collection.
IvParameterSpec	This class specifies an initialization vector (IV).

J

JapaneseCalendar	`JapaneseCalendar` is a subclass of `GregorianCalendar` that numbers years and eras based on the reigns of the Japanese emperors.
JarEntry	This class is used to represent a JAR file entry.
JarException	Signals that an error of some sort has occurred while reading from or writing to a JAR file.
JarFile	The `JarFile` class is used to read the contents of a jar file from any file that can be opened with `java.io.RandomAccessFile`.
JarInputStream	The `JarInputStream` class is used to read the contents of a JAR file from any input stream.
JarOutputStream	The `JarOutputStream` class is used to write the contents of a JAR file to any output stream.
JarURLConnection	A URL Connection to a Java ARchive (JAR) file or an entry in a JAR file.
JavascriptInterface	Annotation that allows exposing methods to JavaScript.
JetPlayer	JetPlayer provides access to JET content playback and control.
JetPlayer.OnJetEventListener	Handles the notification when the JET engine generates an event.
JobInfo	Container of data passed to the `JobScheduler` fully encapsulating the parameters required to schedule work against the calling application.
JobInfo.Builder	Builder class for constructing `JobInfo` objects.
JobInfo.TriggerContentUri	Information about a content URI modification that a job would like to trigger on.
JobParameters	Contains the parameters used to configure/identify your job.
JobScheduler	This is an API for scheduling various types of jobs against the framework that will be executed in your application's own process.
JobService	Entry point for the callback from the `JobScheduler`.
JSONArray	A dense indexed sequence of values.
JSONException	Thrown to indicate a problem with the JSON API.
JSONObject	A modifiable set of name/value mappings.
JsonReader	Reads a JSON (RFC 4627) encoded value as a stream of tokens.
JSONStringer	Implements `toString()` and `toString()`.
JsonToken	A structure, name or value type in a JSON-encoded string.
JSONTokener	Parses a JSON (RFC 4627) encoded string into the corresponding object.
JsonWriter	Writes a JSON (RFC 4627) encoded value to a stream, one token at a time.
JsPromptResult	Public class for handling JavaScript prompt requests.
JsResult	An instance of this class is passed as a parameter in various `WebChromeClient` action notifications.

K

Keep	Denotes that the annotated element should not be removed when the code is minified at build time.
Key	The Key interface is the top-level interface for all keys.
KeyAgreement	This class provides the functionality of a key agreement (or key exchange) protocol.
KeyAgreementSpi	This class defines the Service Provider Interface (SPI) for the `KeyAgreement` class.
Keyboard	Loads an XML description of a keyboard and stores the attributes of the keys.
Keyboard.Key	Class for describing the position and characteristics of a single key in the keyboard.
Keyboard.Row	Container for keys in the keyboard.
KeyboardShortcutGroup	A group of `KeyboardShortcutInfo`.
KeyboardShortcutInfo	Information about a Keyboard Shortcut.
KeyboardView	A view that renders a virtual `Keyboard`.
KeyboardView.OnKeyboardActionListener	Listener for virtual keyboard events.
KeyChain	The `KeyChain` class provides access to private keys and their corresponding certificate chains in credential storage.
KeyChainAliasCallback	The KeyChainAliasCallback is the callback for `choosePrivateKeyAlias(Activity, KeyChainAliasCallback, String[], Principal[], Uri, String)`.
KeyChainException	Thrown on problems accessing the `KeyChain`.
KeyCharacterMap	Describes the keys provided by a keyboard device and their associated labels.
KeyCharacterMap.KeyData	This class was deprecated in API level 11. instead use `getDisplayLabel(int)`, `getNumber(int)` and `get(int, int)`.
KeyCharacterMap.UnavailableException	Thrown by `load(int)` when a key character map could not be loaded.
KeyEvent	Object used to report key and button events.
KeyEvent.Callback
KeyEvent.DispatcherState	Use with `dispatch(Callback, DispatcherState, Object)` for more advanced key dispatching, such as long presses.
KeyEventCompat	Helper for accessing features in `KeyEvent` introduced after API level 4 in a backwards compatible fashion.
KeyException	This is the basic key exception.
KeyExpiredException	Indicates that a cryptographic operation failed because the employed key's validity end date is in the past.
KeyFactory	Key factories are used to convert keys (opaque cryptographic keys of type `Key`) into key specifications (transparent representations of the underlying key material), and vice versa.
KeyFactorySpi	This class defines the Service Provider Interface (SPI) for the `KeyFactory` class.
Keyframe	This class holds a time/value pair for an animation.
KeyGenerator	This class provides the functionality of a secret (symmetric) key generator.
KeyGeneratorSpi	This class defines the Service Provider Interface (SPI) for the `KeyGenerator` class.
KeyGenParameterSpec	`AlgorithmParameterSpec` for initializing a `KeyPairGenerator` or a `KeyGenerator` of the Android Keystore system.
KeyGenParameterSpec.Builder	Builder of `KeyGenParameterSpec` instances.
KeyguardManager	Class that can be used to lock and unlock the keyboard.
KeyguardManager.KeyguardLock	This class was deprecated in API level 13. Use `FLAG_DISMISS_KEYGUARD` and/or `FLAG_SHOW_WHEN_LOCKED` instead; this allows you to seamlessly hide the keyguard as your application moves in and out of the foreground and does not require that any special permissions be requested. Handle returned by `newKeyguardLock(String)` that allows you to disable / reenable the keyguard.
KeyguardManager.OnKeyguardExitResult	Callback passed to `exitKeyguardSecurely(KeyguardManager.OnKeyguardExitResult)` to notify caller of result.
KeyInfo	Information about a key from the Android Keystore system.
KeyListener	Interface for converting text key events into edit operations on an Editable class.
KeyManagementException	This is the general key management exception for all operations dealing with key management.
KeyManager	This is the base interface for JSSE key managers.
KeyManagerFactory	This class acts as a factory for key managers based on a source of key material.
KeyManagerFactorySpi	This class defines the Service Provider Interface (SPI) for the `KeyManagerFactory` class.
KeyNotYetValidException	Indicates that a cryptographic operation failed because the employed key's validity start date is in the future.
KeyPair	This class is a simple holder for a key pair (a public key and a private key).
KeyPairGenerator	The KeyPairGenerator class is used to generate pairs of public and private keys.
KeyPairGeneratorSpec	This class was deprecated in API level 23. Use `KeyGenParameterSpec` instead.
KeyPairGeneratorSpec.Builder	This class was deprecated in API level 23. Use `KeyGenParameterSpec.Builder` instead.
KeyPairGeneratorSpi	This class defines the Service Provider Interface (SPI) for the `KeyPairGenerator` class, which is used to generate pairs of public and private keys.
KeyPermanentlyInvalidatedException	Indicates that the key can no longer be used because it has been permanently invalidated.
KeyProperties	Properties of Android Keystore keys.
KeyProtection	Specification of how a key or key pair is secured when imported into the Android Keystore system.
KeyProtection.Builder	Builder of `KeyProtection` instances.
KeyRep	Standardized representation for serialized Key objects.
KeyRep.Type	Key type.
KeySpec	A (transparent) specification of the key material that constitutes a cryptographic key.
KeyStore	This class represents a storage facility for cryptographic keys and certificates.
KeyStore.Builder	A description of a to-be-instantiated KeyStore object.
KeyStore.CallbackHandlerProtection	A ProtectionParameter encapsulating a CallbackHandler.
KeyStore.Entry	A marker interface for `KeyStore` entry types.
KeyStore.LoadStoreParameter	A marker interface for `KeyStore` `load` and `store` parameters.
KeyStore.PasswordProtection	A password-based implementation of `ProtectionParameter`.
KeyStore.PrivateKeyEntry	A `KeyStore` entry that holds a `PrivateKey` and corresponding certificate chain.
KeyStore.ProtectionParameter	A marker interface for keystore protection parameters.
KeyStore.SecretKeyEntry	A `KeyStore` entry that holds a `SecretKey`.
KeyStore.TrustedCertificateEntry	A `KeyStore` entry that holds a trusted `Certificate`.
KeyStoreBuilderParameters	A parameters object for X509KeyManagers that encapsulates a List of KeyStore.Builders.
KeyStoreException	This is the generic KeyStore exception.
KeyStoreParameter	This class was deprecated in API level 23. Use `KeyProtection` instead.
KeyStoreParameter.Builder	This class was deprecated in API level 23. Use `KeyProtection.Builder` instead.
KeyStoreSpi	This class defines the Service Provider Interface (SPI) for the `KeyStore` class.

L

LabeledIntent	A special subclass of Intent that can have a custom label/icon associated with it.
LargeTest	This @interface was deprecated in API level 24. Use LargeTest instead. New tests should be written using the Android Testing Support Library.
LastOwnerException	This is an exception that is thrown whenever an attempt is made to delete the last owner of an Access Control List.
LauncherActivity	Displays a list of all activities which can be performed for a given intent.
LauncherActivity.IconResizer	Utility class to resize icons to match default icon size.
LauncherActivity.ListItem	An item in the list
LauncherActivityInfo	A representation of an activity that can belong to this user or a managed profile associated with this user.
LauncherApps	Class for retrieving a list of launchable activities for the current user and any associated managed profiles.
LauncherApps.Callback	Callbacks for package changes to this and related managed profiles.
LayerDrawable	A Drawable that manages an array of other Drawables.
LayeredSocketFactory	This interface was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
LayerRasterizer
Layout	A base class that manages text layout in visual elements on the screen.
Layout.Alignment
Layout.Directions	Stores information about bidirectional (left-to-right or right-to-left) text within the layout of a line.
LayoutAnimationController	A layout animation controller is used to animated a layout's, or a view group's, children.
LayoutAnimationController.AnimationParameters	The set of parameters that has to be attached to each view contained in the view group animated by the layout animation controller.
LayoutDirection	A class for defining layout directions.
LayoutInflater	Instantiates a layout XML file into its corresponding `View` objects.
LayoutInflater.Factory
LayoutInflater.Factory2
LayoutInflater.Filter	Hook to allow clients of the LayoutInflater to restrict the set of Views that are allowed to be inflated.
LayoutInflaterCompat	Helper for accessing features in `LayoutInflater` introduced after API level 4 in a backwards compatible fashion.
LayoutInflaterFactory	Used with `LayoutInflaterCompat.setFactory()`.
LayoutRes	Denotes that an integer parameter, field or method return value is expected to be a layout resource reference (e.g.
LayoutTransition	This class enables automatic animations on layout changes in ViewGroup objects.
LayoutTransition.TransitionListener	This interface is used for listening to starting and ending events for transitions.
LDAPCertStoreParameters	Parameters used as input for the LDAP `CertStore` algorithm.
LeadingMarginSpan	A paragraph style affecting the leading margin.
LeadingMarginSpan.LeadingMarginSpan2	An extended version of `LeadingMarginSpan`, which allows the implementor to specify the number of lines of the paragraph to which this object is attached that the "first line of paragraph" margin width will be applied to.
LeadingMarginSpan.Standard	The standard implementation of LeadingMarginSpan, which adjusts the margin but does not do any rendering.
LeanbackListPreferenceDialogFragment
LeanbackListPreferenceDialogFragment.AdapterMulti
LeanbackListPreferenceDialogFragment.AdapterSingle
LeanbackListPreferenceDialogFragment.ViewHolder
LeanbackListPreferenceDialogFragment.ViewHolder.OnItemClickListener
LeanbackPreferenceDialogFragment
LeanbackPreferenceFragment	This fragment provides a fully decorated leanback-style preference fragment, including a list background and header.
LeanbackSettingsFragment
LensShadingMap	Immutable class for describing a `4 x N x M` lens shading map of floats.
Level	The Level class defines a set of standard logging levels that can be used to control logging output.
LevelListDrawable	A resource that manages a number of alternate Drawables, each assigned a maximum numerical value.
LexicalHandler	SAX2 extension handler for lexical events.
LightingColorFilter	A color filter that can be used to simulate simple lighting effects.
LinearGradient
LinearInterpolator	An interpolator where the rate of change is constant
LinearLayout	A Layout that arranges its children in a single column or a single row.
LinearLayout.LayoutParams	Per-child layout information associated with ViewLinearLayout.
LinearLayoutCompat	A Layout that arranges its children in a single column or a single row.
LinearLayoutCompat.LayoutParams	Per-child layout information associated with ViewLinearLayout.
LinearLayoutManager	A `RecyclerView.LayoutManager` implementation which provides similar functionality to `ListView`.
LinearLayoutManager.LayoutChunkResult
LinearOutSlowInInterpolator	Interpolator corresponding to `linear_out_slow_in`.
LinearSmoothScroller	`RecyclerView.SmoothScroller` implementation which uses `LinearInterpolator` until the target position becames a child of the RecyclerView and then uses `DecelerateInterpolator` to slowly approach to target position.
LineBackgroundSpan
LineHeightSpan
LineHeightSpan.WithDensity
LineNumberInputStream	This class was deprecated in API level 1. This class incorrectly assumes that bytes adequately represent characters. As of JDK 1.1, the preferred way to operate on character streams is via the new character-stream classes, which include a class for counting line numbers.
LineNumberReader	A buffered character-input stream that keeps track of line numbers.
LinkAddress	Identifies an IP address on a network link.
LinkageError	Subclasses of `LinkageError` indicate that a class has some dependency on another class; however, the latter class has incompatibly changed after the compilation of the former class.
LinkedBlockingDeque<E>	An optionally-bounded blocking deque based on linked nodes.
LinkedBlockingQueue<E>	An optionally-bounded blocking queue based on linked nodes.
LinkedHashMap<K, V>	Hash table and linked list implementation of the `Map` interface, with predictable iteration order.
LinkedHashSet<E>	Hash table and linked list implementation of the `Set` interface, with predictable iteration order.
LinkedList<E>	Doubly-linked list implementation of the `List` and `Deque` interfaces.
LinkedTransferQueue<E>	An unbounded `TransferQueue` based on linked nodes.
Linkify	Linkify take a piece of text and a regular expression and turns all of the regex matches in the text into clickable links.
Linkify.MatchFilter	MatchFilter enables client code to have more control over what is allowed to match and become a link, and what is not.
Linkify.TransformFilter	TransformFilter enables client code to have more control over how matched patterns are represented as URLs.
LinkMovementMethod	A movement method that traverses links in the text buffer and scrolls if necessary.
LinkProperties	Describes the properties of a network link.
List<E>	An ordered collection (also known as a sequence).
ListActivity	An activity that displays a list of items by binding to a data source such as an array or Cursor, and exposes event handlers when the user selects an item.
ListAdapter	Extended `Adapter` that is the bridge between a `ListView` and the data that backs the list.
ListChangeRegistry	Utility class for managing ObservableList callbacks.
ListFragment	A fragment that displays a list of items by binding to a data source such as an array or Cursor, and exposes event handlers when the user selects an item.
ListFragment	Static library support version of the framework's `ListFragment`.
ListIterator<E>	An iterator for lists that allows the programmer to traverse the list in either direction, modify the list during iteration, and obtain the iterator's current position in the list.
ListPopupWindow	Static library support version of the framework's `ListPopupWindow`.
ListPopupWindow	A ListPopupWindow anchors itself to a host view and displays a list of choices.
ListPopupWindowCompat	Helper for accessing features in ListPopupWindow introduced after API level 4 in a backwards compatible fashion.
ListPreference	A `Preference` that displays a list of entries as a dialog.
ListPreference	A `Preference` that displays a list of entries as a dialog.
ListPreferenceDialogFragment
ListPreferenceDialogFragmentCompat
ListResourceBundle	`ListResourceBundle` is an abstract subclass of `ResourceBundle` that manages resources for a locale in a convenient and easy to use list.
ListRow	A `Row` composed of a optional `HeaderItem`, and an `ObjectAdapter` describing the items in the list.
ListRowHoverCardView	ListRowHoverCardView contains a title and description.
ListRowPresenter	ListRowPresenter renders `ListRow` using a `HorizontalGridView` hosted in a `ListRowView`.
ListRowPresenter.SelectItemViewHolderTask	A task on the ListRowPresenter.ViewHolder that can select an item by position in the HorizontalGridView and perform an optional item task on it.
ListRowPresenter.ViewHolder	ViewHolder for the ListRowPresenter.
ListRowView	ListRowView is a `ViewGroup` which always contains a `HorizontalGridView`, and may optionally include a hover card.
ListView	A view that shows items in a vertically scrolling list.
ListView.FixedViewInfo	A class that represents a fixed view in a list, for example a header at the top or a footer at the bottom.
ListViewAutoScrollHelper	An implementation of `AutoScrollHelper` that knows how to scroll through a `ListView`.
ListViewCompat	Helper for accessing features in `ListView` introduced after API level 4 in a backwards compatible fashion.
LiveFolders	This class was deprecated in API level 14. Live folders are no longer supported by Android. These have been replaced by the new AppWidget Collection APIs introduced in `HONEYCOMB`. These provide all of the features of live folders plus many more. The use of live folders is greatly discouraged because of security issues they introduce -- publishing a live folder requires making all data show for the live folder available to all applications with no permissions protecting it.
Loader<D>	A class that performs asynchronous loading of data.
Loader<D>	Static library support version of the framework's `Loader`.
Loader.ForceLoadContentObserver	An implementation of a ContentObserver that takes care of connecting it to the Loader to have the loader re-load its data when the observer is told it has changed.
Loader.ForceLoadContentObserver	An implementation of a ContentObserver that takes care of connecting it to the Loader to have the loader re-load its data when the observer is told it has changed.
Loader.OnLoadCanceledListener<D>	Interface that is implemented to discover when a Loader has been canceled before it finished loading its data.
Loader.OnLoadCanceledListener<D>	Interface that is implemented to discover when a Loader has been canceled before it finished loading its data.
Loader.OnLoadCompleteListener<D>	Interface that is implemented to discover when a Loader has finished loading its data.
Loader.OnLoadCompleteListener<D>	Interface that is implemented to discover when a Loader has finished loading its data.
LoaderManager	Interface associated with an `Activity` or `Fragment` for managing one or more `Loader` instances associated with it.
LoaderManager	Static library support version of the framework's `LoaderManager`.
LoaderManager.LoaderCallbacks<D>	Callback interface for a client to interact with the manager.
LoaderManager.LoaderCallbacks<D>	Callback interface for a client to interact with the manager.
LoaderTestCase	A convenience class for testing `Loader`s.
LocalActivityManager	This class was deprecated in API level 13. Use the new `Fragment` and `FragmentManager` APIs instead; these are also available on older platforms through the Android compatibility package.
LocalBroadcastManager	Helper to register for and send broadcasts of Intents to local objects within your process.
Locale	A `Locale` object represents a specific geographical, political, or cultural region.
Locale.Builder	`Builder` is used to build instances of `Locale` from values configured by the setters.
Locale.Category	Enum for locale categories.
LocaleDisplayNames	Returns display names of ULocales and components of ULocales.
LocaleDisplayNames.DialectHandling	Enum used in `getInstance(ULocale, DialectHandling)`.
LocaleList	LocaleList is an immutable list of Locales, typically used to keep an ordered list of user preferences for locales.
LocaleSpan	Changes the `Locale` of the text to which the span is attached.
LocalServerSocket	Non-standard class for creating an inbound UNIX-domain socket in the Linux abstract namespace.
LocalSocket	Creates a (non-server) socket in the UNIX-domain namespace.
LocalSocketAddress	A UNIX-domain (AF_LOCAL) socket address.
LocalSocketAddress.Namespace	The namespace that this address exists in.
Location	A data class representing a geographic location.
LocationListener	Used for receiving notifications from the LocationManager when the location has changed.
LocationManager	This class provides access to the system location services.
LocationProvider	An abstract superclass for location providers.
Locator	Interface for associating a SAX event with a document location.
Locator2	SAX2 extension to augment the entity information provided though a `Locator`.
Locator2Impl	SAX2 extension helper for holding additional Entity information, implementing the `Locator2` interface.
LocatorImpl	Provide an optional convenience implementation of Locator.
Lock	`Lock` implementations provide more extensive locking operations than can be obtained using `synchronized` methods and statements.
LockSupport	Basic thread blocking primitives for creating locks and other synchronization classes.
Log	API for sending log output.
Logger	A Logger object is used to log messages for a specific system or application component.
LoggingMXBean	The management interface for the logging facility.
LoggingPermission	Legacy security code; do not use.
LoginException	This is the basic login exception.
LoginFilter	Abstract class for filtering login-related text (user names and passwords)
LoginFilter.PasswordFilterGMail	This filter is compatible with GMail passwords which restricts characters to the Latin-1 (ISO8859-1) char set.
LoginFilter.UsernameFilterGeneric	This filter rejects characters in the user name that are not compatible with Google login.
LoginFilter.UsernameFilterGMail	This filter rejects characters in the user name that are not compatible with GMail account creation.
LogManager	There is a single global LogManager object that is used to maintain a set of shared state about Loggers and log services.
LogPrinter	Implementation of a `Printer` that sends its output to the system log.
LogRecord	LogRecord objects are used to pass logging requests between the logging framework and individual log Handlers.
Long	The `Long` class wraps a value of the primitive type `long` in an object.
Long2	Vector version of the basic long type.
Long2	Class for exposing the native RenderScript long2 type back to the Android system.
Long3	Vector version of the basic long type.
Long3	Class for exposing the native RenderScript long3 type back to the Android system.
Long4	Vector version of the basic long type.
Long4	Class for exposing the native RenderScript long4 type back to the Android system.
LongAccumulator	One or more variables that together maintain a running `long` value updated using a supplied function.
LongAdder	One or more variables that together maintain an initially zero `long` sum.
LongBinaryOperator	Represents an operation upon two `long`-valued operands and producing a `long`-valued result.
LongBuffer	A long buffer.
LongConsumer	Represents an operation that accepts a single `long`-valued argument and returns no result.
LongFunction<R>	Represents a function that accepts a long-valued argument and produces a result.
LongPredicate	Represents a predicate (boolean-valued function) of one `long`-valued argument.
LongSparseArray<E>	SparseArray mapping longs to Objects, a version of the platform's `LongSparseArray` that can be used on older versions of the platform.
LongSparseArray<E>	SparseArray mapping longs to Objects.
LongStream	A sequence of primitive long-valued elements supporting sequential and parallel aggregate operations.
LongStream.Builder	A mutable builder for a `LongStream`.
LongSummaryStatistics	A state object for collecting statistics such as count, min, max, sum, and average.
LongSupplier	Represents a supplier of `long`-valued results.
LongToDoubleFunction	Represents a function that accepts a long-valued argument and produces a double-valued result.
LongToIntFunction	Represents a function that accepts a long-valued argument and produces an int-valued result.
LongUnaryOperator	Represents an operation on a single `long`-valued operand that produces a `long`-valued result.
Looper	Class used to run a message loop for a thread.
LoudnessEnhancer	LoudnessEnhancer is an audio effect for increasing audio loudness.
LruCache<K, V>	Static library version of `LruCache`.
LruCache<K, V>	A cache that holds strong references to a limited number of values.
LSException	Parser or write operations may throw an `LSException` if the processing is stopped.
LSInput	This interface represents an input source for data.
LSOutput	This interface represents an output destination for data.
LSParser	An interface to an object that is able to build, or augment, a DOM tree from various input sources.
LSParserFilter	`LSParserFilter`s provide applications the ability to examine nodes as they are being constructed while parsing.
LSResourceResolver	`LSResourceResolver` provides a way for applications to redirect references to external resources.
LSSerializer	A `LSSerializer` provides an API for serializing (writing) a DOM document out into XML.

M

Mac	This class provides the functionality of a "Message Authentication Code" (MAC) algorithm.
MacSpi	This class defines the Service Provider Interface (SPI) for the `Mac` class.
MailTo	MailTo URL parser This class parses a mailto scheme URL and then can be queried for the parsed parameters.
MainThread	Denotes that the annotated method should only be called on the main thread.
MalformedInputException	Checked exception thrown when an input byte sequence is not legal for given charset, or an input character sequence is not a legal sixteen-bit Unicode sequence.
MalformedJsonException	Thrown when a reader encounters malformed JSON.
MalformedParameterizedTypeException	Thrown when a semantically malformed parameterized type is encountered by a reflective method that needs to instantiate it.
MalformedURLException	Thrown to indicate that a malformed URL has occurred.
ManagerFactoryParameters	This class is the base interface for providing algorithm-specific information to a KeyManagerFactory or TrustManagerFactory.
Manifest
Manifest	The Manifest class is used to maintain Manifest entry names and their associated Attributes.
Manifest.permission
Manifest.permission_group
Map<K, V>	An object that maps keys to values.
Map.Entry<K, V>	A map entry (key-value pair).
MapChangeRegistry	Utility class for managing ObservableMap callbacks.
MappedByteBuffer	A direct byte buffer whose content is a memory-mapped region of a file.
MarginLayoutParamsCompat	Helper for accessing API features in `MarginLayoutParams` added after API 4.
MaskFilter	MaskFilter is the base class for object that perform transformations on an alpha-channel mask before drawing it.
MaskFilterSpan
Matcher	An engine that performs match operations on a character sequence by interpreting a `Pattern`.
MatchResult	The result of a match operation.
Math	The class `Math` contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
MathContext	The `MathContext` immutable class encapsulates the settings understood by the operator methods of the `BigDecimal` class (and potentially other classes).
MathContext	Immutable objects describing settings such as rounding mode and digit precision for the numerical operations provided by class `BigDecimal`.
Matrix	The Matrix class holds a 3x3 matrix for transforming coordinates.
Matrix	Matrix math utilities.
Matrix.ScaleToFit	Controlls how the src rect should align into the dst rect for setRectToRect().
Matrix2f	Class for exposing the native RenderScript rs_matrix2x2 type back to the Android system.
Matrix2f	Class for exposing the native RenderScript rs_matrix2x2 type back to the Android system.
Matrix3f	Class for exposing the native RenderScript rs_matrix3x3 type back to the Android system.
Matrix3f	Class for exposing the native RenderScript rs_matrix3x3 type back to the Android system.
Matrix4f	Class for exposing the native RenderScript rs_matrix4x4 type back to the Android system.
Matrix4f	Class for exposing the native RenderScript rs_matrix4x4 type back to the Android system.
MatrixCursor	A mutable cursor implementation backed by an array of `Object`s.
MatrixCursor.RowBuilder	Builds a row of values using either of these approaches: Values can be added with explicit column ordering using `add(Object)`, which starts from the left-most column and adds one column value at a time.
Measure	An amount of a specified unit, consisting of a Number and a Unit.
MeasureFormat	A formatter for Measure objects.
MeasureFormat.FormatWidth	Formatting width enum.
MeasureUnit	A unit such as length, mass, volume, currency, etc.
MediaActionSound	A class for producing sounds that match those produced by various actions taken by the media and camera APIs.
MediaBrowser	Browses media content offered by a link MediaBrowserService.
MediaBrowser.ConnectionCallback	Callbacks for connection related events.
MediaBrowser.ItemCallback	Callback for receiving the result of `getItem(String, MediaBrowser.ItemCallback)`.
MediaBrowser.MediaItem	A class with information on a single media item for use in browsing media.
MediaBrowser.SubscriptionCallback	Callbacks for subscription related events.
MediaBrowserCompat	Browses media content offered by a `MediaBrowserServiceCompat`.
MediaBrowserCompat.ConnectionCallback	Callbacks for connection related events.
MediaBrowserCompat.ItemCallback	Callback for receiving the result of `getItem(String, MediaBrowserCompat.ItemCallback)`.
MediaBrowserCompat.MediaItem	A class with information on a single media item for use in browsing media.
MediaBrowserCompat.SubscriptionCallback	Callbacks for subscription related events.
MediaBrowserService	Base class for media browse services.
MediaBrowserService.BrowserRoot	Contains information that the browser service needs to send to the client when first connected.
MediaBrowserService.Result<T>	Completion handler for asynchronous callback methods in `MediaBrowserService`.
MediaBrowserServiceCompat	Base class for media browse services.
MediaBrowserServiceCompat.BrowserRoot	Contains information that the browser service needs to send to the client when first connected.
MediaBrowserServiceCompat.Result<T>	Completion handler for asynchronous callback methods in `MediaBrowserServiceCompat`.
MediaButtonReceiver	A media button receiver receives and helps translate hardware media playback buttons, such as those found on wired and wireless headsets, into the appropriate callbacks in your app.
MediaCodec	MediaCodec class can be used to access low-level media codecs, i.e.
MediaCodec.BufferInfo	Per buffer metadata includes an offset and size specifying the range of valid data in the associated codec (output) buffer.
MediaCodec.Callback	MediaCodec callback interface.
MediaCodec.CodecException	Thrown when an internal codec error occurs.
MediaCodec.CryptoException	Thrown when a crypto error occurs while queueing a secure input buffer.
MediaCodec.CryptoInfo	Metadata describing the structure of a (at least partially) encrypted input sample.
MediaCodec.CryptoInfo.Pattern	Metadata describing an encryption pattern for the protected bytes in a subsample.
MediaCodec.OnFrameRenderedListener	Listener to be called when an output frame has rendered on the output surface
MediaCodecInfo	Provides information about a given media codec available on the device.
MediaCodecInfo.AudioCapabilities	A class that supports querying the audio capabilities of a codec.
MediaCodecInfo.CodecCapabilities	Encapsulates the capabilities of a given codec component.
MediaCodecInfo.CodecProfileLevel	Encapsulates the profiles available for a codec component.
MediaCodecInfo.EncoderCapabilities	A class that supports querying the encoding capabilities of a codec.
MediaCodecInfo.VideoCapabilities	A class that supports querying the video capabilities of a codec.
MediaCodecList	Allows you to enumerate available codecs, each specified as a `MediaCodecInfo` object, find a codec supporting a given format and query the capabilities of a given codec.
MediaControlIntent	Constants for media control intents.
MediaController	Allows an app to interact with an ongoing media session.
MediaController	A view containing controls for a MediaPlayer.
MediaController.Callback	Callback for receiving updates from the session.
MediaController.MediaPlayerControl
MediaController.PlaybackInfo	Holds information about the current playback and how audio is handled for this session.
MediaController.TransportControls	Interface for controlling media playback on a session.
MediaControllerCompat	Allows an app to interact with an ongoing media session.
MediaControllerCompat.Callback	Callback for receiving updates on from the session.
MediaControllerCompat.PlaybackInfo	Holds information about the way volume is handled for this session.
MediaControllerCompat.TransportControls	Interface for controlling media playback on a session.
MediaControllerGlue	A helper class for implementing a glue layer between a `PlaybackOverlayFragment` and a `MediaControllerCompat`.
MediaCrypto	MediaCrypto class can be used in conjunction with `MediaCodec` to decode encrypted media data.
MediaCryptoException	Exception thrown if MediaCrypto object could not be instantiated or if unable to perform an operation on the MediaCrypto object.
MediaDataSource	For supplying media data to the framework.
MediaDescription	A simple set of metadata for a media item suitable for display.
MediaDescription.Builder	Builder for `MediaDescription` objects.
MediaDescriptionCompat	A simple set of metadata for a media item suitable for display.
MediaDescriptionCompat.Builder	Builder for `MediaDescriptionCompat` objects.
MediaDrm	MediaDrm can be used to obtain keys for decrypting protected media streams, in conjunction with `MediaCrypto`.
MediaDrm.CryptoSession	In addition to supporting decryption of DASH Common Encrypted Media, the MediaDrm APIs provide the ability to securely deliver session keys from an operator's session key server to a client device, based on the factory-installed root of trust, and then perform encrypt, decrypt, sign and verify operations with the session key on arbitrary user data.
MediaDrm.KeyRequest	Contains the opaque data an app uses to request keys from a license server
MediaDrm.KeyStatus	Defines the status of a key.
MediaDrm.MediaDrmStateException	Thrown when an unrecoverable failure occurs during a MediaDrm operation.
MediaDrm.OnEventListener	Interface definition for a callback to be invoked when a drm event occurs
MediaDrm.OnExpirationUpdateListener	Interface definition for a callback to be invoked when a drm session expiration update occurs
MediaDrm.OnKeyStatusChangeListener	Interface definition for a callback to be invoked when the keys in a drm session change states.
MediaDrm.ProvisionRequest	Contains the opaque data an app uses to request a certificate from a provisioning server
MediaDrmException	Base class for MediaDrm exceptions
MediaDrmResetException	This exception is thrown when the MediaDrm instance has become unusable due to a restart of the mediaserver process.
MediaExtractor	MediaExtractor facilitates extraction of demuxed, typically encoded, media data from a data source.
MediaFormat	Encapsulates the information describing the format of media data, be it audio or video.
MediaItemMetadata	Constants for specifying metadata about a media item as a `Bundle`.
MediaItemStatus	Describes the playback status of a media item.
MediaItemStatus.Builder	Builder for `media item status objects`.
MediaMetadata	Contains metadata about an item, such as the title, artist, etc.
MediaMetadata.Builder	Use to build MediaMetadata objects.
MediaMetadataCompat	Contains metadata about an item, such as the title, artist, etc.
MediaMetadataCompat.Builder	Use to build MediaMetadata objects.
MediaMetadataEditor	This class was deprecated in API level 21. Use `MediaMetadata` instead together with `MediaSession`.
MediaMetadataRetriever	MediaMetadataRetriever class provides a unified interface for retrieving frame and meta data from an input media file.
MediaMuxer	MediaMuxer facilitates muxing elementary streams.
MediaMuxer.OutputFormat	Defines the output format.
MediaPlayer	MediaPlayer class can be used to control playback of audio/video files and streams.
MediaPlayer.OnBufferingUpdateListener	Interface definition of a callback to be invoked indicating buffering status of a media resource being streamed over the network.
MediaPlayer.OnCompletionListener	Interface definition for a callback to be invoked when playback of a media source has completed.
MediaPlayer.OnErrorListener	Interface definition of a callback to be invoked when there has been an error during an asynchronous operation (other errors will throw exceptions at method call time).
MediaPlayer.OnInfoListener	Interface definition of a callback to be invoked to communicate some info and/or warning about the media or its playback.
MediaPlayer.OnPreparedListener	Interface definition for a callback to be invoked when the media source is ready for playback.
MediaPlayer.OnSeekCompleteListener	Interface definition of a callback to be invoked indicating the completion of a seek operation.
MediaPlayer.OnTimedMetaDataAvailableListener	Interface definition of a callback to be invoked when a track has timed metadata available.
MediaPlayer.OnTimedTextListener	Interface definition of a callback to be invoked when a timed text is available for display.
MediaPlayer.OnVideoSizeChangedListener	Interface definition of a callback to be invoked when the video size is first known or updated
MediaPlayer.TrackInfo	Class for MediaPlayer to return each audio/video/subtitle track's metadata.
MediaProjection	A token granting applications the ability to capture screen contents and/or record system audio.
MediaProjection.Callback	Callbacks for the projection session.
MediaProjectionManager	Manages the retrieval of certain types of `MediaProjection` tokens.
MediaRecorder	Used to record audio and video.
MediaRecorder.AudioEncoder	Defines the audio encoding.
MediaRecorder.AudioSource	Defines the audio source.
MediaRecorder.OnErrorListener	Interface definition for a callback to be invoked when an error occurs while recording.
MediaRecorder.OnInfoListener	Interface definition for a callback to be invoked when an error occurs while recording.
MediaRecorder.OutputFormat	Defines the output format.
MediaRecorder.VideoEncoder	Defines the video encoding.
MediaRecorder.VideoSource	Defines the video source.
MediaRouteActionProvider	The media route action provider displays a `media route button` in the application's `ActionBar` to allow the user to select routes and to control the currently selected route.
MediaRouteActionProvider	The media route action provider displays a `media route button` in the application's `ActionBar` to allow the user to select routes and to control the currently selected route.
MediaRouteButton
MediaRouteButton	The media route button allows the user to select routes and to control the currently selected route.
MediaRouteChooserDialog	This class implements the route chooser dialog for `MediaRouter`.
MediaRouteChooserDialogFragment	Media route chooser dialog fragment.
MediaRouteControllerDialog	This class implements the route controller dialog for `MediaRouter`.
MediaRouteControllerDialogFragment	Media route controller dialog fragment.
MediaRouteDescriptor	Describes the properties of a route.
MediaRouteDescriptor.Builder	Builder for `media route descriptors`.
MediaRouteDialogFactory	The media route dialog factory is responsible for creating the media route chooser and controller dialogs as needed.
MediaRouteDiscoveryFragment	Media route discovery fragment.
MediaRouteDiscoveryRequest	Describes the kinds of routes that the media router would like to discover and whether to perform active scanning.
MediaRouteProvider	Media route providers are used to publish additional media routes for use within an application.
MediaRouteProvider.Callback	Callback which is invoked when route information becomes available or changes.
MediaRouteProvider.ProviderMetadata	Describes properties of the route provider's implementation.
MediaRouteProvider.RouteController	Provides control over a particular route.
MediaRouteProviderDescriptor	Describes the state of a media route provider and the routes that it publishes.
MediaRouteProviderDescriptor.Builder	Builder for `media route provider descriptors`.
MediaRouteProviderService	Base class for media route provider services.
MediaRouter	MediaRouter allows applications to control the routing of media channels and streams from the current device to external speakers and destination devices.
MediaRouter	MediaRouter allows applications to control the routing of media channels and streams from the current device to external speakers and destination devices.
MediaRouter.Callback	Interface for receiving events about media routing changes.
MediaRouter.Callback	Interface for receiving events about media routing changes.
MediaRouter.ControlRequestCallback	Callback which is invoked with the result of a media control request.
MediaRouter.ProviderInfo	Provides information about a media route provider.
MediaRouter.RouteCategory	Definition of a category of routes.
MediaRouter.RouteGroup	Information about a route that consists of multiple other routes in a group.
MediaRouter.RouteInfo	Information about a media route.
MediaRouter.RouteInfo	Provides information about a media route.
MediaRouter.SimpleCallback	Stub implementation of `MediaRouter.Callback`.
MediaRouter.UserRouteInfo	Information about a route that the application may define and modify.
MediaRouter.VolumeCallback	Interface for receiving events about volume changes.
MediaRouteSelector	Describes the capabilities of routes that applications would like to discover and use.
MediaRouteSelector.Builder	Builder for `media route selectors`.
MediaScannerConnection	MediaScannerConnection provides a way for applications to pass a newly created or downloaded media file to the media scanner service.
MediaScannerConnection.MediaScannerConnectionClient	An interface for notifying clients of MediaScannerConnection when a connection to the MediaScanner service has been established and when the scanning of a file has completed.
MediaScannerConnection.OnScanCompletedListener	Interface for notifying clients of the result of scanning a requested media file.
MediaSession	Allows interaction with media controllers, volume keys, media buttons, and transport controls.
MediaSession.Callback	Receives media buttons, transport controls, and commands from controllers and the system.
MediaSession.QueueItem	A single item that is part of the play queue.
MediaSession.Token	Represents an ongoing session.
MediaSessionCompat	Allows interaction with media controllers, volume keys, media buttons, and transport controls.
MediaSessionCompat.Callback	Receives transport controls, media buttons, and commands from controllers and the system.
MediaSessionCompat.OnActiveChangeListener
MediaSessionCompat.QueueItem	A single item that is part of the play queue.
MediaSessionCompat.Token	Represents an ongoing session.
MediaSessionManager	Provides support for interacting with `media sessions` that applications have published to express their ongoing media playback state.
MediaSessionManager.OnActiveSessionsChangedListener	Listens for changes to the list of active sessions.
MediaSessionStatus	Describes the playback status of a media session.
MediaSessionStatus.Builder	Builder for `media session status objects`.
MediaStore	The Media provider contains meta data for all available media on both internal and external storage devices.
MediaStore.Audio	Container for all audio content.
MediaStore.Audio.AlbumColumns	Columns representing an album
MediaStore.Audio.Albums	Contains artists for audio files
MediaStore.Audio.ArtistColumns	Columns representing an artist
MediaStore.Audio.Artists	Contains artists for audio files
MediaStore.Audio.Artists.Albums	Sub-directory of each artist containing all albums on which a song by the artist appears.
MediaStore.Audio.AudioColumns	Columns for audio file that show up in multiple tables.
MediaStore.Audio.Genres	Contains all genres for audio files
MediaStore.Audio.Genres.Members	Sub-directory of each genre containing all members.
MediaStore.Audio.GenresColumns	Columns representing an audio genre
MediaStore.Audio.Media
MediaStore.Audio.Playlists	Contains playlists for audio files
MediaStore.Audio.Playlists.Members	Sub-directory of each playlist containing all members.
MediaStore.Audio.PlaylistsColumns	Columns representing a playlist
MediaStore.Audio.Radio
MediaStore.Files	Media provider table containing an index of all files in the media storage, including non-media files.
MediaStore.Files.FileColumns	Fields for master table for all media files.
MediaStore.Images	Contains meta data for all available images.
MediaStore.Images.ImageColumns
MediaStore.Images.Media
MediaStore.Images.Thumbnails	This class allows developers to query and get two kinds of thumbnails: MINI_KIND: 512 x 384 thumbnail MICRO_KIND: 96 x 96 thumbnail
MediaStore.MediaColumns	Common fields for most MediaProvider tables
MediaStore.Video
MediaStore.Video.Media
MediaStore.Video.Thumbnails	This class allows developers to query and get two kinds of thumbnails: MINI_KIND: 512 x 384 thumbnail MICRO_KIND: 96 x 96 thumbnail
MediaStore.Video.VideoColumns
MediaSync	MediaSync class can be used to synchronously playback audio and video streams.
MediaSync.Callback	MediaSync callback interface.
MediaSync.OnErrorListener	Interface definition of a callback to be invoked when there has been an error during an asynchronous operation (other errors will throw exceptions at method call time).
MediaSyncEvent	The MediaSyncEvent class defines events that can be used to synchronize playback or capture actions between different players and recorders.
MediaTimestamp	An immutable object that represents the linear correlation between the media time and the system time.
MediumTest	This @interface was deprecated in API level 24. Use MediumTest instead. New tests should be written using the Android Testing Support Library.
Member	Member is an interface that reflects identifying information about a single member (a field or a method) or a constructor.
MemoryFile	MemoryFile is a wrapper for the Linux ashmem driver.
MemoryHandler	`Handler` that buffers requests in a circular buffer in memory.
Menu	Interface for managing the items in a menu.
MenuCompat	Helper for accessing features in `Menu` introduced after API level 4 in a backwards compatible fashion.
MenuInflater	This class is used to instantiate menu XML files into Menu objects.
MenuItem	Interface for direct access to a previously created menu item.
MenuItem.OnActionExpandListener	Interface definition for a callback to be invoked when a menu item marked with `SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW` is expanded or collapsed.
MenuItem.OnMenuItemClickListener	Interface definition for a callback to be invoked when a menu item is clicked.
MenuItemCompat	Helper for accessing features in `MenuItem` introduced after API level 4 in a backwards compatible fashion.
MenuItemCompat.OnActionExpandListener	Interface definition for a callback to be invoked when a menu item marked with `SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW` is expanded or collapsed.
MenuRes	Denotes that an integer parameter, field or method return value is expected to be a menu resource reference.
MergeCursor	A convience class that lets you present an array of Cursors as a single linear Cursor.
Message	Defines a message containing a description and arbitrary data object that can be sent to a `Handler`.
MessageDigest	This MessageDigest class provides applications the functionality of a message digest algorithm, such as SHA-1 or SHA-256.
MessageDigestSpi	This class defines the Service Provider Interface (SPI) for the `MessageDigest` class, which provides the functionality of a message digest algorithm, such as MD5 or SHA.
MessageFormat	[icu enhancement] ICU's replacement for `MessageFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
MessageFormat	`MessageFormat` provides a means to produce concatenated messages in a language-neutral way.
MessageFormat.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `MessageFormat.formatToCharacterIterator`.
MessageFormat.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `MessageFormat.formatToCharacterIterator`.
MessagePattern	Parses and represents ICU MessageFormat patterns.
MessagePattern.ApostropheMode	Mode for when an apostrophe starts quoted literal text for MessageFormat output.
MessagePattern.ArgType	Argument type constants.
MessagePattern.Part	A message pattern "part", representing a pattern parsing event.
MessagePattern.Part.Type	Part type constants.
MessagePdu	A parcelable list of PDUs representing contents of a possibly multi-part SMS.
MessageQueue	Low-level class holding the list of messages to be dispatched by a `Looper`.
MessageQueue.IdleHandler	Callback interface for discovering when a thread is going to block waiting for more messages.
MessageQueue.OnFileDescriptorEventListener	A listener which is invoked when file descriptor related events occur.
Messenger	Reference to a Handler, which others can use to send messages to it.
MetaKeyKeyListener	This base class encapsulates the behavior for tracking the state of meta keys such as SHIFT, ALT and SYM as well as the pseudo-meta state of selecting text.
MeteringRectangle	An immutable class to represent a rectangle `(x, y, width, height)` with an additional weight component.
Method	A `Method` provides information about, and access to, a single method on a class or interface.
MetricAffectingSpan	The classes that affect character-level text formatting in a way that changes the width or height of characters extend this class.
MGF1ParameterSpec	This class specifies the set of parameters used with mask generation function MGF1 in OAEP Padding and RSA-PSS signature scheme, as defined in the PKCS #1 v2.1 standard.
MidiDevice	This class is used for sending and receiving data to and from a MIDI device Instances of this class are created by `openDevice(MidiDeviceInfo, MidiManager.OnDeviceOpenedListener, Handler)`.
MidiDevice.MidiConnection	This class represents a connection between the output port of one device and the input port of another.
MidiDeviceInfo	This class contains information to describe a MIDI device.
MidiDeviceInfo.PortInfo	Contains information about an input or output port.
MidiDeviceService	A service that implements a virtual MIDI device.
MidiDeviceStatus	This is an immutable class that describes the current status of a MIDI device's ports.
MidiInputPort	This class is used for sending data to a port on a MIDI device
MidiManager	This class is the public application interface to the MIDI service.
MidiManager.DeviceCallback	Callback class used for clients to receive MIDI device added and removed notifications
MidiManager.OnDeviceOpenedListener	Listener class used for receiving the results of `openDevice(MidiDeviceInfo, MidiManager.OnDeviceOpenedListener, Handler)` and `openBluetoothDevice(BluetoothDevice, MidiManager.OnDeviceOpenedListener, Handler)`
MidiOutputPort	This class is used for receiving data from a port on a MIDI device
MidiReceiver	Interface for sending and receiving data to and from a MIDI device.
MidiSender	Interface provided by a device to allow attaching MidiReceivers to a MIDI device.
MifareClassic	Provides access to MIFARE Classic properties and I/O operations on a `Tag`.
MifareUltralight	Provides access to MIFARE Ultralight properties and I/O operations on a `Tag`.
MimeTypeMap	Two-way map that maps MIME-types to file extensions and vice versa.
MissingFormatArgumentException	Unchecked exception thrown when there is a format specifier which does not have a corresponding argument or if an argument index refers to an argument that does not exist.
MissingFormatWidthException	Unchecked exception thrown when the format width is required.
MissingResourceException	Signals that a resource is missing.
MockApplication	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockContentProvider	Mock implementation of ContentProvider.
MockContentResolver	An extension of `ContentResolver` that is designed for testing.
MockContext	A mock `Context` class.
MockCursor	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockDialogInterface	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockPackageManager	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
MockResources	This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.
Modifier	The Modifier class provides `static` methods and constants to decode class and member access modifiers.
MonthDisplayHelper	Helps answer common questions that come up when displaying a month in a 6 row calendar grid format.
MoreAsserts	This class was deprecated in API level 24. Use Hamcrest matchers instead.
MotionEvent	Object used to report movement (mouse, pen, finger, trackball) events.
MotionEvent.PointerCoords	Transfer object for pointer coordinates.
MotionEvent.PointerProperties	Transfer object for pointer properties.
MotionEventCompat	Helper for accessing features in `MotionEvent` introduced after API level 4 in a backwards compatible fashion.
MovementMethod	Provides cursor positioning, scrolling and text selection functionality in a `TextView`.
Movie
MtpConstants	A class containing constants in the MTP and PTP specifications.
MtpDevice	This class represents an MTP or PTP device connected on the USB host bus.
MtpDeviceInfo	This class encapsulates information about an MTP device.
MtpEvent	This class encapsulates information about a MTP event.
MtpObjectInfo	This class encapsulates information about an object on an MTP device.
MtpObjectInfo.Builder	Builds a new object info instance.
MtpStorageInfo	This class encapsulates information about a storage unit on an MTP device.
MultiActionsProvider	An interface implemented by the user if they wish to provide actions for a media item row to be displayed by an `AbstractMediaItemPresenter`.
MultiActionsProvider.MultiAction	MultiAction represents an action that can have multiple states.
MultiAutoCompleteTextView	An editable text view, extending `AutoCompleteTextView`, that can show completion suggestions for the substring of the text where the user is typing instead of necessarily for the entire thing.
MultiAutoCompleteTextView.CommaTokenizer	This simple Tokenizer can be used for lists where the items are separated by a comma and one or more spaces.
MultiAutoCompleteTextView.Tokenizer
MulticastSocket	The multicast datagram socket class is useful for sending and receiving IP multicast packets.
MultiDex	Monkey patches `the application context class loader` in order to load classes from more than one dex file.
MultiDexApplication	Minimal MultiDex capable application.
MultiDexTestRunner	`InstrumentationTestRunner` for testing application needing multidex support.
MultiSelectListPreference	A `Preference` that displays a list of entries as a dialog.
MultiSelectListPreference	A `Preference` that displays a list of entries as a dialog.
MultiSelectListPreferenceDialogFragment
MultiTapKeyListener	This is the standard key listener for alphabetic input on 12-key keyboards.
MutableBoolean
MutableByte
MutableChar
MutableContextWrapper	Special version of `ContextWrapper` that allows the base context to be modified after it is initially set.
MutableDouble
MutableFloat
MutableInt
MutableLong
MutableShort

N

NamedNodeMap	Objects implementing the `NamedNodeMap` interface are used to represent collections of nodes that can be accessed by name.
NameList	The `NameList` interface provides the abstraction of an ordered collection of parallel pairs of name and namespace values (which could be null values), without defining or constraining how this collection is implemented.
NamespaceContext	Interface for read only XML Namespace context processing.
NamespaceSupport	Encapsulate Namespace logic for use by applications using SAX, or internally by SAX drivers.
NativeActivity	Convenience for implementing an activity that will be implemented purely in native code.
NavigableMap<K, V>	A `SortedMap` extended with navigation methods returning the closest matches for given search targets.
NavigableSet<E>	A `SortedSet` extended with navigation methods reporting closest matches for given search targets.
NavigationView	Represents a standard navigation menu for application.
NavigationView.OnNavigationItemSelectedListener	Listener for handling events on navigation items.
NavigationView.SavedState	User interface state that is stored by NavigationView for implementing onSaveInstanceState().
NavUtils	NavUtils provides helper functionality for applications implementing recommended Android UI navigation patterns.
NClob	The mapping in the Java^TM programming language for the SQL `NCLOB` type.
Ndef	Provides access to NDEF content and operations on a `Tag`.
NdefFormatable	Provide access to NDEF format operations on a `Tag`.
NdefMessage	Represents an immutable NDEF Message.
NdefRecord	Represents an immutable NDEF Record.
NegativeArraySizeException	Thrown if an application tries to create an array with negative size.
NeighboringCellInfo	Represents the neighboring cell information, including Received Signal Strength and Cell ID location.
NestedScrollingChild	This interface should be implemented by `View` subclasses that wish to support dispatching nested scrolling operations to a cooperating parent `ViewGroup`.
NestedScrollingChildHelper	Helper class for implementing nested scrolling child views compatible with Android platform versions earlier than Android 5.0 Lollipop (API 21).
NestedScrollingParent	This interface should be implemented by `ViewGroup` subclasses that wish to support scrolling operations delegated by a nested child view.
NestedScrollingParentHelper	Helper class for implementing nested scrolling parent views compatible with Android platform versions earlier than Android 5.0 Lollipop (API 21).
NestedScrollView	NestedScrollView is just like `ScrollView`, but it supports acting as both a nested scrolling parent and child on both new and old versions of Android.
NestedScrollView.OnScrollChangeListener	Interface definition for a callback to be invoked when the scroll X or Y positions of a view change.
NetPermission	Legacy security code; do not use.
Network	Identifies a `Network`.
NetworkCapabilities	This class represents the capabilities of a network.
NetworkChannel	A channel to a network socket.
NetworkErrorException
NetworkInfo	Describes the status of a network interface.
NetworkInfo.DetailedState	The fine-grained state of a network connection.
NetworkInfo.State	Coarse-grained network state.
NetworkInterface	This class represents a Network Interface made up of a name, and a list of IP addresses assigned to this interface.
NetworkOnMainThreadException	The exception that is thrown when an application attempts to perform a networking operation on its main thread.
NetworkRequest	Defines a request for a network, made through `NetworkRequest.Builder` and used to request a network via `requestNetwork(NetworkRequest, PendingIntent)` or listen for changes via `registerNetworkCallback(NetworkRequest, PendingIntent)`.
NetworkRequest.Builder	Builder used to create `NetworkRequest` objects.
NetworkSecurityPolicy	Network security policy.
NetworkStats	Class providing enumeration over buckets of network usage statistics.
NetworkStats.Bucket	Buckets are the smallest elements of a query result.
NetworkStatsManager	Provides access to network usage history and statistics.
NetworkStatsManager.UsageCallback	Base class for usage callbacks.
NfcA	Provides access to NFC-A (ISO 14443-3A) properties and I/O operations on a `Tag`.
NfcAdapter	Represents the local NFC adapter.
NfcAdapter.CreateBeamUrisCallback
NfcAdapter.CreateNdefMessageCallback	A callback to be invoked when another NFC device capable of NDEF push (Android Beam) is within range.
NfcAdapter.OnNdefPushCompleteCallback	A callback to be invoked when the system successfully delivers your `NdefMessage` to another device.
NfcAdapter.OnTagRemovedListener	A callback that is invoked when a tag is removed from the field.
NfcAdapter.ReaderCallback	A callback to be invoked when the system finds a tag while the foreground activity is operating in reader mode.
NfcB	Provides access to NFC-B (ISO 14443-3B) properties and I/O operations on a `Tag`.
NfcBarcode	Provides access to tags containing just a barcode.
NfcEvent	Wraps information associated with any NFC event.
NfcF	Provides access to NFC-F (JIS 6319-4) properties and I/O operations on a `Tag`.
NfcFCardEmulation	This class can be used to query the state of NFC-F card emulation services.
NfcManager	High level manager used to obtain an instance of an `NfcAdapter`.
NfcV	Provides access to NFC-V (ISO 15693) properties and I/O operations on a `Tag`.
NinePatch	The NinePatch class permits drawing a bitmap in nine or more sections.
NinePatchDrawable	A resizeable bitmap, with stretchable areas that you define.
NoClassDefFoundError	Thrown if the Java Virtual Machine or a `ClassLoader` instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the `new` expression) and no definition of the class could be found.
NoConnectionPendingException	Unchecked exception thrown when the `finishConnect` method of a `SocketChannel` is invoked without first successfully invoking its `connect` method.
NoCopySpan	This interface should be added to a span object that should not be copied into a new Spanned when performing a slice or copy operation on the original Spanned it was placed in.
NoCopySpan.Concrete	Convenience equivalent for when you would just want a new Object() for a span but want it to be no-copy.
Node	The `Node` interface is the primary datatype for the entire Document Object Model.
NodeChangeEvent	An event emitted by a `Preferences` node to indicate that a child of that node has been added or removed.
NodeChangeListener	A listener for receiving preference node change events.
NodeList	The `NodeList` interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented.
NoiseSuppressor	Noise Suppressor (NS).
NonNull	Denotes that a parameter, field or method return value can never be null.
NonReadableChannelException	Unchecked exception thrown when an attempt is made to read from a channel that was not originally opened for reading.
NonWritableChannelException	Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing.
Normalizer	Old Unicode normalization API.
Normalizer	This class provides the method `normalize` which transforms Unicode text into an equivalent composed or decomposed form, allowing for easier sorting and searching of text.
Normalizer.Form	This enum provides constants of the four Unicode normalization forms that are described in Unicode Standard Annex #15 — Unicode Normalization Forms and two methods to access them.
Normalizer.QuickCheckResult	Result values for quickCheck().
Normalizer2	Unicode normalization functionality for standard Unicode normalization or for using custom mapping tables.
Normalizer2.Mode	Constants for normalization modes.
NoRouteToHostException	Signals that an error occurred while attempting to connect a socket to a remote address and port.
NoSuchAlgorithmException	This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
NoSuchElementException	Thrown by the `nextElement` method of an `Enumeration` to indicate that there are no more elements in the enumeration.
NoSuchFieldError	Thrown if an application tries to access or modify a specified field of an object, and that object no longer has that field.
NoSuchFieldException	Signals that the class doesn't have a field of a specified name.
NoSuchMethodError	Thrown if an application tries to call a specified method of a class (either static or instance), and that class no longer has a definition of that method.
NoSuchMethodException	Thrown when a particular method cannot be found.
NoSuchPaddingException	This exception is thrown when a particular padding mechanism is requested but is not available in the environment.
NoSuchPropertyException	Thrown when code requests a `Property` on a class that does not expose the appropriate method or field.
NoSuchProviderException	This exception is thrown when a particular security provider is requested but is not available in the environment.
NotActiveException	Thrown when serialization or deserialization is not active.
Notation	This interface represents a notation declared in the DTD.
Notification	A class that represents how a persistent notification is to be presented to the user using the `NotificationManager`.
Notification.Action	Structure to encapsulate a named action that can be shown as part of this notification.
Notification.Action.Builder	Builder class for `Notification.Action` objects.
Notification.Action.Extender	Extender interface for use with `extend(Notification.Action.Extender)`.
Notification.Action.WearableExtender	Wearable extender for notification actions.
Notification.BigPictureStyle	Helper class for generating large-format notifications that include a large image attachment.
Notification.BigTextStyle	Helper class for generating large-format notifications that include a lot of text.
Notification.Builder	Builder class for `Notification` objects.
Notification.CarExtender	Helper class to add Android Auto extensions to notifications.
Notification.CarExtender.Builder	Builder class for `Notification.CarExtender.UnreadConversation` objects.
Notification.CarExtender.UnreadConversation	A class which holds the unread messages from a conversation.
Notification.DecoratedCustomViewStyle	Notification style for custom views that are decorated by the system Instead of providing a notification that is completely custom, a developer can set this style and still obtain system decorations like the notification header with the expand affordance and actions.
Notification.DecoratedMediaCustomViewStyle	Notification style for media custom views that are decorated by the system Instead of providing a media notification that is completely custom, a developer can set this style and still obtain system decorations like the notification header with the expand affordance and actions.
Notification.Extender	Extender interface for use with `extend(Notification.Action.Extender)`.
Notification.InboxStyle	Helper class for generating large-format notifications that include a list of (up to 5) strings.
Notification.MediaStyle	Notification style for media playback notifications.
Notification.MessagingStyle	Helper class for generating large-format notifications that include multiple back-and-forth messages of varying types between any number of people.
Notification.MessagingStyle.Message
Notification.Style	An object that can apply a rich notification style to a `Notification.Builder` object.
Notification.WearableExtender	Helper class to add wearable extensions to notifications.
NotificationCompat	Helper for accessing features in `Notification` introduced after API level 4 in a backwards compatible fashion.
NotificationCompat	An extension of `NotificationCompat` which supports `NotificationCompat.MediaStyle`.
NotificationCompat.Action	Structure to encapsulate a named action that can be shown as part of this notification.
NotificationCompat.Action.Builder	Builder class for `NotificationCompat.Action` objects.
NotificationCompat.Action.Extender	Extender interface for use with `extend(NotificationCompat.Extender)`.
NotificationCompat.Action.WearableExtender	Wearable extender for notification actions.
NotificationCompat.BigPictureStyle	Helper class for generating large-format notifications that include a large image attachment.
NotificationCompat.BigTextStyle	Helper class for generating large-format notifications that include a lot of text.
NotificationCompat.Builder	Builder class for `NotificationCompat` objects.
NotificationCompat.Builder	See `NotificationCompat`.
NotificationCompat.CarExtender	Helper class to add Android Auto extensions to notifications.
NotificationCompat.CarExtender.UnreadConversation	A class which holds the unread messages from a conversation.
NotificationCompat.CarExtender.UnreadConversation.Builder	Builder class for `NotificationCompat.CarExtender.UnreadConversation` objects.
NotificationCompat.Extender	Extender interface for use with `extend(NotificationCompat.Extender)`.
NotificationCompat.InboxStyle	Helper class for generating large-format notifications that include a list of (up to 5) strings.
NotificationCompat.MediaStyle	Notification style for media playback notifications.
NotificationCompat.MessagingStyle	Helper class for generating large-format notifications that include multiple back-and-forth messages of varying types between any number of people.
NotificationCompat.MessagingStyle.Message
NotificationCompat.Style	An object that can apply a rich notification style to a `Notification.Action.Builder` object.
NotificationCompat.WearableExtender	Helper class to add wearable extensions to notifications.
NotificationCompatExtras	Well-known extras used by `NotificationCompat` for backwards compatibility.
NotificationCompatSideChannelService	Abstract service to receive side channel notifications sent from `NotificationManagerCompat`.
NotificationListenerService	A service that receives calls from the system when new notifications are posted or removed, or their ranking changed.
NotificationListenerService.Ranking	Stores ranking related information on a currently active notification.
NotificationListenerService.RankingMap	Provides access to ranking information on currently active notifications.
NotificationManager	Class to notify the user of events that happen. This is how you tell the user that something has happened in the background.
NotificationManager.Policy	Notification policy configuration.
NotificationManagerCompat	Compatibility library for NotificationManager with fallbacks for older platforms.
NotOwnerException	This is an exception that is thrown whenever the modification of an object (such as an Access Control List) is only allowed to be done by an owner of the object, but the Principal attempting the modification is not an owner.
NotProvisionedException	Exception thrown when an operation on a MediaDrm object is attempted and the device does not have a certificate.
NotSerializableException	Thrown when an instance is required to have a Serializable interface.
NotYetBoundException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a server socket channel that is not yet bound.
NotYetConnectedException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a socket channel that is not yet connected.
NsdManager	The Network Service Discovery Manager class provides the API to discover services on a network.
NsdManager.DiscoveryListener	Interface for callback invocation for service discovery
NsdManager.RegistrationListener	Interface for callback invocation for service registration
NsdManager.ResolveListener	Interface for callback invocation for service resolution
NsdServiceInfo	A class representing service information for network service discovery
Nullable	Denotes that a parameter, field or method return value can be null.
NullCipher	The NullCipher class is a class that provides an "identity cipher" -- one that does not tranform the plaintext.
NullPointerException	Thrown when an application attempts to use `null` in a case where an object is required.
Number	The abstract class `Number` is the superclass of classes `BigDecimal`, `BigInteger`, `Byte`, `Double`, `Float`, `Integer`, `Long`, and `Short`.
NumberFormat	[icu enhancement] ICU's replacement for `NumberFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
NumberFormat	`NumberFormat` is the abstract base class for all number formats.
NumberFormat.Field	The instances of this inner class are used as attribute keys and values in AttributedCharacterIterator that NumberFormat.formatToCharacterIterator() method returns.
NumberFormat.Field	Defines constants that are used as attribute keys in the `AttributedCharacterIterator` returned from `NumberFormat.formatToCharacterIterator` and as field identifiers in `FieldPosition`.
NumberFormatException	Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.
NumberingSystem	`NumberingSystem` is the base class for all number systems.
NumberKeyListener	For numeric text entry As for all implementations of `KeyListener`, this class is only concerned with hardware keyboards.
NumberPicker	A widget that enables the user to select a number from a predefined range.
NumberPicker.Formatter	Interface used to format current value into a string for presentation.
NumberPicker.OnScrollListener	Interface to listen for the picker scroll state.
NumberPicker.OnValueChangeListener	Interface to listen for changes of the current value.
NumericShaper	The `NumericShaper` class is used to convert Latin-1 (European) digits to other Unicode decimal digits.
NumericShaper.Range	A `NumericShaper.Range` represents a Unicode range of a script having its own decimal digits.

O

OAEPParameterSpec	This class specifies the set of parameters used with OAEP Padding, as defined in the PKCS #1 standard.
ObbInfo	Basic information about a Opaque Binary Blob (OBB) that reflects the info from the footer on the OBB file.
ObbScanner	Class to scan Opaque Binary Blob (OBB) files.
ObjDoubleConsumer<T>	Represents an operation that accepts an object-valued and a `double`-valued argument, and returns no result.
Object	Class `Object` is the root of the class hierarchy.
ObjectAdapter	Base class adapter to be used in leanback activities.
ObjectAdapter.DataObserver	A DataObserver can be notified when an ObjectAdapter's underlying data changes.
ObjectAnimator	This subclass of `ValueAnimator` provides support for animating properties on target objects.
ObjectInput	ObjectInput extends the DataInput interface to include the reading of objects.
ObjectInputStream	An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
ObjectInputStream.GetField	Provide access to the persistent fields read from the input stream.
ObjectInputValidation	Callback interface to allow validation of objects within a graph.
ObjectOutput	ObjectOutput extends the DataOutput interface to include writing of objects.
ObjectOutputStream	An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
ObjectOutputStream.PutField	Provide programmatic access to the persistent fields to be written to ObjectOutput.
Objects	This class consists of `static` utility methods for operating on objects.
ObjectStreamClass	Serialization's descriptor for classes.
ObjectStreamConstants	Constants written into the Object Serialization Stream.
ObjectStreamException	Superclass of all exceptions specific to Object Stream classes.
ObjectStreamField	A description of a Serializable field from a Serializable class.
ObjIntConsumer<T>	Represents an operation that accepts an object-valued and a `int`-valued argument, and returns no result.
ObjLongConsumer<T>	Represents an operation that accepts an object-valued and a `long`-valued argument, and returns no result.
Observable<T>	Provides methods for registering or unregistering arbitrary observers in an `ArrayList`.
Observable	Observable classes provide a way in which data bound UI can be notified of changes.
Observable	This class represents an observable object, or "data" in the model-view paradigm.
Observable.OnPropertyChangedCallback	The callback that is called by Observable when an observable property has changed.
ObservableArrayList<T>	An `ObservableList` implementation using ArrayList as an implementation.
ObservableArrayMap<K, V>
ObservableBoolean	An observable class that holds a primitive boolean.
ObservableByte	An observable class that holds a primitive byte.
ObservableChar	An observable class that holds a primitive char.
ObservableDouble	An observable class that holds a primitive double.
ObservableField<T>	An object wrapper to make it observable.
ObservableFloat	An observable class that holds a primitive float.
ObservableInt	An observable class that holds a primitive int.
ObservableList<T>	A `List` that notifies when changes are made.
ObservableList.OnListChangedCallback<T extends ObservableList>	The callback that is called by ObservableList when the list has changed.
ObservableLong	An observable class that holds a primitive long.
ObservableMap<K, V>	A `Map` that notifies when items change.
ObservableMap.OnMapChangedCallback<T extends ObservableMap<K, V>, K, V>	A callback receiving notifications when an ObservableMap changes.
ObservableParcelable<T extends Parcelable>	An observable class that holds a parcelable object.
ObservableShort	An observable class that holds a primitive short.
Observer	A class can implement the `Observer` interface when it wants to be informed of changes in observable objects.
OffHostApduService	OffHostApduService is a convenience `Service` class that can be extended to describe one or more NFC applications that are residing off-host, for example on an embedded secure element or a UICC.
OnAccountsUpdateListener	An interface that contains the callback used by the AccountManager
OnActionClickedListener	Interface for receiving notification when an `Action` is clicked.
OnApplyWindowInsetsListener	Listener for applying window insets on a view in a custom way.
OnboardingFragment	An OnboardingFragment provides a common and simple way to build onboarding screen for applications.
OnboardingSupportFragment	An OnboardingSupportFragment provides a common and simple way to build onboarding screen for applications.
OnChildLaidOutListener	Interface for receiving notification when a child of this ViewGroup has been laid out.
OnChildSelectedListener	This interface is deprecated. Use `OnChildViewHolderSelectedListener`
OnChildViewHolderSelectedListener	Interface for receiving notification when a child of this ViewGroup has been selected.
OnItemViewClickedListener	Interface for receiving notification when a item view holder is clicked.
OnItemViewSelectedListener	Interface for receiving notification when a row or item becomes selected.
OnNmeaMessageListener	Used for receiving NMEA sentences from the GNSS.
OnObbStateChangeListener	Used for receiving notifications from `StorageManager` about OBB file states.
OnRebindCallback<T extends ViewDataBinding>	Listener set on `addOnRebindCallback(OnRebindCallback)` that is called when bound values must be reevaluated in `executePendingBindings()`.
OpcodeInfo	Information about Dalvik opcodes.
Opcodes	A list of all normal (not implementation-specific) Dalvik opcodes.
OpenableColumns	These are standard columns for openable URIs.
OperationApplicationException	Thrown when an application of a `ContentProviderOperation` fails due the specified constraints.
OperationCanceledException
OperationCanceledException	An exception type that is thrown when an operation in progress is canceled.
OperationCanceledException	An exception type that is thrown when an operation in progress is canceled.
Optional<T>	A container object which may or may not contain a non-null value.
OptionalDataException	Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.
OptionalDouble	A container object which may or may not contain a `double` value.
OptionalInt	A container object which may or may not contain a `int` value.
OptionalLong	A container object which may or may not contain a `long` value.
OrientationEventListener	Helper class for receiving notifications from the SensorManager when the orientation of the device has changed.
OrientationHelper	Helper class for LayoutManagers to abstract measurements depending on the View's orientation.
OrientationListener	This class was deprecated in API level 3. use `OrientationEventListener` instead. This class internally uses the OrientationEventListener.
OrientedBoundingBox	An oriented bounding box
Os	Access to low-level system functionality.
OsConstants	Constants and helper functions for use with `Os`.
Outline	Defines a simple shape, used for bounding graphical regions.
OutOfMemoryError	Thrown when the Java Virtual Machine cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector.
Output<T>	Simple struct-like class for output parameters.
OutputConfiguration	A class for describing camera output, which contains a `Surface` and its specific configuration for creating capture session.
OutputKeys	Provides string constants that can be used to set output properties for a Transformer, or to retrieve output properties from a Transformer or Templates object.
OutputStream	This abstract class is the superclass of all classes representing an output stream of bytes.
OutputStreamWriter	An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified `charset`.
OvalShape	Defines an oval shape.
OverlappingFileLockException	Unchecked exception thrown when an attempt is made to acquire a lock on a region of a file that overlaps a region already locked by the same Java virtual machine, or when another thread is already waiting to lock an overlapping region of the same file.
Override	Indicates that a method declaration is intended to override a method declaration in a supertype.
OverScroller	This class encapsulates scrolling with the ability to overshoot the bounds of a scrolling operation.
OvershootInterpolator	An interpolator where the change flings forward and overshoots the last value then comes back.
Owner	Interface for managing owners of Access Control Lists (ACLs) or ACL configurations.

P

Pack200	Transforms a JAR file to or from a packed stream in Pack200 format.
Pack200.Packer	The packer engine applies various transformations to the input JAR file, making the pack stream highly compressible by a compressor such as gzip or zip.
Pack200.Unpacker	The unpacker engine converts the packed stream to a JAR file.
Package	`Package` objects contain version information about the implementation and specification of a Java package.
PackageHealthStats	Keys for `HealthStats` returned from `HealthStats.getStats(int)` with the `UidHealthStats.STATS_PACKAGES` key.
PackageInfo	Overall information about the contents of a package.
PackageInstaller	Offers the ability to install, upgrade, and remove applications on the device.
PackageInstaller.Session	An installation that is being actively staged.
PackageInstaller.SessionCallback	Events for observing session lifecycle.
PackageInstaller.SessionInfo	Details for an active install session.
PackageInstaller.SessionParams	Parameters for creating a new `PackageInstaller.Session`.
PackageItemInfo	Base class containing information common to all package items held by the package manager.
PackageItemInfo.DisplayNameComparator
PackageManager	Class for retrieving various kinds of information related to the application packages that are currently installed on the device.
PackageManager.NameNotFoundException	This exception is thrown when a given package, application, or component name cannot be found.
PackageStats	implementation of PackageStats associated with a application package.
PagerAdapter	Base class providing the adapter to populate pages inside of a `ViewPager`.
PageRange	Represents a range of pages.
PageRow	Used to represent content spanning full page.
PagerTabStrip	PagerTabStrip is an interactive indicator of the current, next, and previous pages of a `ViewPager`.
PagerTitleStrip	PagerTitleStrip is a non-interactive indicator of the current, next, and previous pages of a `ViewPager`.
Paint	The Paint class holds the style and color information about how to draw geometries, text and bitmaps.
Paint.Align	Align specifies how drawText aligns its text relative to the [x,y] coordinates.
Paint.Cap	The Cap specifies the treatment for the beginning and ending of stroked lines and paths.
Paint.FontMetrics	Class that describes the various metrics for a font at a given text size.
Paint.FontMetricsInt	Convenience method for callers that want to have FontMetrics values as integers.
Paint.Join	The Join specifies the treatment where lines and curve segments join on a stroked path.
Paint.Style	The Style specifies if the primitive being drawn is filled, stroked, or both (in the same color).
PaintDrawable	Drawable that draws its bounds in the given paint, with optional rounded corners.
PaintFlagsDrawFilter
Pair<F, S>	Container to ease passing around a tuple of two objects.
Pair<F, S>	Container to ease passing around a tuple of two objects.
Palette	A helper class to extract prominent colors from an image.
Palette.Builder	Builder class for generating `Palette` instances.
Palette.Filter	A Filter provides a mechanism for exercising fine-grained control over which colors are valid within a resulting `Palette`.
Palette.PaletteAsyncListener	Listener to be used with `generateAsync(Bitmap, PaletteAsyncListener)` or `generateAsync(Bitmap, int, PaletteAsyncListener)`
Palette.Swatch	Represents a color swatch generated from an image's palette.
ParagraphStyle	The classes that affect paragraph-level text formatting implement this interface.
ParallelExecutorCompat	Helper for accessing a shared parallel Executor instance introduced after API level 4 in a backwards compatible fashion.
ParameterizedType	ParameterizedType represents a parameterized type such as Collection<String>.
ParameterMetaData	An object that can be used to get information about the types and properties for each parameter marker in a `PreparedStatement` object.
Parcel	Container for a message (data and object references) that can be sent through an IBinder.
Parcelable	Interface for classes whose instances can be written to and restored from a `Parcel`.
Parcelable.ClassLoaderCreator<T>	Specialization of `Parcelable.Creator` that allows you to receive the ClassLoader the object is being created in.
Parcelable.Creator<T>	Interface that must be implemented and provided as a public CREATOR field that generates instances of your Parcelable class from a Parcel.
ParcelableCompat	Helper for accessing features in `Parcelable` introduced after API level 4 in a backwards compatible fashion.
ParcelableCompatCreatorCallbacks<T>	Callbacks a `Parcelable` creator should implement.
ParcelableSpan	A special kind of Parcelable for objects that will serve as text spans.
ParcelableVolumeInfo	Convenience class for passing information about the audio configuration of a `MediaSessionCompat`.
ParcelFileDescriptor	The FileDescriptor returned by `readFileDescriptor()`, allowing you to close it when done with it.
ParcelFileDescriptor.AutoCloseInputStream	An InputStream you can create on a ParcelFileDescriptor, which will take care of calling `ParcelFileDescriptor.close()` for you when the stream is closed.
ParcelFileDescriptor.AutoCloseOutputStream	An OutputStream you can create on a ParcelFileDescriptor, which will take care of calling `ParcelFileDescriptor.close()` for you when the stream is closed.
ParcelFileDescriptor.FileDescriptorDetachedException	Exception that indicates that the file descriptor was detached.
ParcelFileDescriptor.OnCloseListener	Callback indicating that a ParcelFileDescriptor has been closed.
ParcelFormatException	The contents of a Parcel (usually during unmarshalling) does not contain the expected data.
ParcelUuid	This class is a Parcelable wrapper around `UUID` which is an immutable representation of a 128-bit universally unique identifier.
ParseException	Thrown when parsing a URL fails.
ParseException	Signals that an error has been reached unexpectedly while parsing.
ParsePosition	`ParsePosition` is a simple class used by `Format` and its subclasses to keep track of the current position during parsing.
Parser	This interface was deprecated in API level 1. This interface has been replaced by the SAX2 `XMLReader` interface, which includes Namespace support.
ParserAdapter	Adapt a SAX1 Parser as a SAX2 XMLReader.
ParserConfigurationException	Indicates a serious configuration error.
ParserFactory	This class was deprecated in API level 1. This class works with the deprecated `Parser` interface.
PasswordAuthentication	The class PasswordAuthentication is a data holder that is used by Authenticator.
PasswordCallback	Underlying security services instantiate and pass a `PasswordCallback` to the `handle` method of a `CallbackHandler` to retrieve password information.
PasswordTransformationMethod
Path	The Path class encapsulates compound (multiple contour) geometric paths consisting of straight line segments, quadratic curves, and cubic curves.
Path.Direction	Specifies how closed shapes (e.g.
Path.FillType	Enum for the ways a path may be filled.
Path.Op	The logical operations that can be performed when combining two paths.
PathClassLoader	Provides a simple `ClassLoader` implementation that operates on a list of files and directories in the local file system, but does not attempt to load classes from the network.
PathDashPathEffect
PathDashPathEffect.Style
PathEffect	PathEffect is the base class for objects in the Paint that affect the geometry of a drawing primitive before it is transformed by the canvas' matrix and drawn.
PathInterpolator	An interpolator that can traverse a Path that extends from `Point` `(0, 0)` to `(1, 1)`.
PathInterpolatorCompat	Helper for creating path-based `Interpolator` instances.
PathMeasure
PathMotion	This base class can be extended to provide motion along a Path to Transitions.
PathPermission	Description of permissions needed to access a particular path in a `ProviderInfo`.
PathShape	Creates geometric paths, utilizing the `Path` class.
Pattern	A compiled representation of a regular expression.
PatternMatcher	A simple pattern matcher, which is safe to use on untrusted data: it does not provide full reg-exp support, only simple globbing that can not be used maliciously.
PatternPathMotion	A PathMotion that takes a Path pattern and applies it to the separation between two points.
Patterns	Commonly used regular expression patterns.
PatternSyntaxException	Unchecked exception thrown to indicate a syntax error in a regular-expression pattern.
PBEKey	The interface to a PBE key.
PBEKeySpec	A user-chosen password that can be used with password-based encryption (PBE).
PBEParameterSpec	This class specifies the set of parameters used with password-based encryption (PBE), as defined in the PKCS #5 standard.
PdfDocument	This class enables generating a PDF document from native Android content.
PdfDocument.Page	This class represents a PDF document page.
PdfDocument.PageInfo	This class represents meta-data that describes a PDF `PdfDocument.Page`.
PdfDocument.PageInfo.Builder	Builder for creating a `PdfDocument.PageInfo`.
PdfRenderer	This class enables rendering a PDF document.
PdfRenderer.Page	This class represents a PDF document page for rendering.
PendingIntent	A description of an Intent and target action to perform with it.
PendingIntent.CanceledException	Exception thrown when trying to send through a PendingIntent that has been canceled or is otherwise no longer able to execute the request.
PendingIntent.OnFinished	Callback interface for discovering when a send operation has completed.
PercentFrameLayout	Subclass of `FrameLayout` that supports percentage based dimensions and margins.
PercentFrameLayout.LayoutParams
PercentLayoutHelper	Helper for layouts that want to support percentage based dimensions.
PercentLayoutHelper.PercentLayoutInfo	Container for information about percentage dimensions and margins.
PercentLayoutHelper.PercentLayoutParams	If a layout wants to support percentage based dimensions and use this helper class, its `LayoutParams` subclass must implement this interface.
PercentRelativeLayout	Subclass of `RelativeLayout` that supports percentage based dimensions and margins.
PercentRelativeLayout.LayoutParams
PerformanceTestCase	More complex interface performance for test cases.
PerformanceTestCase.Intermediates	Callbacks for `PerformanceTestCase`.
PeriodicSync	Value type that contains information about a periodic sync.
Permission	Legacy security code; do not use.
Permission	Legacy security code; do not use.
PermissionChecker	This class provides permission check APIs that verify both the permission and the associated app op for this permission if such is defined.
PermissionChecker.PermissionResult
PermissionCollection	Legacy security code; do not use.
PermissionGroupInfo	Information you can retrieve about a particular security permission group known to the system.
PermissionInfo	Information you can retrieve about a particular security permission known to the system.
PermissionRequest	This class defines a permission request and is used when web content requests access to protected resources.
Permissions	Legacy security code; do not use.
PersistableBundle	A mapping from String keys to values of various types.
PhantomReference<T>	Phantom reference objects, which are enqueued after the collector determines that their referents may otherwise be reclaimed.
Phaser	A reusable synchronization barrier, similar in functionality to `CyclicBarrier` and `CountDownLatch` but supporting more flexible usage.
PhoneAccount	Represents a distinct method to place or receive a phone call.
PhoneAccount.Builder	Helper class for creating a `PhoneAccount`.
PhoneAccountHandle	The unique identifier for a `PhoneAccount`.
PhoneNumberFormattingTextWatcher	Watches a `TextView` and if a phone number is entered will format it.
PhoneNumberUtils	Various utilities for dealing with phone number strings.
PhoneStateListener	A listener class for monitoring changes in specific telephony states on the device, including service state, signal strength, message waiting indicator (voicemail), and others.
Picker	Picker is a widget showing multiple customized `PickerColumn`s.
Picker.PickerValueListener
PickerColumn	Picker column class used by `Picker`, defines a contiguous value ranges and associated labels.
Picture	A Picture records drawing calls (via the canvas returned by beginRecording) and can then play them back into Canvas (via `draw(Canvas)` or `drawPicture(Picture)`).For most content (e.g.
PictureDrawable	Drawable subclass that wraps a Picture, allowing the picture to be used wherever a Drawable is supported.
PidHealthStats	Keys for `HealthStats` returned from `HealthStats.getStats(int)` with the `UidHealthStats.STATS_PIDS` key.
Pipe	A pair of channels that implements a unidirectional pipe.
Pipe.SinkChannel	A channel representing the writable end of a `Pipe`.
Pipe.SourceChannel	A channel representing the readable end of a `Pipe`.
PipedInputStream	A piped input stream should be connected to a piped output stream; the piped input stream then provides whatever data bytes are written to the piped output stream.
PipedOutputStream	A piped output stream can be connected to a piped input stream to create a communications pipe.
PipedReader	Piped character-input streams.
PipedWriter	Piped character-output streams.
PixelCopy	Provides a mechanisms to issue pixel copy requests to allow for copy operations from `Surface` to `Bitmap`
PixelCopy.OnPixelCopyFinishedListener	Listener for observing the completion of a PixelCopy request.
PixelFormat
PKCS8EncodedKeySpec	This class represents the ASN.1 encoding of a private key, encoded according to the ASN.1 type `PrivateKeyInfo`.
PKIXBuilderParameters	Parameters used as input for the PKIX `CertPathBuilder` algorithm.
PKIXCertPathBuilderResult	This class represents the successful result of the PKIX certification path builder algorithm.
PKIXCertPathChecker	An abstract class that performs one or more checks on an `X509Certificate`.
PKIXCertPathValidatorResult	This class represents the successful result of the PKIX certification path validation algorithm.
PKIXParameters	Parameters used as input for the PKIX `CertPathValidator` algorithm.
PKIXReason	The `PKIXReason` enumerates the potential PKIX-specific reasons that an X.509 certification path may be invalid according to the PKIX (RFC 3280) standard.
PKIXRevocationChecker	A `PKIXCertPathChecker` for checking the revocation status of certificates with the PKIX algorithm.
PKIXRevocationChecker.Option	Various revocation options that can be specified for the revocation checking mechanism.
PlaybackControlGlue	A helper class for managing a `PlaybackControlsRow` and `PlaybackOverlayFragment` that implements a recommended approach to handling standard playback control actions such as play/pause, fast forward/rewind at progressive speed levels, and skip to next/previous.
PlaybackControlsRow	A `Row` of playback controls to be displayed by a `PlaybackControlsRowPresenter`.
PlaybackControlsRow.ClosedCaptioningAction	An action for displaying a CC (Closed Captioning) icon.
PlaybackControlsRow.FastForwardAction	An action displaying an icon for fast forward.
PlaybackControlsRow.HighQualityAction	An action for displaying a HQ (High Quality) icon.
PlaybackControlsRow.MoreActions	An action displaying an icon for "more actions".
PlaybackControlsRow.MultiAction	Base class for an action comprised of a series of icons.
PlaybackControlsRow.PictureInPictureAction	An action displaying an icon for picture-in-picture.
PlaybackControlsRow.PlayPauseAction	An action displaying icons for play and pause.
PlaybackControlsRow.RepeatAction	An action for displaying three repeat states: none, one, or all.
PlaybackControlsRow.RewindAction	An action displaying an icon for rewind.
PlaybackControlsRow.ShuffleAction	An action for displaying a shuffle icon.
PlaybackControlsRow.SkipNextAction	An action displaying an icon for skip next.
PlaybackControlsRow.SkipPreviousAction	An action displaying an icon for skip previous.
PlaybackControlsRow.ThumbsAction	A base class for displaying a thumbs action.
PlaybackControlsRow.ThumbsDownAction	An action displaying an icon for thumbs down.
PlaybackControlsRow.ThumbsUpAction	An action displaying an icon for thumbs up.
PlaybackControlsRowPresenter	A PlaybackControlsRowPresenter renders a `PlaybackControlsRow` to display a series of playback control buttons.
PlaybackControlsRowPresenter.ViewHolder	A ViewHolder for the PlaybackControlsRow.
PlaybackControlSupportGlue	A helper class for managing a `PlaybackControlsRow` and `PlaybackOverlaySupportFragment` that implements a recommended approach to handling standard playback control actions such as play/pause, fast forward/rewind at progressive speed levels, and skip to next/previous.
PlaybackOverlayFragment	A fragment for displaying playback controls and related content.
PlaybackOverlayFragment.InputEventHandler	Interface allowing the application to handle input events.
PlaybackOverlayFragment.OnFadeCompleteListener	Listener allowing the application to receive notification of fade in and/or fade out completion events.
PlaybackOverlaySupportFragment	A fragment for displaying playback controls and related content.
PlaybackOverlaySupportFragment.InputEventHandler	Interface allowing the application to handle input events.
PlaybackOverlaySupportFragment.OnFadeCompleteListener	Listener allowing the application to receive notification of fade in and/or fade out completion events.
PlaybackParams	Structure for common playback params.
PlaybackState	Playback state for a `MediaSession`.
PlaybackState.Builder	Builder for `PlaybackState` objects.
PlaybackState.CustomAction	`CustomActions` can be used to extend the capabilities of the standard transport controls by exposing app specific actions to `MediaControllers`.
PlaybackState.CustomAction.Builder	Builder for `PlaybackState.CustomAction` objects.
PlaybackStateCompat	Playback state for a `MediaSessionCompat`.
PlaybackStateCompat.Builder	Builder for `PlaybackStateCompat` objects.
PlaybackStateCompat.CustomAction	`CustomActions` can be used to extend the capabilities of the standard transport controls by exposing app specific actions to `Controllers`.
PlaybackStateCompat.CustomAction.Builder	Builder for `PlaybackStateCompat.CustomAction` objects.
PluginStub	This interface is used to implement plugins in a WebView.
PluralFormat	`PluralFormat` supports the creation of internationalized messages with plural inflection.
PluralRules	Defines rules for mapping non-negative numeric values onto a small set of keywords.
PluralRules.PluralType	Type of plurals and PluralRules.
PluralsRes	Denotes that an integer parameter, field or method return value is expected to be a plurals resource reference.
Point	Point holds two integer coordinates
PointerIcon	Represents an icon that can be used as a mouse pointer.
PointerIconCompat	Helper for accessing features in `PointerIcon` introduced after API level 4 in a backwards compatible fashion.
PointF	PointF holds two float coordinates
PointFEvaluator	This evaluator can be used to perform type interpolation between `PointF` values.
Policy	Legacy security code; do not use.
Policy.Parameters
PolicyNode	An immutable valid policy tree node as defined by the PKIX certification path validation algorithm.
PolicyQualifierInfo	An immutable policy qualifier represented by the ASN.1 PolicyQualifierInfo structure.
PolicySpi	This class defines the Service Provider Interface (SPI) for the `Policy` class.
PooledConnection	An object that provides hooks for connection pool management.
Pools	Helper class for crating pools of objects.
Pools.Pool<T>	Interface for managing a pool of objects.
Pools.SimplePool<T>	Simple (non-synchronized) pool of objects.
Pools.SynchronizedPool<T>	Synchronized) pool of objects.
PopupMenu	Static library support version of the framework's `PopupMenu`.
PopupMenu	A PopupMenu displays a `Menu` in a modal popup window anchored to a `View`.
PopupMenu.OnDismissListener	Callback interface used to notify the application that the menu has closed.
PopupMenu.OnDismissListener	Callback interface used to notify the application that the menu has closed.
PopupMenu.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
PopupMenu.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
PopupMenuCompat	Helper for accessing features in PopupMenu introduced after API level 4 in a backwards compatible fashion.
PopupWindow	This class represents a popup window that can be used to display an arbitrary view.
PopupWindow.OnDismissListener	Listener that is called when this popup window is dismissed.
PopupWindowCompat	Helper for accessing features in PopupWindow introduced after API level 4 in a backwards compatible fashion.
PorterDuff
PorterDuff.Mode
PorterDuffColorFilter	A color filter that can be used to tint the source pixels using a single color and a specific `Porter-Duff composite mode`.
PorterDuffXfermode
PortUnreachableException	Signals that an ICMP Port Unreachable message has been received on a connected datagram.
PowerManager	This class gives you control of the power state of the device.
PowerManager.WakeLock	A wake lock is a mechanism to indicate that your application needs to have the device stay on.
Predicate<T>	Represents a predicate (boolean-valued function) of one argument.
Prediction
Preference	Represents the basic Preference UI building block displayed by a `PreferenceActivity` in the form of a `ListView`.
Preference	Represents the basic Preference UI building block displayed by a `PreferenceFragmentCompat` in the form of a `RecyclerView`.
Preference.BaseSavedState	A base class for managing the instance state of a `Preference`.
Preference.BaseSavedState	A base class for managing the instance state of a `Preference`.
Preference.OnPreferenceChangeListener	Interface definition for a callback to be invoked when the value of this `Preference` has been changed by the user and is about to be set and/or persisted.
Preference.OnPreferenceChangeListener	Interface definition for a callback to be invoked when the value of this `Preference` has been changed by the user and is about to be set and/or persisted.
Preference.OnPreferenceClickListener	Interface definition for a callback to be invoked when a `Preference` is clicked.
Preference.OnPreferenceClickListener	Interface definition for a callback to be invoked when a `Preference` is clicked.
PreferenceActivity	This is the base class for an activity to show a hierarchy of preferences to the user.
PreferenceActivity.Header	Description of a single Header item that the user can select.
PreferenceCategory	Used to group `Preference` objects and provide a disabled title above the group.
PreferenceCategory	Used to group `Preference` objects and provide a disabled title above the group.
PreferenceChangeEvent	An event emitted by a `Preferences` node to indicate that a preference has been added, removed or has had its value changed.
PreferenceChangeListener	A listener for receiving preference change events.
PreferenceDialogFragment	Abstract base class which presents a dialog associated with a `DialogPreference`.
PreferenceDialogFragmentCompat	Abstract base class which presents a dialog associated with a `DialogPreference`.
PreferenceFragment	Shows a hierarchy of `Preference` objects as lists.
PreferenceFragment	Shows a hierarchy of `Preference` objects as lists.
PreferenceFragment.OnPreferenceDisplayDialogCallback
PreferenceFragment.OnPreferenceStartFragmentCallback	Interface that PreferenceFragment's containing activity should implement to be able to process preference items that wish to switch to a new fragment.
PreferenceFragment.OnPreferenceStartFragmentCallback	Interface that PreferenceFragment's containing activity should implement to be able to process preference items that wish to switch to a specified fragment.
PreferenceFragment.OnPreferenceStartScreenCallback	Interface that PreferenceFragment's containing activity should implement to be able to process preference items that wish to switch to a new screen of preferences.
PreferenceFragmentCompat	Shows a hierarchy of `Preference` objects as lists.
PreferenceFragmentCompat.OnPreferenceDisplayDialogCallback
PreferenceFragmentCompat.OnPreferenceStartFragmentCallback	Interface that PreferenceFragment's containing activity should implement to be able to process preference items that wish to switch to a specified fragment.
PreferenceFragmentCompat.OnPreferenceStartScreenCallback	Interface that PreferenceFragment's containing activity should implement to be able to process preference items that wish to switch to a new screen of preferences.
PreferenceGroup	A container for multiple `Preference` objects.
PreferenceGroup	A container for multiple `Preference` objects.
PreferenceGroup.PreferencePositionCallback	Interface for PreferenceGroup Adapters to implement so that `scrollToPreference(String)` and `scrollToPreference(Preference)` or `scrollToPreference(String)` and `scrollToPreference(Preference)` can determine the correct scroll position to request.
PreferenceManager	Used to help create `Preference` hierarchies from activities or XML.
PreferenceManager	Used to help create `Preference` hierarchies from activities or XML.
PreferenceManager.OnActivityDestroyListener	Interface definition for a class that will be called when the container's activity is destroyed.
PreferenceManager.OnActivityResultListener	Interface definition for a class that will be called when the container's activity receives an activity result.
PreferenceManager.OnActivityStopListener	Interface definition for a class that will be called when the container's activity is stopped.
PreferenceManager.OnDisplayPreferenceDialogListener	Interface definition for a class that will be called when a `Preference` requests to display a dialog.
PreferenceManager.OnNavigateToScreenListener	Interface definition for a class that will be called when a `PreferenceScreen` requests navigation.
PreferenceManager.OnPreferenceTreeClickListener	Interface definition for a callback to be invoked when a `Preference` in the hierarchy rooted at this `PreferenceScreen` is clicked.
Preferences	A node in a hierarchical collection of preference data.
PreferenceScreen	Represents a top-level `Preference` that is the root of a Preference hierarchy.
PreferenceScreen	Represents a top-level `Preference` that is the root of a Preference hierarchy.
PreferencesFactory	A factory object that generates Preferences objects.
PreferenceViewHolder	A `RecyclerView.ViewHolder` class which caches views associated with the default `Preference` layouts.
PreparedStatement	An object that represents a precompiled SQL statement.
Presentation	Base class for presentations.
Presenter	A Presenter is used to generate `View`s and bind Objects to them on demand.
Presenter.ViewHolder	ViewHolder can be subclassed and used to cache any view accessors needed to improve binding performance (for example, results of findViewById) without needing to subclass a View.
Presenter.ViewHolderTask	Base class to perform a task on Presenter.ViewHolder.
PresenterSelector	A PresenterSelector is used to obtain a `Presenter` for a given Object.
PresenterSwitcher	An abstract helper class that switches a view in its parent view using a `PresenterSelector`.
PresetReverb	A sound generated within a room travels in many directions.
PresetReverb.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the PresetReverb when a parameter value has changed.
PresetReverb.Settings	The Settings class regroups all preset reverb parameters.
PrimitiveIterator<T, T_CONS>	A base type for primitive specializations of `Iterator`.
PrimitiveIterator.OfDouble	An Iterator specialized for `double` values.
PrimitiveIterator.OfInt	An Iterator specialized for `int` values.
PrimitiveIterator.OfLong	An Iterator specialized for `long` values.
Principal	This interface represents the abstract notion of a principal, which can be used to represent any entity, such as an individual, a corporation, and a login id.
PrintAttributes	This class represents the attributes of a print job.
PrintAttributes.Builder	Builder for creating `PrintAttributes`.
PrintAttributes.Margins	This class specifies content margins.
PrintAttributes.MediaSize	This class specifies a supported media size.
PrintAttributes.Resolution	This class specifies a supported resolution in DPI (dots per inch).
PrintDocument	This class represents a printed document from the perspective of a print service.
PrintDocumentAdapter	Base class that provides the content of a document to be printed.
PrintDocumentAdapter.LayoutResultCallback	Base class for implementing a callback for the result of `onLayout(PrintAttributes, PrintAttributes, CancellationSignal, LayoutResultCallback, Bundle)`.
PrintDocumentAdapter.WriteResultCallback	Base class for implementing a callback for the result of `onWrite(PageRange[], ParcelFileDescriptor, CancellationSignal, WriteResultCallback)`.
PrintDocumentInfo	This class encapsulates information about a document for printing purposes.
PrintDocumentInfo.Builder	Builder for creating a `PrintDocumentInfo`.
PrintedPdfDocument	This class is a helper for creating a PDF file for given print attributes.
Printer	Simple interface for printing text, allowing redirection to various targets.
PrinterCapabilitiesInfo	This class represents the capabilities of a printer.
PrinterCapabilitiesInfo.Builder	Builder for creating of a `PrinterCapabilitiesInfo`.
PrinterDiscoverySession	This class encapsulates the interaction between a print service and the system during printer discovery.
PrinterId	This class represents the unique id of a printer.
PrinterInfo	This class represents the description of a printer.
PrinterInfo.Builder	Builder for creating of a `PrinterInfo`.
PrintHelper	Helper for printing bitmaps.
PrintHelper.OnPrintFinishCallback	Callback for observing when a print operation is completed.
PrintJob	This class represents a print job from the perspective of an application.
PrintJob	This class represents a print job from the perspective of a print service.
PrintJobId	This class represents the id of a print job.
PrintJobInfo	This class represents the description of a print job.
PrintJobInfo.Builder	Builder for creating a `PrintJobInfo`.
PrintManager	System level service for accessing the printing capabilities of the platform.
PrintService	This is the base class for implementing print services.
PrintStream	A `PrintStream` adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
PrintStreamPrinter	Implementation of a `Printer` that sends its output to a `PrintStream`.
PrintWriter	Prints formatted representations of objects to a text-output stream.
PrintWriterPrinter	Implementation of a `Printer` that sends its output to a `PrintWriter`.
PriorityBlockingQueue<E>	An unbounded blocking queue that uses the same ordering rules as class `PriorityQueue` and supplies blocking retrieval operations.
PriorityQueue<E>	An unbounded priority queue based on a priority heap.
PrivateCredentialPermission	Legacy security code; do not use.
PrivateKey	A private key.
PrivilegedAction<T>	Legacy security code; do not use.
PrivilegedActionException	Legacy security code; do not use.
PrivilegedExceptionAction<T>	Legacy security code; do not use.
Process	Tools for managing OS processes.
Process	The `start()` and `Runtime.exec` methods create a native process and return an instance of a subclass of `Process` that can be used to control the process and obtain information about it.
ProcessBuilder	This class is used to create operating system processes.
ProcessedData	An entity class that wraps the result of a `processDrmInfo()` transaction between a device and a DRM server.
ProcessHealthStats	Keys for `HealthStats` returned from `HealthStats.getStats(int)` with the `UidHealthStats.STATS_PROCESSES` key.
ProcessingInstruction	The `ProcessingInstruction` interface represents a "processing instruction", used in XML as a way to keep processor-specific information in the text of the document.
ProgressBar	Visual indicator of progress in some operation.
ProgressBarManager	Manager for showing/hiding progress bar widget.
ProgressDialog	A dialog showing a progress indicator and an optional text message or view.
Properties	The `Properties` class represents a persistent set of properties.
Property<T, V>	A property is an abstraction that can be used to represent a mutable value that is held in a host object.
PropertyChangeEvent	A "PropertyChange" event gets delivered whenever a bean changes a "bound" or "constrained" property.
PropertyChangeListener	A "PropertyChange" event gets fired whenever a bean changes a "bound" property.
PropertyChangeListenerProxy	A class which extends the `EventListenerProxy` specifically for adding a `PropertyChangeListener` with a "bound" property.
PropertyChangeRegistry	Utility class for managing Observable callbacks.
PropertyChangeSupport	This is a utility class that can be used by beans that support bound properties.
PropertyPermission	Legacy security code; do not use.
PropertyResourceBundle	`PropertyResourceBundle` is a concrete subclass of `ResourceBundle` that manages resources for a locale using a set of static strings from a property file.
PropertyValuesHolder	This class holds information about a property and the values that that property should take on during an animation.
Protectable	A Protectable can be run and can throw a Throwable.
ProtectionDomain	Legacy security code; do not use.
ProtocolException	Thrown to indicate that there is an error in the underlying protocol, such as a TCP error.
ProtocolFamily	Represents a family of communication protocols.
Provider	This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
Provider.Service	The description of a security service.
ProviderException	A runtime exception for Provider exceptions (such as misconfiguration errors or unrecoverable internal errors), which may be subclassed by Providers to throw specialized, provider-specific runtime errors.
ProviderInfo	Holds information about a specific `content provider`.
ProviderTestCase<T extends ContentProvider>	This class was deprecated in API level 3. this class extends InstrumentationTestCase but should extend AndroidTestCase. Use ProviderTestCase2, which corrects this problem, instead.
ProviderTestCase2<T extends ContentProvider>	This test case class provides a framework for testing a single `ContentProvider` and for testing your app code with an isolated content provider.
Proxy	A convenience class for accessing the user and default proxy settings.
Proxy	`Proxy` provides static methods for creating dynamic proxy classes and instances, and it is also the superclass of all dynamic proxy classes created by those methods.
Proxy	This class represents a proxy setting, typically a type (http, socks) and a socket address.
Proxy.Type	Represents the proxy type.
ProxyInfo	Describes a proxy configuration.
ProxySelector	Selects the proxy server to use, if any, when connecting to the network resource referenced by a URL.
PskKeyManager	Provider of key material for pre-shared key (PSK) key exchange used in TLS-PSK cipher suites.
PSource	This class specifies the source for encoding input P in OAEP Padding, as defined in the PKCS #1 standard.
PSource.PSpecified	This class is used to explicitly specify the value for encoding input P in OAEP Padding.
PSSParameterSpec	This class specifies a parameter spec for RSA-PSS signature scheme, as defined in the PKCS#1 v2.1 standard.
PublicKey	A public key.
PushbackInputStream	A `PushbackInputStream` adds functionality to another input stream, namely the ability to "push back" or "unread" one byte.
PushbackReader	A character-stream reader that allows characters to be pushed back into the stream.
Px	Denotes that an integer parameter, field or method return value is expected to represent a pixel dimension.

Q

QName	`QName` represents a qualified name as defined in the XML specifications: XML Schema Part2: Datatypes specification, Namespaces in XML, Namespaces in XML Errata.
Queue<E>	A collection designed for holding elements prior to processing.
QuickContactBadge	Widget used to show an image with the standard QuickContact badge and on-click behavior.
QuoteSpan
QwertyKeyListener	This is the standard key listener for alphabetic input on qwerty keyboards.

R

R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R.anim
R.anim
R.anim
R.animator
R.animator
R.array
R.attr
R.attr
R.attr
R.attr
R.attr
R.attr
R.attr
R.attr
R.attr
R.attr
R.attr
R.bool
R.bool
R.color
R.color
R.color
R.color
R.color
R.color
R.color
R.dimen
R.dimen
R.dimen
R.dimen
R.dimen
R.dimen
R.dimen
R.dimen
R.dimen
R.drawable
R.drawable
R.drawable
R.drawable
R.drawable
R.drawable
R.fraction
R.fraction
R.id
R.id
R.id
R.id
R.id
R.id
R.id
R.id
R.id
R.id
R.integer
R.integer
R.integer
R.integer
R.integer
R.interpolator
R.interpolator
R.layout
R.layout
R.layout
R.layout
R.layout
R.layout
R.layout
R.layout
R.menu
R.mipmap
R.plurals
R.raw
R.raw
R.string
R.string
R.string
R.string
R.string
R.string
R.style
R.style
R.style
R.style
R.style
R.style
R.style
R.style
R.style
R.styleable
R.styleable
R.styleable
R.styleable
R.styleable
R.styleable
R.styleable
R.styleable
R.styleable
R.styleable
R.styleable
R.transition
R.transition
R.xml
RadialGradient
RadioButton	A radio button is a two-states button that can be either checked or unchecked.
RadioGroup	This class is used to create a multiple-exclusion scope for a set of radio buttons.
RadioGroup.LayoutParams	This set of layout parameters defaults the width and the height of the children to `WRAP_CONTENT` when they are not specified in the XML file.
RadioGroup.OnCheckedChangeListener	Interface definition for a callback to be invoked when the checked radio button changed in this group.
Random	An instance of this class is used to generate a stream of pseudorandom numbers.
RandomAccess	Marker interface used by `List` implementations to indicate that they support fast (generally constant time) random access.
RandomAccessFile	Instances of this class support both reading and writing to a random access file.
Range<T extends Comparable<? super T>>	Immutable class for describing the range of two numeric values.
RangeValueIterator	Interface for enabling iteration over sets of <int index, int value>, where index is the sorted integer index in ascending order and value, its associated integer value.
RangeValueIterator.Element	Return result wrapper for android.icu.util.RangeValueIterator.
Rasterizer
RasterizerSpan
Rating	A class to encapsulate rating information used as content metadata.
RatingBar	A RatingBar is an extension of SeekBar and ProgressBar that shows a rating in stars.
RatingBar.OnRatingBarChangeListener	A callback that notifies clients when the rating has been changed.
RatingCompat	A class to encapsulate rating information used as content metadata.
Rational	An immutable data type representation a rational number.
RawRes	Denotes that an integer parameter, field or method return value is expected to be a raw resource reference.
RC2ParameterSpec	This class specifies the parameters used with the RC2 algorithm.
RC5ParameterSpec	This class specifies the parameters used with the RC5 algorithm.
Readable	A `Readable` is a source of characters.
ReadableByteChannel	A channel that can read bytes.
Reader	Abstract class for reading character streams.
ReadOnlyBufferException	Unchecked exception thrown when a content-mutation method such as `put` or `compact` is invoked upon a read-only buffer.
ReadWriteLock	A `ReadWriteLock` maintains a pair of associated `locks`, one for read-only operations and one for writing.
ReceiverCallNotAllowedException	This exception is thrown from `registerReceiver(BroadcastReceiver, IntentFilter)` and `bindService(Intent, ServiceConnection, int)` when these methods are being used from an `BroadcastReceiver` component.
RecognitionListener	Used for receiving notifications from the SpeechRecognizer when the recognition related events occur.
RecognitionService	This class provides a base class for recognition service implementations.
RecognitionService.Callback	This class receives callbacks from the speech recognition service and forwards them to the user.
RecognizerIntent	Constants for supporting speech recognition through starting an `Intent`
RecognizerResultsIntent	Constants for intents related to showing speech recognition results.
RecommendationExtender	Helper class to add content info extensions to notifications.
RecoverySystem	RecoverySystem contains methods for interacting with the Android recovery system (the separate partition that can be used to install system updates, wipe user data, etc.)
RecoverySystem.ProgressListener	Interface definition for a callback to be invoked regularly as verification proceeds.
Rect	Rect holds four integer coordinates for a rectangle.
RectEvaluator	This evaluator can be used to perform type interpolation between `Rect` values.
RectF	RectF holds four float coordinates for a rectangle.
RectShape	Defines a rectangle shape.
RecursiveAction	A recursive resultless `ForkJoinTask`.
RecursiveTask<V>	A recursive result-bearing `ForkJoinTask`.
RecyclerView	A flexible view for providing a limited window into a large data set.
RecyclerView.Adapter<VH extends RecyclerView.ViewHolder>	Base class for an Adapter Adapters provide a binding from an app-specific data set to views that are displayed within a `RecyclerView`.
RecyclerView.AdapterDataObserver	Observer base class for watching changes to an `RecyclerView.Adapter`.
RecyclerView.ChildDrawingOrderCallback	A callback interface that can be used to alter the drawing order of RecyclerView children.
RecyclerView.ItemAnimator	This class defines the animations that take place on items as changes are made to the adapter.
RecyclerView.ItemAnimator.AdapterChanges	The set of flags that might be passed to `recordPreLayoutInformation(State, ViewHolder, int, List)`.
RecyclerView.ItemAnimator.ItemAnimatorFinishedListener	This interface is used to inform listeners when all pending or running animations in an ItemAnimator are finished.
RecyclerView.ItemAnimator.ItemHolderInfo	A simple data structure that holds information about an item's bounds.
RecyclerView.ItemDecoration	An ItemDecoration allows the application to add a special drawing and layout offset to specific item views from the adapter's data set.
RecyclerView.LayoutManager	A `LayoutManager` is responsible for measuring and positioning item views within a `RecyclerView` as well as determining the policy for when to recycle item views that are no longer visible to the user.
RecyclerView.LayoutManager.Properties	Some general properties that a LayoutManager may want to use.
RecyclerView.LayoutParams	`LayoutParams` subclass for children of `RecyclerView`.
RecyclerView.OnChildAttachStateChangeListener	A Listener interface that can be attached to a RecylcerView to get notified whenever a ViewHolder is attached to or detached from RecyclerView.
RecyclerView.OnItemTouchListener	An OnItemTouchListener allows the application to intercept touch events in progress at the view hierarchy level of the RecyclerView before those touch events are considered for RecyclerView's own scrolling behavior.
RecyclerView.OnScrollListener	An OnScrollListener can be added to a RecyclerView to receive messages when a scrolling event has occurred on that RecyclerView.
RecyclerView.RecycledViewPool	RecycledViewPool lets you share Views between multiple RecyclerViews.
RecyclerView.Recycler	A Recycler is responsible for managing scrapped or detached item views for reuse.
RecyclerView.RecyclerListener	A RecyclerListener can be set on a RecyclerView to receive messages whenever a view is recycled.
RecyclerView.SimpleOnItemTouchListener	An implementation of `RecyclerView.OnItemTouchListener` that has empty method bodies and default return values.
RecyclerView.SmoothScroller	Base class for smooth scrolling.
RecyclerView.SmoothScroller.Action	Holds information about a smooth scroll request by a `RecyclerView.SmoothScroller`.
RecyclerView.State	Contains useful information about the current RecyclerView state like target scroll position or view focus.
RecyclerView.ViewCacheExtension	ViewCacheExtension is a helper class to provide an additional layer of view caching that can ben controlled by the developer.
RecyclerView.ViewHolder	A ViewHolder describes an item view and metadata about its place within the RecyclerView.
RecyclerViewAccessibilityDelegate	The AccessibilityDelegate used by RecyclerView.
ReentrantLock	A reentrant mutual exclusion `Lock` with the same basic behavior and semantics as the implicit monitor lock accessed using `synchronized` methods and statements, but with extended capabilities.
ReentrantReadWriteLock	An implementation of `ReadWriteLock` supporting similar semantics to `ReentrantLock`.
ReentrantReadWriteLock.ReadLock	The lock returned by method `readLock()`.
ReentrantReadWriteLock.WriteLock	The lock returned by method `writeLock()`.
Ref	The mapping in the Java programming language of an SQL `REF` value, which is a reference to an SQL structured type value in the database.
Reference<T>	Abstract base class for reference objects.
ReferenceQueue<T>	Reference queues, to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected.
ReflectiveOperationException	Common superclass of exceptions thrown by reflective operations in core reflection.
ReflectPermission	Legacy security code; do not use.
Region
Region.Op
RegionIterator
RejectedExecutionException	Exception thrown by an `Executor` when a task cannot be accepted for execution.
RejectedExecutionHandler	A handler for tasks that cannot be executed by a `ThreadPoolExecutor`.
RelativeDateTimeFormatter	Formats simple relative dates.
RelativeDateTimeFormatter.AbsoluteUnit	Represents an absolute unit.
RelativeDateTimeFormatter.Direction	Represents a direction for an absolute unit e.g "Next Tuesday" or "Last Tuesday"
RelativeDateTimeFormatter.RelativeUnit	Represents the unit for formatting a relative date.
RelativeDateTimeFormatter.Style	The formatting style
RelativeLayout	A Layout where the positions of the children can be described in relation to each other or to the parent.
RelativeLayout.LayoutParams	Per-child layout information associated with RelativeLayout.
RelativeSizeSpan
RemoteCallbackList<E extends IInterface>	Takes care of the grunt work of maintaining a list of remote interfaces, typically for the use of performing callbacks from a `Service` to its clients.
RemoteConference	A conference provided to a `ConnectionService` by another `ConnectionService` through `conferenceRemoteConnections(RemoteConnection, RemoteConnection)`.
RemoteConference.Callback	Callback base class for `RemoteConference`.
RemoteConnection	A connection provided to a `ConnectionService` by another `ConnectionService` running in a different process.
RemoteConnection.Callback	Callback base class for `RemoteConnection`.
RemoteConnection.VideoProvider	`RemoteConnection.VideoProvider` associated with a `RemoteConnection`.
RemoteConnection.VideoProvider.Callback	Callback class used by the `RemoteConnection.VideoProvider` to relay events from the `Connection.VideoProvider`.
RemoteControlClient	This class was deprecated in API level 21. Use `MediaSession` instead.
RemoteControlClient.MetadataEditor	This class was deprecated in API level 21. Use `MediaMetadata` and `MediaSession` instead.
RemoteControlClient.OnGetPlaybackPositionListener	Interface definition for a callback to be invoked when the media playback position is queried.
RemoteControlClient.OnMetadataUpdateListener	Interface definition for a callback to be invoked when one of the metadata values has been updated.
RemoteControlClient.OnPlaybackPositionUpdateListener	Interface definition for a callback to be invoked when the media playback position is requested to be updated.
RemoteController	This class was deprecated in API level 21. Use `MediaController` instead.
RemoteController.MetadataEditor	A class to read the metadata published by a `RemoteControlClient`, or send a `RemoteControlClient` new values for keys that can be edited.
RemoteController.OnClientUpdateListener	Interface definition for the callbacks to be invoked whenever media events, metadata and playback status are available.
RemoteException	Parent exception for all Binder remote-invocation errors
RemoteInput	A `RemoteInput` object specifies input to be collected from a user to be passed along with an intent inside a `PendingIntent` that is sent.
RemoteInput	Helper for using the `RemoteInput` API introduced after API level 4 in a backwards compatible fashion.
RemoteInput.Builder	Builder class for `RemoteInput` objects.
RemoteInput.Builder	Builder class for `RemoteInput` objects.
RemotePlaybackClient	A helper class for playing media on remote routes using the remote playback protocol defined by `MediaControlIntent`.
RemotePlaybackClient.ActionCallback	Base callback type for remote playback requests.
RemotePlaybackClient.ItemActionCallback	Callback for remote playback requests that operate on items.
RemotePlaybackClient.OnMessageReceivedListener	A callback that will receive messages from media sessions.
RemotePlaybackClient.SessionActionCallback	Callback for remote playback requests that operate on sessions.
RemotePlaybackClient.StatusCallback	A callback that will receive media status updates.
RemoteViews	A class that describes a view hierarchy that can be displayed in another process.
RemoteViews.ActionException	Exception to send when something goes wrong executing an action
RemoteViews.RemoteView	This annotation indicates that a subclass of View is alllowed to be used with the `RemoteViews` mechanism.
RemoteViewsService	The service to be connected to for a remote adapter to request RemoteViews.
RemoteViewsService.RemoteViewsFactory	An interface for an adapter between a remote collection view (ListView, GridView, etc) and the underlying data for that view.
RenamingDelegatingContext	This class was deprecated in API level 24. New tests should be written using the Android Testing Support Library.
RenderScript	This class provides access to a RenderScript context, which controls RenderScript initialization, resource management, and teardown.
RenderScript	This class provides access to a RenderScript context, which controls RenderScript initialization, resource management, and teardown.
RenderScript.ContextType	ContextType specifies the specific type of context to be created.
RenderScript.ContextType	ContextType specifies the specific type of context to be created.
RenderScript.Priority	RenderScript worker thread priority enumeration.
RenderScript.Priority	RenderScript worker thread priority enumeration.
RenderScript.RSErrorHandler	The runtime error handler base class.
RenderScript.RSErrorHandler	The runtime error handler base class.
RenderScript.RSMessageHandler	The base class from which an application should derive in order to receive RS messages from scripts.
RenderScript.RSMessageHandler	The base class from which an application should derive in order to receive RS messages from scripts.
Repeatable	The annotation type `java.lang.annotation.Repeatable` is used to indicate that the annotation type whose declaration it (meta-)annotates is repeatable.
Replaceable	`Replaceable` is an interface representing a string of characters that supports the replacement of a range of itself with a new string of characters.
ReplacementSpan
ReplacementTransformationMethod	This transformation method causes the characters in the `getOriginal()` array to be replaced by the corresponding characters in the `getReplacement()` array.
RequiresApi	Denotes that the annotated element should only be called on the given API level or higher.
RequiresPermission	Denotes that the annotated element requires (or may require) one or more permissions.
RequiresPermission.Read	Specifies that the given permission is required for read operations.
RequiresPermission.Write	Specifies that the given permission is required for write operations.
ResolveInfo	Information that is returned from resolving an intent against an IntentFilter.
ResolveInfo.DisplayNameComparator
ResourceBundle	Resource bundles contain locale-specific objects.
ResourceBundle.Control	`ResourceBundle.Control` defines a set of callback methods that are invoked by the `ResourceBundle.getBundle` factory methods during the bundle loading process.
ResourceBusyException	Exception thrown when an operation on a MediaDrm object is attempted and hardware resources are not available, due to being in use.
ResourceCursorAdapter	Static library support version of the framework's `ResourceCursorAdapter`.
ResourceCursorAdapter	An easy adapter that creates views defined in an XML file.
ResourceCursorTreeAdapter	A fairly simple ExpandableListAdapter that creates views defined in an XML file.
Resources	Class for accessing an application's resources.
Resources.NotFoundException	This exception is thrown by the resource APIs when a requested resource can not be found.
Resources.Theme	This class holds the current attribute values for a particular theme.
ResourcesCompat	Helper for accessing features in `Resources` introduced after API level 4 in a backwards compatible fashion.
ResponseCache	Represents implementations of URLConnection caches.
RestoreObserver	Callback class for receiving progress reports during a restore operation.
RestrictionEntry	Applications can expose restrictions for a restricted user on a multiuser device.
RestrictionsManager	Provides a mechanism for apps to query restrictions imposed by an entity that manages the user.
RestrictionsReceiver	Abstract implementation of a Restrictions Provider BroadcastReceiver.
Result	An object that implements this interface contains the information needed to build a transformation result tree.
ResultReceiver	Generic interface for receiving a callback result from someone.
ResultSet	A table of data representing a database result set, which is usually generated by executing a statement that queries the database.
ResultSetMetaData	An object that can be used to get information about the types and properties of the columns in a `ResultSet` object.
Retention	Indicates how long annotations with the annotated type are to be retained.
RetentionPolicy	Annotation retention policy.
Rfc822Token	This class stores an RFC 822-like name, address, and comment, and provides methods to convert them to quoted strings.
Rfc822Tokenizer	This class works as a Tokenizer for MultiAutoCompleteTextView for address list fields, and also provides a method for converting a string of addresses (such as might be typed into such a field) into a series of Rfc822Tokens.
RggbChannelVector	Immutable class to store a 4-element vector of floats indexable by a bayer RAW 2x2 pixel block.
Ringtone	Ringtone provides a quick method for playing a ringtone, notification, or other similar types of sounds.
RingtoneManager	RingtoneManager provides access to ringtones, notification, and other types of sounds.
RingtonePreference	A `Preference` that allows the user to choose a ringtone from those on the device.
RippleDrawable	Drawable that shows a ripple effect in response to state changes.
RootElement	The root XML element.
RotateAnimation	An animation that controls the rotation of an object.
RotateDrawable	A Drawable that can rotate another Drawable based on the current level value.
RoundedBitmapDrawable	A Drawable that wraps a bitmap and can be drawn with rounded corners.
RoundedBitmapDrawableFactory	Constructs `RoundedBitmapDrawable` objects, either from Bitmaps directly, or from streams and files.
RoundingMode	Specifies the rounding behavior for operations whose results cannot be represented exactly.
RoundRectShape	Creates a rounded-corner rectangle.
RouteInfo	Represents a network route.
Row	The base class for all rows.
RowHeaderPresenter	RowHeaderPresenter provides a default presentation for `HeaderItem` using a `RowHeaderView`.
RowHeaderPresenter.ViewHolder	A ViewHolder for the RowHeaderPresenter.
RowHeaderView	RowHeaderView is a header text view.
RowId	The representation (mapping) in the Java programming language of an SQL ROWID value.
RowIdLifetime	Enumeration for RowId life-time values.
RowPresenter	An abstract `Presenter` that renders an Object in RowsFragment, the object can be subclass `Row` or a generic one.
RowPresenter.ViewHolder	A ViewHolder for a `Row`.
RowSet	The interface that adds support to the JDBC API for the JavaBeans^TM component model.
RowSetEvent	An `Event` object generated when an event occurs to a `RowSet` object.
RowSetInternal	The interface that a `RowSet` object implements in order to present itself to a `RowSetReader` or `RowSetWriter` object.
RowSetListener	An interface that must be implemented by a component that wants to be notified when a significant event happens in the life of a `RowSet` object.
RowSetMetaData	An object that contains information about the columns in a `RowSet` object.
RowSetReader	The facility that a disconnected `RowSet` object calls on to populate itself with rows of data.
RowSetWriter	An object that implements the `RowSetWriter` interface, called a writer.
RowsFragment	An ordered set of rows of leanback widgets.
RowsFragment.MainFragmentAdapter
RowsFragment.MainFragmentRowsAdapter
RowsSupportFragment	An ordered set of rows of leanback widgets.
RowsSupportFragment.MainFragmentAdapter
RowsSupportFragment.MainFragmentRowsAdapter
RSAKey	The interface to an RSA public or private key.
RSAKeyGenParameterSpec	This class specifies the set of parameters used to generate an RSA key pair.
RSAMultiPrimePrivateCrtKey	The interface to an RSA multi-prime private key, as defined in the PKCS#1 v2.1, using the Chinese Remainder Theorem (CRT) information values.
RSAMultiPrimePrivateCrtKeySpec	This class specifies an RSA multi-prime private key, as defined in the PKCS#1 v2.1, using the Chinese Remainder Theorem (CRT) information values for efficiency.
RSAOtherPrimeInfo	This class represents the triplet (prime, exponent, and coefficient) inside RSA's OtherPrimeInfo structure, as defined in the PKCS#1 v2.1.
RSAPrivateCrtKey	The interface to an RSA private key, as defined in the PKCS#1 standard, using the Chinese Remainder Theorem (CRT) information values.
RSAPrivateCrtKeySpec	This class specifies an RSA private key, as defined in the PKCS#1 standard, using the Chinese Remainder Theorem (CRT) information values for efficiency.
RSAPrivateKey	The interface to an RSA private key.
RSAPrivateKeySpec	This class specifies an RSA private key.
RSAPublicKey	The interface to an RSA public key.
RSAPublicKeySpec	This class specifies an RSA public key.
RSDriverException	Base class for all exceptions thrown by the Android RenderScript
RSDriverException	Base class for all exceptions thrown by the Android RenderScript
RSIllegalArgumentException	Base class for all exceptions thrown by the Android RenderScript
RSIllegalArgumentException	Base class for all exceptions thrown by the Android RenderScript
RSInvalidStateException	Base class for all exceptions thrown by the Android RenderScript
RSInvalidStateException	Base class for all exceptions thrown by the Android RenderScript
RSRuntimeException	Base class for all exceptions thrown by the Android RenderScript
RSRuntimeException	Base class for all exceptions thrown by the Android RenderScript
RtpStream	RtpStream represents the base class of streams which send and receive network packets with media payloads over Real-time Transport Protocol (RTP).
RuleBasedCollator	RuleBasedCollator is a concrete subclass of Collator.
RuleBasedCollator	The `RuleBasedCollator` class is a concrete subclass of `Collator` that provides a simple, data-driven, table collator.
Runnable	The `Runnable` interface should be implemented by any class whose instances are intended to be executed by a thread.
RunnableFuture<V>	A `Future` that is `Runnable`.
RunnableScheduledFuture<V>	A `ScheduledFuture` that is `Runnable`.
Runtime	Every Java application has a single instance of class `Runtime` that allows the application to interface with the environment in which the application is running.
RuntimeException	`RuntimeException` is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.
RuntimePermission	Legacy security code; do not use.

S

SafeVarargs	A programmer assertion that the body of the annotated method or constructor does not perform potentially unsafe operations on its varargs parameter.
Sampler	Sampler object that defines how Allocations can be read as textures within a kernel.
Sampler	Sampler object that defines how Allocations can be read as textures within a kernel.
Sampler.Builder	Builder for creating non-standard samplers.
Sampler.Builder	Builder for creating non-standard samplers.
Sampler.Value
Sampler.Value
Savepoint	The representation of a savepoint, which is a point within the current transaction that can be referenced from the `Connection.rollback` method.
SAXException	Encapsulate a general SAX error or warning.
SAXNotRecognizedException	Exception class for an unrecognized identifier.
SAXNotSupportedException	Exception class for an unsupported operation.
SAXParseException	Encapsulate an XML parse error or warning.
SAXParser	Defines the API that wraps an `XMLReader` implementation class.
SAXParserFactory	Defines a factory API that enables applications to configure and obtain a SAX based parser to parse XML documents.
SAXResult	Acts as an holder for a transformation Result.
SAXSource	Acts as an holder for SAX-style Source.
SAXTransformerFactory	This class extends TransformerFactory to provide SAX-specific factory methods.
ScaleAnimation	An animation that controls the scale of an object.
ScaleDrawable	A Drawable that changes the size of another Drawable based on its current level value.
ScaleGestureDetector	Detects scaling transformation gestures using the supplied `MotionEvent`s.
ScaleGestureDetector.OnScaleGestureListener	The listener for receiving notifications when gestures occur.
ScaleGestureDetector.SimpleOnScaleGestureListener	A convenience class to extend when you only want to listen for a subset of scaling-related events.
ScaleGestureDetectorCompat	Helper for accessing features in `ScaleGestureDetector` introduced after API level 19 (KitKat) in a backwards compatible fashion.
ScaleXSpan
ScanCallback	Bluetooth LE scan callbacks.
ScanFilter	Criteria for filtering result from Bluetooth LE scans.
ScanFilter.Builder	Builder class for `ScanFilter`.
Scanner	A simple text scanner which can parse primitive types and strings using regular expressions.
ScanRecord	Represents a scan record from Bluetooth LE scan.
ScanResult	ScanResult for Bluetooth LE scan.
ScanResult	Describes information about a detected access point.
ScanSettings	Bluetooth LE scan settings are passed to `startScan(ScanCallback)` to define the parameters for the scan.
ScanSettings.Builder	Builder for `ScanSettings`.
ScatteringByteChannel	A channel that can read bytes into a sequence of buffers.
Scene	A scene represents the collection of values that various properties in the View hierarchy will have when the scene is applied.
ScheduledExecutorService	An `ExecutorService` that can schedule commands to run after a given delay, or to execute periodically.
ScheduledFuture<V>	A delayed result-bearing action that can be cancelled.
ScheduledThreadPoolExecutor	A `ThreadPoolExecutor` that can additionally schedule commands to run after a given delay, or to execute periodically.
Schema	Immutable in-memory representation of grammar.
SchemaFactory	Factory that creates `Schema` objects. Entry-point to the validation API.
SchemaFactoryLoader	This class was removed from JAXP 1.3 before it was finalized but was mistakenly included in Java 5.
Script	The parent class for all executable scripts.
Script	The parent class for all executable scripts.
Script.Builder	Only intended for use by generated reflected code.
Script.Builder	Only intended for use by generated reflected code.
Script.FieldBase	Only intended for use by generated reflected code.
Script.FieldBase	Only intended for use by generated reflected code.
Script.FieldID	FieldID is an identifier for a Script + exported field pair.
Script.FieldID	FieldID is an identifier for a Script + exported field pair.
Script.InvokeID	InvokeID is an identifier for an invoke function.
Script.InvokeID	InvokeID is an identifier for a invoke function.
Script.KernelID	KernelID is an identifier for a Script + root function pair.
Script.KernelID	KernelID is an identifier for a Script + root function pair.
Script.LaunchOptions	Class for specifying the specifics about how a kernel will be launched.
Script.LaunchOptions	Class for specifying the specifics about how a kernel will be launched.
ScriptC	The superclass for all user-defined scripts.
ScriptC	The superclass for all user-defined scripts.
ScriptGroup	A group of kernels that are executed together with one execution call as if they were a single kernel In addition to kernels, a script group may contain invocable functions as well.
ScriptGroup	A group of kernels that are executed together with one execution call as if they were a single kernel In addition to kernels, a script group may contain invocable functions as well.
ScriptGroup.Binding	Represents a binding of a value to a global variable in a kernel or invocable function.
ScriptGroup.Binding	Represents a binding of a value to a global variable in a kernel or invocable function.
ScriptGroup.Builder	This class was deprecated in API level 23. Use `ScriptGroup.Builder2` instead.
ScriptGroup.Builder	This class is deprecated. Use `ScriptGroup.Builder2` instead.
ScriptGroup.Builder2	The builder class for creating script groups A script group is created using closures (see class `ScriptGroup.Closure`).
ScriptGroup.Builder2	The builder class for creating script groups A script group is created using closures (see class `ScriptGroup.Closure`).
ScriptGroup.Closure	An opaque class for closures A closure represents a function call to a kernel or invocable function, combined with arguments and values for global variables.
ScriptGroup.Closure	An opaque class for closures A closure represents a function call to a kernel or invocable function, combined with arguments and values for global variables.
ScriptGroup.Future	An opaque class for futures A future represents an output of a closure, either the return value of the function, or the value of a global variable written by the function.
ScriptGroup.Future	An opaque class for futures A future represents an output of a closure, either the return value of the function, or the value of a global variable written by the function.
ScriptGroup.Input	An opaque class for script group inputs Created by calling the `addInput()` method.
ScriptGroup.Input	An opaque class for unbound values (used for script group inputs) Created by calling the `addInput()` method.
ScriptIntrinsic	Base class for all Intrinsic scripts.
ScriptIntrinsic	Base class for all Intrinsic scripts.
ScriptIntrinsic3DLUT	Intrinsic for converting RGB to RGBA by using a 3D lookup table.
ScriptIntrinsic3DLUT	Intrinsic for converting RGB to RGBA by using a 3D lookup table.
ScriptIntrinsicBLAS	ScriptIntrinsicBLAS class provides high performance RenderScript APIs to BLAS.
ScriptIntrinsicBLAS	ScriptIntrinsicBLAS class provides high performance RenderScript APIs to BLAS.
ScriptIntrinsicBlend	Intrinsic kernels for blending two `Allocation` objects.
ScriptIntrinsicBlend	Intrinsic kernels for blending two `Allocation` objects.
ScriptIntrinsicBlur	Intrinsic Gausian blur filter.
ScriptIntrinsicBlur	Intrinsic Gausian blur filter.
ScriptIntrinsicColorMatrix	Intrinsic for applying a color matrix to allocations.
ScriptIntrinsicColorMatrix	Intrinsic for applying a color matrix to allocations.
ScriptIntrinsicConvolve3x3	Intrinsic for applying a 3x3 convolve to an allocation.
ScriptIntrinsicConvolve3x3	Intrinsic for applying a 3x3 convolve to an allocation.
ScriptIntrinsicConvolve5x5	Intrinsic for applying a 5x5 convolve to an allocation.
ScriptIntrinsicConvolve5x5	Intrinsic for applying a 5x5 convolve to an allocation.
ScriptIntrinsicHistogram	Intrinsic Histogram filter.
ScriptIntrinsicHistogram	Intrinsic Histogram filter.
ScriptIntrinsicLUT	Intrinsic for applying a per-channel lookup table.
ScriptIntrinsicLUT	Intrinsic for applying a per-channel lookup table.
ScriptIntrinsicResize	Intrinsic for performing a resize of a 2D allocation.
ScriptIntrinsicResize	Intrinsic for performing a resize of a 2D allocation.
ScriptIntrinsicYuvToRGB	Intrinsic for converting an Android YUV buffer to RGB.
ScriptIntrinsicYuvToRGB	Intrinsic for converting an Android YUV buffer to RGB.
Scroller	This class encapsulates scrolling.
ScrollerCompat	Provides access to new `Scroller` APIs when available.
ScrollingMovementMethod	A movement method that interprets movement keys by scrolling the text buffer.
ScrollingView	An interface that can be implemented by Views to provide scroll related APIs.
ScrollView	Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display.
SealedObject	This class enables a programmer to create an object and protect its confidentiality with a cryptographic algorithm.
SearchableInfo	Searchability meta-data for an activity.
SearchBar	A search widget containing a search orb and a text entry view.
SearchBar.SearchBarListener	Interface for receiving notification of search query changes.
SearchBar.SearchBarPermissionListener	Interface that handles runtime permissions requests.
SearchEditText	EditText widget that monitors keyboard changes.
SearchEditText.OnKeyboardDismissListener	Interface for receiving notification when the keyboard is dismissed.
SearchEvent	Class that contains information about an event that triggers a search.
SearchFragment	A fragment to handle searches.
SearchFragment.SearchResultProvider	Search API to be provided by the application.
SearchIterator	`SearchIterator` is an abstract base class that provides methods to search for a pattern within a text string.
SearchIterator.ElementComparisonType	Option to control how collation elements are compared.
SearchManager	This class provides access to the system search services.
SearchManager.OnCancelListener	See `setOnCancelListener(SearchManager.OnCancelListener)` for configuring your activity to monitor search UI state.
SearchManager.OnDismissListener	See `setOnDismissListener(SearchManager.OnDismissListener)` for configuring your activity to monitor search UI state.
SearchOrbView	A widget that draws a search affordance, represented by a round background and an icon.
SearchOrbView.Colors	A set of colors used to display the search orb.
SearchRecentSuggestions	This is a utility class providing access to `SearchRecentSuggestionsProvider`.
SearchRecentSuggestionsProvider	This superclass can be used to create a simple search suggestions provider for your application.
SearchSupportFragment	A fragment to handle searches.
SearchSupportFragment.SearchResultProvider	Search API to be provided by the application.
SearchView	A widget that provides a user interface for the user to enter a search query and submit a request to a search provider.
SearchView	A widget that provides a user interface for the user to enter a search query and submit a request to a search provider.
SearchView.OnCloseListener
SearchView.OnCloseListener
SearchView.OnQueryTextListener	Callbacks for changes to the query text.
SearchView.OnQueryTextListener	Callbacks for changes to the query text.
SearchView.OnSuggestionListener	Callback interface for selection events on suggestions.
SearchView.OnSuggestionListener	Callback interface for selection events on suggestions.
SearchViewCompat	Helper for accessing features in `SearchView` introduced after API level 4 in a backwards compatible fashion.
SearchViewCompat.OnCloseListenerCompat	Callback for closing the query UI.
SearchViewCompat.OnQueryTextListenerCompat	Callbacks for changes to the query text.
SecretKey	A secret (symmetric) key.
SecretKeyFactory	This class represents a factory for secret keys.
SecretKeyFactorySpi	This class defines the Service Provider Interface (SPI) for the `SecretKeyFactory` class.
SecretKeySpec	This class specifies a secret key in a provider-independent fashion.
SectionIndexer	Interface that may implemented on `Adapter`s to enable fast scrolling between sections of an `AbsListView`.
SectionRow	Used to represent section item in HeadersFragment.
SecureCacheResponse	Represents a cache response originally retrieved through secure means, such as TLS.
SecureClassLoader	This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.
SecureRandom	This class provides a cryptographically strong random number generator (RNG).
SecureRandomSpi	This class defines the Service Provider Interface (SPI) for the `SecureRandom` class.
Security	This class centralizes all security properties and common security methods.
SecurityException	Thrown by the security manager to indicate a security violation.
SecurityLog
SecurityLog.SecurityEvent	A class representing a security event log entry.
SecurityManager	Legacy security code; do not use.
SecurityPermission	Legacy security code; do not use.
SeekableByteChannel	A byte channel that maintains a current position and allows the position to be changed.
SeekBar	A SeekBar is an extension of ProgressBar that adds a draggable thumb.
SeekBar.OnSeekBarChangeListener	A callback that notifies clients when the progress level has been changed.
SelectableChannel	A channel that can be multiplexed via a `Selector`.
SelectFormat	`SelectFormat` supports the creation of internationalized messages by selecting phrases based on keywords.
Selection	Utility class for manipulating cursors and selections in CharSequences.
SelectionKey	A token representing the registration of a `SelectableChannel` with a `Selector`.
Selector	A multiplexor of `SelectableChannel` objects.
SelectorProvider	Service-provider class for selectors and selectable channels.
Semaphore	A counting semaphore.
Sensor	Class representing a sensor.
SensorAdditionalInfo	This class represents a `Sensor` additional information frame, which is reported through listener callback `onSensorAdditionalInfo`.
SensorEvent	This class represents a `Sensor` event and holds information such as the sensor's type, the time-stamp, accuracy and of course the sensor's `data`.
SensorEventCallback	Used for receiving sensor additional information frames.
SensorEventListener	Used for receiving notifications from the SensorManager when there is new sensor data.
SensorEventListener2	Used for receiving a notification when a flush() has been successfully completed.
SensorListener	This interface was deprecated in API level 3. Use `SensorEventListener` instead.
SensorManager	SensorManager lets you access the device's `sensors`.
SensorManager.DynamicSensorCallback	Used for receiving notifications from the SensorManager when dynamic sensors are connected or disconnected.
SentenceSuggestionsInfo	This class contains a metadata of suggestions returned from a text service (e.g.
SequenceInputStream	A `SequenceInputStream` represents the logical concatenation of other input streams.
Serializable	Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
SerializablePermission	Legacy security code; do not use.
ServerSocket	This class implements server sockets.
ServerSocketChannel	A selectable channel for stream-oriented listening sockets.
ServerSocketFactory	This class creates server sockets.
Service	A Service is an application component representing either an application's desire to perform a longer-running operation while not interacting with the user or to supply functionality for other applications to use.
ServiceCompat	Helper for accessing features in `Service` introduced after API level 4 in a backwards compatible fashion.
ServiceConfigurationError	Error thrown when something goes wrong while loading a service provider.
ServiceConnection	Interface for monitoring the state of an application service.
ServiceHealthStats	Keys for `HealthStats` returned from `HealthStats.getStats(int)` with the `PackageHealthStats.STATS_SERVICES` key.
ServiceInfo	Information you can retrieve about a particular application service.
ServiceLoader<S>	A simple service-provider loading facility.
ServiceState	Contains phone state and service related information.
ServiceTestCase<T extends Service>	This class was deprecated in API level 24. Use ServiceTestRule instead. New tests should be written using the Android Testing Support Library.
ServiceWorkerClient	Base class for clients to capture Service Worker related callbacks, see `ServiceWorkerController` for usage example.
ServiceWorkerController	Manages Service Workers used by WebView.
ServiceWorkerWebSettings	Manages settings state for all Service Workers.
Set<E>	A collection that contains no duplicate elements.
SettingInjectorService	Dynamically specifies the enabled status of a preference injected into the list of app settings displayed by the system settings app For use only by apps that are included in the system image, for preferences that affect multiple apps.
Settings	The Settings provider contains global system-level device preferences.
Settings	Provides various preferences affecting Leanback runtime behavior.
Settings.Global	Global system settings, containing preferences that always apply identically to all defined users.
Settings.NameValueTable	Common base for tables of name/value settings.
Settings.Secure	Secure system settings, containing system preferences that applications can read but are not allowed to write.
Settings.SettingNotFoundException
Settings.System	System settings, containing miscellaneous system preferences.
Shader	Shader is the based class for objects that return horizontal spans of colors during drawing.
Shader.TileMode
ShadowOverlayContainer	Provides an SDK version-independent wrapper to support shadows, color overlays, and rounded corners.
ShadowOverlayHelper	ShadowOverlayHelper is a helper class for shadow, overlay color and rounded corner.
ShadowOverlayHelper.Builder	Builder for creating ShadowOverlayHelper.
ShadowOverlayHelper.Options	Option values for ShadowOverlayContainer.
Shape	Defines a generic graphical "shape." Any Shape can be drawn to a Canvas with its own draw() method, but more graphical control is available if you instead pass it to a `ShapeDrawable`.
ShapeDrawable	A Drawable object that draws primitive shapes.
ShapeDrawable.ShaderFactory	Base class defines a factory object that is called each time the drawable is resized (has a new width or height).
ShareActionProvider	Provides a share action, which is suitable for an activity's app bar.
ShareActionProvider	This is a provider for a share action.
ShareActionProvider.OnShareTargetSelectedListener	Listener for the event of selecting a share target.
ShareActionProvider.OnShareTargetSelectedListener	Listener for the event of selecting a share target.
ShareCompat	Extra helper functionality for sharing data between activities.
ShareCompat.IntentBuilder	IntentBuilder is a helper for constructing `ACTION_SEND` and `ACTION_SEND_MULTIPLE` sharing intents and starting activities to share content.
ShareCompat.IntentReader	IntentReader is a helper for reading the data contained within a sharing (ACTION_SEND) Intent.
SharedElementCallback	Listener provided in `setEnterSharedElementCallback(SharedElementCallback)` and `setExitSharedElementCallback(SharedElementCallback)` as well as `setEnterSharedElementCallback(SharedElementCallback)` and `setExitSharedElementCallback(SharedElementCallback)` to monitor the Shared element transitions.
SharedElementCallback	Listener provided in `setEnterSharedElementCallback(SharedElementCallback)` and `setExitSharedElementCallback(SharedElementCallback)` to monitor the Activity transitions.
SharedElementCallback.OnSharedElementsReadyListener	Listener to be called after `onSharedElementsArrived(List, List, OnSharedElementsReadyListener)` when the shared elements are ready to be hidden in the source Activity and shown in the destination Activity.
SharedPreferences	Interface for accessing and modifying preference data returned by `getSharedPreferences(String, int)`.
SharedPreferences.Editor	Interface used for modifying values in a `SharedPreferences` object.
SharedPreferences.OnSharedPreferenceChangeListener	Interface definition for a callback to be invoked when a shared preference is changed.
SharedPreferencesBackupHelper	A helper class that can be used in conjunction with `BackupAgentHelper` to manage the backup of `SharedPreferences`.
SharedPreferencesCompat
SharedPreferencesCompat.EditorCompat
Short	The `Short` class wraps a value of primitive type `short` in an object.
Short2	Class for exposing the native RenderScript Short2 type back to the Android system.
Short2	Class for exposing the native RenderScript Short2 type back to the Android system.
Short3	Vector version of the basic short type.
Short3	Class for exposing the native RenderScript short3 type back to the Android system.
Short4	Vector version of the basic short type.
Short4	Class for exposing the native RenderScript short4 type back to the Android system.
ShortBuffer	A short buffer.
ShortBufferException	This exception is thrown when an output buffer provided by the user is too short to hold the operation result.
SidePropagation	A `TransitionPropagation` that propagates based on the distance to the side and, orthogonally, the distance to epicenter.
SignalStrength	Contains phone signal strength related information.
Signature	Opaque, immutable representation of a signing certificate associated with an application package.
Signature	The Signature class is used to provide applications the functionality of a digital signature algorithm.
SignatureException	This is the generic Signature exception.
SignatureSpi	This class defines the Service Provider Interface (SPI) for the `Signature` class, which is used to provide the functionality of a digital signature algorithm.
SignedObject	SignedObject is a class for the purpose of creating authentic runtime objects whose integrity cannot be compromised without being detected.
Signer	This class was deprecated in API level 1. This class is no longer used. Its functionality has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
SimpleAdapter	An easy adapter to map static data to views defined in an XML file.
SimpleAdapter.ViewBinder	This class can be used by external clients of SimpleAdapter to bind values to views.
SimpleArrayMap<K, V>	Base implementation of `ArrayMap` that doesn't include any standard Java container API interoperability.
SimpleCursorAdapter	Static library support version of the framework's `SimpleCursorAdapter`.
SimpleCursorAdapter	An easy adapter to map columns from a cursor to TextViews or ImageViews defined in an XML file.
SimpleCursorAdapter.CursorToStringConverter	This class can be used by external clients of SimpleCursorAdapter to define how the Cursor should be converted to a String.
SimpleCursorAdapter.CursorToStringConverter	This class can be used by external clients of SimpleCursorAdapter to define how the Cursor should be converted to a String.
SimpleCursorAdapter.ViewBinder	This class can be used by external clients of SimpleCursorAdapter to bind values fom the Cursor to views.
SimpleCursorAdapter.ViewBinder	This class can be used by external clients of SimpleCursorAdapter to bind values fom the Cursor to views.
SimpleCursorTreeAdapter	An easy adapter to map columns from a cursor to TextViews or ImageViews defined in an XML file.
SimpleCursorTreeAdapter.ViewBinder	This class can be used by external clients of SimpleCursorTreeAdapter to bind values from the Cursor to views.
SimpleDateFormat	[icu enhancement] ICU's replacement for `SimpleDateFormat`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
SimpleDateFormat	`SimpleDateFormat` is a concrete class for formatting and parsing dates in a locale-sensitive manner.
SimpleExpandableListAdapter	An easy adapter to map static data to group and child views defined in an XML file.
SimpleFormatter	Print a brief summary of the `LogRecord` in a human readable format.
SimpleItemAnimator	A wrapper class for ItemAnimator that records View bounds and decides whether it should run move, change, add or remove animations.
SimpleTimeZone	`SimpleTimeZone` is a concrete subclass of `TimeZone` that represents a time zone for use with a Gregorian calendar.
SingleLaunchActivityTestCase<T extends Activity>	This class was deprecated in API level 24. Use ActivityTestRule instead. New tests should be written using the Android Testing Support Library.
SingleLineTransformationMethod	This transformation method causes any newline characters (\n) to be displayed as spaces instead of causing line breaks, and causes carriage return characters (\r) to have no appearance.
SinglePresenterSelector	A `PresenterSelector` that always returns the same `Presenter`.
SipAudioCall	Handles an Internet audio call over SIP.
SipAudioCall.Listener	Listener for events relating to a SIP call, such as when a call is being recieved ("on ringing") or a call is outgoing ("on calling").
SipErrorCode	Defines error codes returned during SIP actions.
SipException	Indicates a general SIP-related exception.
SipManager	Provides APIs for SIP tasks, such as initiating SIP connections, and provides access to related SIP services.
SipProfile	Defines a SIP profile, including a SIP account, domain and server information.
SipProfile.Builder	Helper class for creating a `SipProfile`.
SipRegistrationListener	Listener for SIP registration events.
SipSession	Represents a SIP session that is associated with a SIP dialog or a standalone transaction not within a dialog.
SipSession.Listener	Listener for events relating to a SIP session, such as when a session is being registered ("on registering") or a call is outgoing ("on calling").
SipSession.State	Defines SIP session states, such as "registering", "outgoing call", and "in call".
Size	Denotes that the annotated element should have a given size or length.
Size	Immutable class for describing width and height dimensions in pixels.
SizeF	Immutable class for describing width and height dimensions in some arbitrary unit.
Slide	This transition tracks changes to the visibility of target views in the start and end scenes and moves views in or out from one of the edges of the scene.
SlidingDrawer	This class was deprecated in API level 17. This class is not supported anymore. It is recommended you base your own implementation on the source code for the Android Open Source Project if you must use it in your application.
SlidingDrawer.OnDrawerCloseListener	Callback invoked when the drawer is closed.
SlidingDrawer.OnDrawerOpenListener	Callback invoked when the drawer is opened.
SlidingDrawer.OnDrawerScrollListener	Callback invoked when the drawer is scrolled.
SlidingPaneLayout	SlidingPaneLayout provides a horizontal, multi-pane layout for use at the top level of a UI.
SlidingPaneLayout.LayoutParams
SlidingPaneLayout.PanelSlideListener	Listener for monitoring events about sliding panes.
SlidingPaneLayout.SimplePanelSlideListener	No-op stubs for `SlidingPaneLayout.PanelSlideListener`.
SmallTest	This @interface was deprecated in API level 24. Use SmallTest instead. New tests should be written using the Android Testing Support Library.
Smoke	This @interface was deprecated in API level 24. New tests should be written using the Android Testing Support Library.
SmsManager	Manages SMS operations such as sending data, text, and pdu SMS messages.
SmsManager	This class was deprecated in API level 4. Replaced by android.telephony.SmsManager that supports both GSM and CDMA.
SmsMessage	A Short Message Service message.
SmsMessage	This class was deprecated in API level 4. Replaced by android.telephony.SmsMessage that supports both GSM and CDMA.
SmsMessage.MessageClass	SMS Class enumeration.
SmsMessage.MessageClass	This enum was deprecated in API level 4. Use android.telephony.SmsMessage.
SmsMessage.SubmitPdu
SmsMessage.SubmitPdu	This class was deprecated in API level 4. Use android.telephony.SmsMessage.
Snackbar	Snackbars provide lightweight feedback about an operation.
Snackbar.Callback	Callback class for `Snackbar` instances.
SNIHostName	Instances of this class represent a server name of type `host_name` in a Server Name Indication (SNI) extension.
SNIMatcher	Instances of this class represent a matcher that performs match operations on an `SNIServerName` instance.
SNIServerName	Instances of this class represent a server name in a Server Name Indication (SNI) extension.
Socket	This class implements client sockets (also called just "sockets").
SocketAddress	This class represents a Socket Address with no protocol attachment.
SocketChannel	A selectable channel for stream-oriented connecting sockets.
SocketException	Thrown to indicate that there is an error creating or accessing a Socket.
SocketFactory	This class creates sockets.
SocketFactory	This interface was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
SocketHandler	Simple network logging `Handler`.
SocketImpl	The abstract class `SocketImpl` is a common superclass of all classes that actually implement sockets.
SocketImplFactory	This interface defines a factory for socket implementations.
SocketOption<T>	A socket option associated with a socket.
SocketOptions	Interface of methods to get/set socket options.
SocketPermission	Legacy security code; do not use.
SocketTimeoutException	Signals that a timeout has occurred on a socket read or accept.
SoftReference<T>	Soft reference objects, which are cleared at the discretion of the garbage collector in response to memory demand.
SortedList<T>	A Sorted list implementation that can keep items in order and also notify for changes in the list such that it can be bound to a `RecyclerView.Adapter`.
SortedList.BatchedCallback<T2>	A callback implementation that can batch notify events dispatched by the SortedList.
SortedList.Callback<T2>	The class that controls the behavior of the `SortedList`.
SortedListAdapterCallback<T2>	A `SortedList.Callback` implementation that can bind a `SortedList` to a `RecyclerView.Adapter`.
SortedMap<K, V>	A `Map` that further provides a total ordering on its keys.
SortedSet<E>	A `Set` that further provides a total ordering on its elements.
SoundEffectConstants	Constants to be used to play sound effects via `playSoundEffect(int)`
SoundPool	The SoundPool class manages and plays audio resources for applications.
SoundPool.Builder	Builder class for `SoundPool` objects.
SoundPool.OnLoadCompleteListener
Source	An object that implements this interface contains the information needed to act as source input (XML source or transformation instructions).
SourceLocator	This interface is primarily for the purposes of reporting where an error occurred in the XML source or transformation instructions.
Space	Space is a lightweight `View` subclass that may be used to create gaps between components in general purpose layouts.
Space	This class is deprecated. Use `Space` instead.
Space	Space is a lightweight View subclass that may be used to create gaps between components in general purpose layouts.
Spannable	This is the interface for text to which markup objects can be attached and detached.
Spannable.Factory	Factory used by TextView to create new Spannables.
SpannableString	This is the class for text whose content is immutable but to which markup objects can be attached and detached.
SpannableStringBuilder	This is the class for text whose content and markup can both be changed.
Spanned	This is the interface for text that has markup objects attached to ranges of it.
SpannedString	This is the class for text whose content and markup are immutable.
SpanWatcher	When an object of this type is attached to a Spannable, its methods will be called to notify it that other markup objects have been added, changed, or removed.
SparseArray<E>	SparseArrays map integers to Objects.
SparseArrayCompat<E>	A copy of the current platform (currently `KITKAT` version of `SparseArray`; provides a removeAt() method and other things.
SparseArrayObjectAdapter	An `ObjectAdapter` implemented with a `SparseArray`.
SparseBooleanArray	SparseBooleanArrays map integers to booleans.
SparseIntArray	SparseIntArrays map integers to integers.
SparseLongArray	SparseLongArrays map integers to longs.
SpeechOrbView	A subclass of `SearchOrbView` that visualizes the state of an ongoing speech recognition.
SpeechRecognitionCallback	Interface for receiving notification that speech recognition should be initiated.
SpeechRecognizer	This class provides access to the speech recognition service.
SpellCheckerInfo	This class is used to specify meta information of a spell checker.
SpellCheckerService	SpellCheckerService provides an abstract base class for a spell checker.
SpellCheckerService.Session	This abstract class should be overridden by a concrete implementation of a spell checker.
SpellCheckerSession	The SpellCheckerSession interface provides the per client functionality of SpellCheckerService.
SpellCheckerSession.SpellCheckerSessionListener	Callback for getting results from text services
SpellCheckerSubtype	This class is used to specify meta information of a subtype contained in a spell checker.
Spinner	A view that displays one child at a time and lets the user pick among them.
SpinnerAdapter	Extended `Adapter` that is the bridge between a `Spinner` and its data.
Spliterator<T>	An object for traversing and partitioning elements of a source.
Spliterator.OfDouble	A Spliterator specialized for `double` values.
Spliterator.OfInt	A Spliterator specialized for `int` values.
Spliterator.OfLong	A Spliterator specialized for `long` values.
Spliterator.OfPrimitive<T, T_CONS, T_SPLITR extends OfPrimitive<T, T_CONS, T_SPLITR>>	A Spliterator specialized for primitive values.
Spliterators	Static classes and methods for operating on or creating instances of `Spliterator` and its primitive specializations `Spliterator.OfInt`, `Spliterator.OfLong`, and `Spliterator.OfDouble`.
Spliterators.AbstractDoubleSpliterator	An abstract `Spliterator.OfDouble` that implements `trySplit` to permit limited parallelism.
Spliterators.AbstractIntSpliterator	An abstract `Spliterator.OfInt` that implements `trySplit` to permit limited parallelism.
Spliterators.AbstractLongSpliterator	An abstract `Spliterator.OfLong` that implements `trySplit` to permit limited parallelism.
Spliterators.AbstractSpliterator<T>	An abstract `Spliterator` that implements `trySplit` to permit limited parallelism.
SplittableRandom	A generator of uniform pseudorandom values applicable for use in (among other contexts) isolated parallel computations that may generate subtasks.
SQLClientInfoException	The subclass of `SQLException` is thrown when one or more client info properties could not be set on a `Connection`.
SQLData	The interface used for the custom mapping of an SQL user-defined type (UDT) to a class in the Java programming language.
SQLDataException	The subclass of `SQLException` thrown when the SQLState class value is '22', or under vendor-specified conditions.
SQLException	An exception that indicates there was an error with SQL parsing or execution.
SQLException	An exception that provides information on a database access error or other errors.
SQLFeatureNotSupportedException	The subclass of `SQLException` thrown when the SQLState class value is '0A' ( the value is 'zero' A).
SQLInput	An input stream that contains a stream of values representing an instance of an SQL structured type or an SQL distinct type.
SQLIntegrityConstraintViolationException	The subclass of `SQLException` thrown when the SQLState class value is '23', or under vendor-specified conditions.
SQLInvalidAuthorizationSpecException	The subclass of `SQLException` thrown when the SQLState class value is '28', or under vendor-specified conditions.
SQLiteAbortException	An exception that indicates that the SQLite program was aborted.
SQLiteAccessPermException	This exception class is used when sqlite can't access the database file due to lack of permissions on the file.
SQLiteBindOrColumnIndexOutOfRangeException	Thrown if the the bind or column parameter index is out of range
SQLiteBlobTooBigException
SQLiteCantOpenDatabaseException
SQLiteClosable	An object created from a SQLiteDatabase that can be closed.
SQLiteConstraintException	An exception that indicates that an integrity constraint was violated.
SQLiteCursor	A Cursor implementation that exposes results from a query on a `SQLiteDatabase`.
SQLiteCursorDriver	A driver for SQLiteCursors that is used to create them and gets notified by the cursors it creates on significant events in their lifetimes.
SQLiteDatabase	Exposes methods to manage a SQLite database.
SQLiteDatabase.CursorFactory	Used to allow returning sub-classes of `Cursor` when calling query.
SQLiteDatabaseCorruptException	An exception that indicates that the SQLite database file is corrupt.
SQLiteDatabaseLockedException	Thrown if the database engine was unable to acquire the database locks it needs to do its job.
SQLiteDatatypeMismatchException
SQLiteDiskIOException	An exception that indicates that an IO error occured while accessing the SQLite database file.
SQLiteDoneException	An exception that indicates that the SQLite program is done.
SQLiteException	A SQLite exception that indicates there was an error with SQL parsing or execution.
SQLiteFullException	An exception that indicates that the SQLite database is full.
SQLiteMisuseException	This error can occur if the application creates a SQLiteStatement object and allows multiple threads in the application use it at the same time.
SQLiteOpenHelper	A helper class to manage database creation and version management.
SQLiteOutOfMemoryException
SQLiteProgram	A base class for compiled SQLite programs.
SQLiteQuery	Represents a query that reads the resulting rows into a `SQLiteQuery`.
SQLiteQueryBuilder	This is a convience class that helps build SQL queries to be sent to `SQLiteDatabase` objects.
SQLiteReadOnlyDatabaseException
SQLiteStatement	Represents a statement that can be executed against a database.
SQLiteTableLockedException
SQLiteTransactionListener	A listener for transaction events.
SQLNonTransientConnectionException	The subclass of `SQLException` thrown for the SQLState class value '08', or under vendor-specified conditions.
SQLNonTransientException	The subclass of `SQLException` thrown when an instance where a retry of the same operation would fail unless the cause of the `SQLException` is corrected.
SQLOutput	The output stream for writing the attributes of a user-defined type back to the database.
SQLPermission	Legacy security code; do not use.
SQLRecoverableException	The subclass of `SQLException` thrown in situations where a previously failed operation might be able to succeed if the application performs some recovery steps and retries the entire transaction or in the case of a distributed transaction, the transaction branch.
SQLSyntaxErrorException	The subclass of `SQLException` thrown when the SQLState class value is '42', or under vendor-specified conditions.
SQLTimeoutException	The subclass of `SQLException` thrown when the timeout specified by `Statement` has expired.
SQLTransactionRollbackException	The subclass of `SQLException` thrown when the SQLState class value is '40', or under vendor-specified conditions.
SQLTransientConnectionException	The subclass of `SQLException` for the SQLState class value '08', or under vendor-specified conditions.
SQLTransientException	The subclass of `SQLException` is thrown in situations where a previoulsy failed operation might be able to succeed when the operation is retried without any intervention by application-level functionality.
SQLWarning	An exception that provides information on database access warnings.
SQLXML	The mapping in the JavaTM programming language for the SQL XML type.
SslCertificate	SSL certificate info (certificate details) class
SslCertificate.DName	A distinguished name helper class: a 3-tuple of: the most specific common name (CN) the most specific organization (O) the most specific organizational unit (OU)
SSLCertificateSocketFactory	SSLSocketFactory implementation with several extra features: Timeout specification for SSL handshake operations Hostname verification in most cases (see WARNINGs below) Optional SSL session caching with `SSLSessionCache` Optionally bypass all SSL certificate checks The handshake timeout does not apply to actual TCP socket connection.
SSLContext	Instances of this class represent a secure socket protocol implementation which acts as a factory for secure socket factories or `SSLEngine`s.
SSLContextSpi	This class defines the Service Provider Interface (SPI) for the `SSLContext` class.
SSLEngine	A class which enables secure communications using protocols such as the Secure Sockets Layer (SSL) or IETF RFC 2246 "Transport Layer Security" (TLS) protocols, but is transport independent.
SSLEngineResult	An encapsulation of the result state produced by `SSLEngine` I/O calls.
SSLEngineResult.HandshakeStatus	An `SSLEngineResult` enum describing the current handshaking state of this `SSLEngine`.
SSLEngineResult.Status	An `SSLEngineResult` enum describing the overall result of the `SSLEngine` operation.
SslError	This class represents a set of one or more SSL errors and the associated SSL certificate.
SslErrorHandler	Represents a request for handling an SSL error.
SSLException	Indicates some kind of error detected by an SSL subsystem.
SSLHandshakeException	Indicates that the client and server could not negotiate the desired level of security.
SSLKeyException	Reports a bad SSL key.
SSLParameters	Encapsulates parameters for an SSL/TLS connection.
SSLPeerUnverifiedException	Indicates that the peer's identity has not been verified.
SSLPermission	Legacy security code; do not use.
SSLProtocolException	Reports an error in the operation of the SSL protocol.
SSLServerSocket	This class extends `ServerSocket`s and provides secure server sockets using protocols such as the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols.
SSLServerSocketFactory	`SSLServerSocketFactory`s create `SSLServerSocket`s.
SSLSession	In SSL, sessions are used to describe an ongoing relationship between two entities.
SSLSessionBindingEvent	This event is propagated to a SSLSessionBindingListener.
SSLSessionBindingListener	This interface is implemented by objects which want to know when they are being bound or unbound from a SSLSession.
SSLSessionCache	File-based cache of established SSL sessions.
SSLSessionContext	A `SSLSessionContext` represents a set of `SSLSession`s associated with a single entity.
SSLSocket	This class extends `Socket`s and provides secure socket using protocols such as the "Secure Sockets Layer" (SSL) or IETF "Transport Layer Security" (TLS) protocols.
SSLSocketFactory	`SSLSocketFactory`s create `SSLSocket`s.
SSLSocketFactory	This class was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
Stack<E>	The `Stack` class represents a last-in-first-out (LIFO) stack of objects.
StackOverflowError	Thrown when a stack overflow occurs because an application recurses too deeply.
StackTraceElement	An element in a stack trace, as returned by `getStackTrace()`.
StackView
StaggeredGridLayoutManager	A LayoutManager that lays out children in a staggered grid formation.
StaggeredGridLayoutManager.LayoutParams	LayoutParams used by StaggeredGridLayoutManager.
StaleDataException	This exception is thrown when a Cursor contains stale data and must be requeried before being used again.
StampedLock	A capability-based lock with three modes for controlling read/write access.
StandardCharsets	Constant definitions for the standard `Charsets`.
StandardConstants	Standard constants definitions
StandardProtocolFamily	Defines the standard families of communication protocols.
StandardSocketOptions	Defines the standard socket options.
StartElementListener	Listens for the beginning of elements.
StateListAnimator	Lets you define a number of Animators that will run on the attached View depending on the View's drawable state.
StateListDrawable	Lets you assign a number of graphic images to a single Drawable and swap out the visible item by a string ID value.
Statement	The object used for executing a static SQL statement and returning the results it produces.
StatementEvent	A `StatementEvent` is sent to all `StatementEventListener`s which were registered with a `PooledConnection`.
StatementEventListener	An object that registers to be notified of events that occur on PreparedStatements that are in the Statement pool.
StateSet	State sets are arrays of positive ints where each element represents the state of a `View` (e.g.
StatFs	Retrieve overall information about the space on a filesystem.
StaticLayout	StaticLayout is a Layout for text that will not be edited after it is laid out.
StaticLayout.Builder	Builder for static layouts.
StatusBarNotification	Class encapsulating a Notification.
StatusHints	Contains status label and icon displayed in the in-call UI.
StorageManager	StorageManager is the interface to the systems storage service.
StorageVolume	Information about a shared/external storage volume for a specific user.
Stream<T>	A sequence of elements supporting sequential and parallel aggregate operations.
Stream.Builder<T>	A mutable builder for a `Stream`.
StreamConfigurationMap	Immutable class to store the available stream `configurations` to set up `Surfaces` for creating a `capture session` with `createCaptureSession(List, CameraCaptureSession.StateCallback, Handler)`.
StreamCorruptedException	Thrown when control information that was read from an object stream violates internal consistency checks.
StreamHandler	Stream based logging `Handler`.
StreamResult	Acts as an holder for a transformation result, which may be XML, plain Text, HTML, or some other form of markup.
StreamSource	Acts as an holder for a transformation Source in the form of a stream of XML markup.
StreamSupport	Low-level utility methods for creating and manipulating streams.
StreamTokenizer	The `StreamTokenizer` class takes an input stream and parses it into "tokens", allowing the tokens to be read one at a time.
StrictHostnameVerifier	This class was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
StrictMath	The class `StrictMath` contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
StrictMode	StrictMode is a developer tool which detects things you might be doing by accident and brings them to your attention so you can fix them.
StrictMode.ThreadPolicy	`StrictMode` policy applied to a certain thread.
StrictMode.ThreadPolicy.Builder	Creates `StrictMode.ThreadPolicy` instances.
StrictMode.VmPolicy	`StrictMode` policy applied to all threads in the virtual machine's process.
StrictMode.VmPolicy.Builder	Creates `StrictMode.VmPolicy` instances.
StrikethroughSpan
String	The `String` class represents character strings.
StringBuffer	A thread-safe, mutable sequence of characters.
StringBufferInputStream	This class was deprecated in API level 1. This class does not properly convert characters into bytes. As of JDK 1.1, the preferred way to create a stream from a string is via the `StringReader` class.
StringBuilder	A mutable sequence of characters.
StringBuilderPrinter	Implementation of a `Printer` that sends its output to a `StringBuilder`.
StringCharacterIterator	`StringCharacterIterator` implements the `CharacterIterator` protocol for a `String`.
StringDef	Denotes that the annotated String element, represents a logical type and that its value should be one of the explicitly named constants.
StringIndexOutOfBoundsException	Thrown by `String` methods to indicate that an index is either negative or greater than the size of the string.
StringJoiner	`StringJoiner` is used to construct a sequence of characters separated by a delimiter and optionally starting with a supplied prefix and ending with a supplied suffix.
StringPrepParseException	Exception that signals an error has occurred while parsing the input to StringPrep or IDNA.
StringReader	A character stream whose source is a string.
StringRes	Denotes that an integer parameter, field or method return value is expected to be a String resource reference (e.g.
StringSearch	`StringSearch` is a `SearchIterator` that provides language-sensitive text searching based on the comparison rules defined in a `RuleBasedCollator` object.
StringTokenizer	The string tokenizer class allows an application to break a string into tokens.
StringWriter	A character stream that collects its output in a string buffer, which can then be used to construct a string.
Struct	The standard mapping in the Java programming language for an SQL structured type.
StructPollfd	Used as an in/out parameter to `poll(StructPollfd[], int)`.
StructStat	File information returned by `fstat(FileDescriptor)`, `lstat(String)`, and `stat(String)`.
StructStatVfs	File information returned by `fstatvfs(FileDescriptor)` and `statvfs(String)`.
StructUtsname	Information returned by `uname()`.
StyleableRes	Denotes that an integer parameter, field or method return value is expected to be a styleable resource reference (e.g.
StyleRes	Denotes that an integer parameter, field or method return value is expected to be a style resource reference (e.g.
StyleSpan	Describes a style in a span.
Subject	A `Subject` represents a grouping of related information for a single entity, such as a person.
SubjectDomainCombiner	Legacy security code; do not use.
SubMenu	Subclass of `Menu` for sub menus.
SubscriptionInfo	A Parcelable class for Subscription Information.
SubscriptionManager	SubscriptionManager is the application interface to SubscriptionController and provides information about the current Telephony Subscriptions.
SubscriptionManager.OnSubscriptionsChangedListener	A listener class for monitoring changes to `SubscriptionInfo` records.
SubscriptSpan
SuggestionsInfo	This class contains a metadata of suggestions from the text service
SuggestionSpan	Holds suggestion candidates for the text enclosed in this span.
SumPathEffect
SuperscriptSpan
SupplicantState	From `defs.h` in `wpa_supplicant`.
Supplier<T>	Represents a supplier of results.
Suppress	This @interface was deprecated in API level 24. Use Suppress instead. New tests should be written using the Android Testing Support Library.
SuppressLint	Indicates that Lint should ignore the specified warnings for the annotated element.
SuppressWarnings	Indicates that the named compiler warnings should be suppressed in the annotated element (and in all program elements contained in the annotated element).
Surface	Handle onto a raw buffer that is being managed by the screen compositor.
Surface.OutOfResourcesException	Exception thrown when a Canvas couldn't be locked with `lockCanvas(Rect)`, or when a SurfaceTexture could not successfully be allocated.
SurfaceHolder	Abstract interface to someone holding a display surface.
SurfaceHolder.BadSurfaceTypeException	Exception that is thrown from `lockCanvas()` when called on a Surface whose type is SURFACE_TYPE_PUSH_BUFFERS.
SurfaceHolder.Callback	A client may implement this interface to receive information about changes to the surface.
SurfaceHolder.Callback2	Additional callbacks that can be received for `SurfaceHolder.Callback`.
SurfaceTexture	Captures frames from an image stream as an OpenGL ES texture.
SurfaceTexture.OnFrameAvailableListener	Callback interface for being notified that a new stream frame is available.
SurfaceTexture.OutOfResourcesException	This class was deprecated in API level 19. No longer thrown. `Surface.OutOfResourcesException` is used instead.
SurfaceView	Provides a dedicated drawing surface embedded inside of a view hierarchy.
SweepGradient
SwipeDismissBehavior<V extends View>	An interaction behavior plugin for child views of `CoordinatorLayout` to provide support for the 'swipe-to-dismiss' gesture.
SwipeDismissBehavior.OnDismissListener	Callback interface used to notify the application that the view has been dismissed.
SwipeRefreshLayout	The SwipeRefreshLayout should be used whenever the user can refresh the contents of a view via a vertical swipe gesture.
SwipeRefreshLayout.OnRefreshListener	Classes that wish to be notified when the swipe gesture correctly triggers a refresh should implement this interface.
Switch	A Switch is a two-state toggle switch widget that can select between two options.
SwitchCompat	SwitchCompat is a version of the Switch widget which on devices back to API v7.
SwitchPreference	A `Preference` that provides a two-state toggleable option.
SwitchPreference	A `Preference` that provides a two-state toggleable option.
SwitchPreferenceCompat	A `Preference` that provides a two-state toggleable option.
SymbolTable	An interface that defines both lookup protocol and parsing of symbolic names.
SyncAdapterType	Value type that represents a SyncAdapterType.
SyncBaseInstrumentation	This class was deprecated in API level 24. Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library.
SyncContext
SyncFailedException	Signals that a sync operation has failed.
SynchronousQueue<E>	A blocking queue in which each insert operation must wait for a corresponding remove operation by another thread, and vice versa.
SyncInfo	Information about the sync operation that is currently underway.
SyncParams	Structure for common A/V sync params.
SyncRequest	Convenience class to construct sync requests.
SyncRequest.Builder	Builder class for a @link SyncRequest.
SyncResult	This class is used to communicate the results of a sync operation to the SyncManager.
SyncStateContract	The ContentProvider contract for associating data with ana data array account.
SyncStateContract.Columns
SyncStateContract.Constants
SyncStateContract.Helpers
SyncStats	Used to record various statistics about the result of a sync operation.
SyncStatusObserver
SynthesisCallback	A callback to return speech data synthesized by a text to speech engine.
SynthesisRequest	Contains data required by engines to synthesize speech.
System	The `System` class contains several useful class fields and methods.
SystemClock	Core timekeeping facilities.
SystemHealthManager	Provides access to data about how various system resources are used by applications.
SystemUpdatePolicy	A class that represents a local system update policy set by the device owner.

T

TabActivity	This class was deprecated in API level 13. New applications should use Fragments instead of this class; to continue to run on older devices, you can use the v4 support library which provides a version of the Fragment API that is compatible down to `DONUT`.
TabHost	Container for a tabbed window view.
TabHost.OnTabChangeListener	Interface definition for a callback to be invoked when tab changed
TabHost.TabContentFactory	Makes the content of a tab when it is selected.
TabHost.TabSpec	A tab has a tab indicator, content, and a tag that is used to keep track of it.
TabItem	TabItem is a special 'view' which allows you to declare tab items for a `TabLayout` within a layout.
TabLayout	TabLayout provides a horizontal layout to display tabs.
TabLayout.OnTabSelectedListener	Callback interface invoked when a tab's selection state changes.
TabLayout.Tab	A tab in this layout.
TabLayout.TabLayoutOnPageChangeListener	A `ViewPager.OnPageChangeListener` class which contains the necessary calls back to the provided `TabLayout` so that the tab position is kept in sync.
TabLayout.ViewPagerOnTabSelectedListener	A `TabLayout.OnTabSelectedListener` class which contains the necessary calls back to the provided `ViewPager` so that the tab position is kept in sync.
TableLayout	A layout that arranges its children into rows and columns.
TableLayout.LayoutParams	This set of layout parameters enforces the width of each child to be `MATCH_PARENT` and the height of each child to be `WRAP_CONTENT`, but only if the height is not specified.
TableRow	A layout that arranges its children horizontally.
TableRow.LayoutParams	Set of layout parameters used in table rows.
TabStopSpan	Represents a single tab stop on a line.
TabStopSpan.Standard	The default implementation of TabStopSpan.
TabWidget	Displays a list of tab labels representing each page in the parent's tab collection.
Tag	Represents an NFC tag that has been discovered.
TagLostException
TagTechnology	`TagTechnology` is an interface to a technology in a `Tag`.
TaiwanCalendar	`TaiwanCalendar` is a subclass of `GregorianCalendar` that numbers years since 1912.
Target	A class which allows custom selection of colors in a `Palette`'s generation.
Target	Indicates the kinds of program element to which an annotation type is applicable.
Target.Builder	Builder class for generating custom `Target` instances.
TargetApi	Indicates that Lint should treat this type as targeting a given API level, no matter what the project target is.
TaskStackBuilder	Utility class for constructing synthetic back stacks for cross-task navigation on Android 3.0 and newer.
TaskStackBuilder	Utility class for constructing synthetic back stacks for cross-task navigation on Android 3.0 and newer.
TaskStackBuilder.SupportParentable
TelecomManager	Provides access to information about active calls and registration/call-management functionality.
Telephony	The Telephony provider contains data related to phone operation, specifically SMS and MMS messages and access to the APN list, including the MMSC to use.
Telephony.BaseMmsColumns	Base columns for tables that contain MMSs.
Telephony.CanonicalAddressesColumns	Columns for the "canonical_addresses" table used by MMS and SMS.
Telephony.Carriers	Carriers class contains information about APNs, including MMSC information.
Telephony.Mms	Contains all MMS messages.
Telephony.Mms.Addr	Contains address information for an MMS message.
Telephony.Mms.Draft	Contains all MMS messages in the MMS app drafts folder.
Telephony.Mms.Inbox	Contains all MMS messages in the MMS app inbox.
Telephony.Mms.Intents	Intents class.
Telephony.Mms.Outbox	Contains all MMS messages in the MMS app outbox.
Telephony.Mms.Part	Contains message parts.
Telephony.Mms.Rate	Message send rate table.
Telephony.Mms.Sent	Contains all MMS messages in the MMS app sent folder.
Telephony.MmsSms	Contains all MMS and SMS messages.
Telephony.MmsSms.PendingMessages	Contains pending messages info.
Telephony.Sms	Contains all text-based SMS messages.
Telephony.Sms.Conversations	Contains all sent text-based SMS messages in the SMS app.
Telephony.Sms.Draft	Contains all sent text-based SMS messages in the SMS app.
Telephony.Sms.Inbox	Contains all text-based SMS messages in the SMS app inbox.
Telephony.Sms.Intents	Contains constants for SMS related Intents that are broadcast.
Telephony.Sms.Outbox	Contains all pending outgoing text-based SMS messages.
Telephony.Sms.Sent	Contains all sent text-based SMS messages in the SMS app.
Telephony.TextBasedSmsColumns	Base columns for tables that contain text-based SMSs.
Telephony.Threads	Helper functions for the "threads" table used by MMS and SMS.
Telephony.ThreadsColumns	Columns for the "threads" table used by MMS and SMS.
TelephonyManager	Provides access to information about the telephony services on the device.
Templates	An object that implements this interface is the runtime representation of processed transformation instructions.
TemplatesHandler	A SAX ContentHandler that may be used to process SAX parse events (parsing transformation instructions) into a Templates object.
Test	A Test can be run and collect its results.
TestCase	A test case defines the fixture to run multiple tests.
TestFailure	A `TestFailure` collects a failed test together with the caught exception.
TestListener	A Listener for test progress
TestMethod	Represents a test to be run.
TestResult	A `TestResult` collects the results of executing a test case.
TestSuite	A `TestSuite` is a `Composite` of Tests.
TestSuiteBuilder	Build suites based on a combination of included packages, excluded packages, and predicates that must be satisfied.
TestSuiteBuilder.FailedToCreateTests	A special `TestCase` used to indicate a failure during the build() step.
TestSuiteLoader	An interface to define how a test suite should be loaded.
TestSuiteProvider	Implementors will know how to get a test suite.
TestTarget	This @interface was deprecated in API level 14. Obsolete.
TestTargetClass	This @interface was deprecated in API level 14. Obsolete.
Text	The `Text` interface inherits from `CharacterData` and represents the textual content (termed character data in XML) of an `Element` or `Attr`.
TextAppearanceSpan	Sets the text color, size, style, and typeface to match a TextAppearance resource.
TextAttribute	The `TextAttribute` class defines attribute keys and attribute values used for text rendering.
TextClock	`TextClock` can display the current date and/or time as a formatted string.
TextDirectionHeuristic	Interface for objects that use a heuristic for guessing at the paragraph direction by examining text.
TextDirectionHeuristicCompat	Interface for objects that use a heuristic for guessing at the paragraph direction by examining text.
TextDirectionHeuristics	Some objects that implement `TextDirectionHeuristic`.
TextDirectionHeuristicsCompat	Some objects that implement TextDirectionHeuristic.
TextElementListener	Listens for the beginning and ending of text elements.
TextInfo	This class contains a metadata of the input of TextService
TextInputEditText	A special sub-class of `EditText` designed for use as a child of `TextInputLayout`.
TextInputLayout	Layout which wraps an `EditText` (or descendant) to show a floating label when the hint is hidden due to the user inputting text.
TextKeyListener	This is the key listener for typing normal text.
TextKeyListener.Capitalize
TextPaint	TextPaint is an extension of Paint that leaves room for some extra data used during text measuring and drawing.
TextServicesManager	System API to the overall text services, which arbitrates interaction between applications and text services.
TextSwitcher	Specialized `ViewSwitcher` that contains only children of type `TextView`.
TextToSpeech	Synthesizes speech from text for immediate playback or to create a sound file.
TextToSpeech.Engine	Constants and parameter names for controlling text-to-speech.
TextToSpeech.EngineInfo	Information about an installed text-to-speech engine.
TextToSpeech.OnInitListener	Interface definition of a callback to be invoked indicating the completion of the TextToSpeech engine initialization.
TextToSpeech.OnUtteranceCompletedListener	This interface was deprecated in API level 18. Use `UtteranceProgressListener` instead.
TextToSpeechService	Abstract base class for TTS engine implementations.
TextureView	A TextureView can be used to display a content stream.
TextureView.SurfaceTextureListener	This listener can be used to be notified when the surface texture associated with this texture view is available.
TextUtils
TextUtils.EllipsizeCallback
TextUtils.SimpleStringSplitter	A simple string splitter.
TextUtils.StringSplitter	An interface for splitting strings according to rules that are opaque to the user of this interface.
TextUtils.TruncateAt
TextUtilsCompat
TextView	Displays text to the user and optionally allows them to edit it.
TextView.BufferType
TextView.OnEditorActionListener	Interface definition for a callback to be invoked when an action is performed on the editor.
TextView.SavedState	User interface state that is stored by TextView for implementing `onSaveInstanceState()`.
TextViewCompat	Helper for accessing features in `TextView` introduced after API level 4 in a backwards compatible fashion.
TextWatcher	When an object of a type is attached to an Editable, its methods will be called when the text is changed.
ThemedSpinnerAdapter	An extension of SpinnerAdapter that is capable of inflating drop-down views against a different theme than normal views.
ThemedSpinnerAdapter	An extension of SpinnerAdapter that is capable of inflating drop-down views against a different theme than normal views.
ThemedSpinnerAdapter.Helper	A helper class which allows easy integration of `ThemedSpinnerAdapter` into existing `SpinnerAdapter`s in a backwards compatible way.
Thread	A thread is a thread of execution in a program.
Thread.State	A thread state.
Thread.UncaughtExceptionHandler	Interface for handlers invoked when a `Thread` abruptly terminates due to an uncaught exception.
ThreadDeath	An instance of `ThreadDeath` is thrown in the victim thread when the (deprecated) `stop()` method is invoked.
ThreadFactory	An object that creates new threads on demand.
ThreadGroup	A thread group represents a set of threads.
ThreadLocal<T>	This class provides thread-local variables.
ThreadLocalRandom	A random number generator isolated to the current thread.
ThreadPoolExecutor	An `ExecutorService` that executes each submitted task using one of possibly several pooled threads, normally configured using `Executors` factory methods.
ThreadPoolExecutor.AbortPolicy	A handler for rejected tasks that throws a `RejectedExecutionException`.
ThreadPoolExecutor.CallerRunsPolicy	A handler for rejected tasks that runs the rejected task directly in the calling thread of the `execute` method, unless the executor has been shut down, in which case the task is discarded.
ThreadPoolExecutor.DiscardOldestPolicy	A handler for rejected tasks that discards the oldest unhandled request and then retries `execute`, unless the executor is shut down, in which case the task is discarded.
ThreadPoolExecutor.DiscardPolicy	A handler for rejected tasks that silently discards the rejected task.
Throwable	The `Throwable` class is the superclass of all errors and exceptions in the Java language.
ThumbnailUtils	Thumbnail generation routines for media provider.
Tile	A Tile holds the state of a tile that will be displayed in Quick Settings.
TileService	A TileService provides the user a tile that can be added to Quick Settings.
Time	This class was deprecated in API level 22. Use `GregorianCalendar` instead.
Time	A thin wrapper around the `java.util.Date` class that allows the JDBC API to identify this as an SQL `TIME` value.
TimeAnimator	This class provides a simple callback mechanism to listeners that is synchronized with all other animators in the system.
TimeAnimator.TimeListener	Implementors of this interface can set themselves as update listeners to a `TimeAnimator` instance to receive callbacks on every animation frame to receive the total time since the animator started and the delta time since the last frame.
TimedMetaData	Class that embodies one timed metadata access unit, including a time stamp, and raw uninterpreted byte-array extracted directly from the container.
TimedText	Class to hold the timed text's metadata, including: The characters for rendering The rendering position for the timed text To render the timed text, applications need to do the following: Implement the `MediaPlayer.OnTimedTextListener` interface Register the `MediaPlayer.OnTimedTextListener` callback on a MediaPlayer object that is used for playback When a onTimedText callback is received, do the following: call `getText()` to get the characters for rendering call `getBounds()` to get the text rendering area/region
TimeFormatException
TimeInterpolator	A time interpolator defines the rate of change of an animation.
TimeKeyListener	For entering times in a text field.
TimeoutException	Exception thrown when a blocking operation times out.
TimePicker	A widget for selecting the time of day, in either 24-hour or AM/PM mode.
TimePicker.OnTimeChangedListener	The callback interface used to indicate the time has been adjusted.
TimePickerDialog	A dialog that prompts the user for the time of day using a `TimePicker`.
TimePickerDialog.OnTimeSetListener	The callback interface used to indicate the user is done filling in the time (e.g.
Timer	A facility for threads to schedule tasks for future execution in a background thread.
TimerStat	A TimerStat object stores a count and a time.
TimerTask	A task that can be scheduled for one-time or repeated execution by a Timer.
Timestamp	This class encapsulates information about a signed timestamp.
Timestamp	A thin wrapper around `java.util.Date` that allows the JDBC API to identify this as an SQL `TIMESTAMP` value.
TimeUnit	Measurement unit for time units.
TimeUnit	A `TimeUnit` represents time durations at a given unit of granularity and provides utility methods to convert across units, and to perform timing and delay operations in these units.
TimeUtils	A class containing utility methods related to time zones.
TimeZone	[icu enhancement] ICU's replacement for `TimeZone`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
TimeZone	`TimeZone` represents a time zone offset, and also figures out daylight savings.
TimeZone.SystemTimeZoneType	[icu] System time zone type constants used by filtering zones in `getAvailableIDs(SystemTimeZoneType, String, Integer)`
TimeZoneFormat	`TimeZoneFormat` supports time zone display name formatting and parsing.
TimeZoneFormat.GMTOffsetPatternType	Offset pattern type enum.
TimeZoneFormat.ParseOption	Parse option enum, used for specifying optional parse behavior.
TimeZoneFormat.Style	Time zone display format style enum used by format/parse APIs in `TimeZoneFormat`.
TimeZoneFormat.TimeType	Time type enum used for receiving time type (standard time, daylight time or unknown) in `TimeZoneFormat` APIs.
TimeZoneNames	`TimeZoneNames` is an abstract class representing the time zone display name data model defined by UTS#35 Unicode Locale Data Markup Language (LDML).
TimeZoneNames.NameType	Time zone display name types
TimingLogger	A utility class to help log timings splits throughout a method call.
TintableBackgroundView	Interface which allows a `View` to receive background tinting calls from `ViewCompat` when running on API v20 devices or lower.
TintableCompoundButton	Interface which allows a `CompoundButton` to receive tinting calls from `CompoundButtonCompat` when running on API v20 devices or lower.
TitleHelper	Helper for managing `TitleView`, including transitions and focus movement.
TitleView	Title view for a leanback fragment.
TitleViewAdapter	This class allows a customized widget class to implement `TitleViewAdapter.Provider` and expose `TitleViewAdapter` methods to containing fragment (e.g.
TitleViewAdapter.Provider	Interface to be implemented by a customized widget class to implement `TitleViewAdapter`.
Toast	A toast is a view containing a quick little message for the user. The toast class helps you create and show those.
ToDoubleBiFunction<T, U>	Represents a function that accepts two arguments and produces a double-valued result.
ToDoubleFunction<T>	Represents a function that produces a double-valued result.
ToggleButton	Displays checked/unchecked states as a button with a "light" indicator and by default accompanied with the text "ON" or "OFF".
ToIntBiFunction<T, U>	Represents a function that accepts two arguments and produces an int-valued result.
ToIntFunction<T>	Represents a function that produces an int-valued result.
TokenWatcher	Helper class that helps you use IBinder objects as reference counted tokens.
ToLongBiFunction<T, U>	Represents a function that accepts two arguments and produces a long-valued result.
ToLongFunction<T>	Represents a function that produces a long-valued result.
ToneGenerator	This class provides methods to play DTMF tones (ITU-T Recommendation Q.23), call supervisory tones (3GPP TS 22.001, CEPT) and proprietary tones (3GPP TS 31.111).
TonemapCurve	Immutable class for describing a `2 x M x 3` tonemap curve of floats.
Toolbar	A standard toolbar for use within application content.
Toolbar	A standard toolbar for use within application content.
Toolbar.LayoutParams	Layout information for child views of Toolbars.
Toolbar.LayoutParams	Layout information for child views of Toolbars.
Toolbar.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
Toolbar.OnMenuItemClickListener	Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
Toolbar.SavedState
TooManyListenersException	The `TooManyListenersException` Exception is used as part of the Java Event model to annotate and implement a unicast special case of a multicast Event Source.
TotalCaptureResult	The total assembled results of a single image capture from the image sensor.
Touch
TouchDelegate	Helper class to handle situations where you want a view to have a larger touch area than its actual view bounds.
TouchUtils	This class was deprecated in API level 24. Use Espresso UI testing framework instead. New tests should be written using the Android Testing Support Library.
Trace	Writes trace events to the system trace buffer.
TraceCompat	Writes trace events to the system trace buffer.
TrafficStats	Class that provides network traffic statistics.
TrafficStatsCompat	Helper for accessing features in TrafficStats introduced after API level 14 in a backwards compatible fashion.
TransactionTooLargeException	The Binder transaction failed because it was too large.
TransferQueue<E>	A `BlockingQueue` in which producers may wait for consumers to receive elements.
Transformation	Defines the transformation to be applied at one point in time of an Animation.
TransformationMethod	TextView uses TransformationMethods to do things like replacing the characters of passwords with dots, or keeping the newline characters from causing line breaks in single-line text fields.
Transformer	An instance of this abstract class can transform a source tree into a result tree.
TransformerConfigurationException	Indicates a serious configuration error.
TransformerException	This class specifies an exceptional condition that occurred during the transformation process.
TransformerFactory	A TransformerFactory instance can be used to create `Transformer` and `Templates` objects.
TransformerFactoryConfigurationError	Thrown when a problem with configuration with the Transformer Factories exists.
TransformerHandler	A TransformerHandler listens for SAX ContentHandler parse events and transforms them to a Result.
Transition	A Transition holds information about animations that will be run on its targets during a scene change.
Transition.EpicenterCallback	Class to get the epicenter of Transition.
Transition.TransitionListener	A transition listener receives notifications from a transition.
TransitionDrawable	An extension of LayerDrawables that is intended to cross-fade between the first and second layer.
TransitionInflater	This class inflates scenes and transitions from resource files.
TransitionManager	This class manages the set of transitions that fire when there is a change of `Scene`.
TransitionPropagation	Extend `TransitionPropagation` to customize start delays for Animators created in `createAnimator(ViewGroup, TransitionValues, TransitionValues)`.
TransitionRes	Denotes that an integer parameter, field or method return value is expected to be a transition resource reference.
TransitionSet	A TransitionSet is a parent of child transitions (including other TransitionSets).
TransitionValues	Data structure which holds cached values for the transition.
TranslateAnimation	An animation that controls the position of an object.
TransportController	Base interface to controlling a media transport.
TransportMediator	Helper for implementing a media transport control (with play, pause, skip, and other media actions).
TransportPerformer	Implemented by the playback side of the media system, to respond to requests to perform actions and to retrieve its current state.
TransportStateListener	A listener for playback changes that can be registered with `TransportController`.
TreeMap<K, V>	A Red-Black tree based `NavigableMap` implementation.
TreeSet<E>	A `NavigableSet` implementation based on a `TreeMap`.
TriggerEvent	This class represents a Trigger Event - the event associated with a Trigger Sensor.
TriggerEventListener	This class is the listener used to handle Trigger Sensors.
TrustAnchor	A trust anchor or most-trusted Certification Authority (CA).
TrustManager	This is the base interface for JSSE trust managers.
TrustManagerFactory	This class acts as a factory for trust managers based on a source of trust material.
TrustManagerFactorySpi	This class defines the Service Provider Interface (SPI) for the `TrustManagerFactory` class.
TtsSpan	A span that supplies additional meta-data for the associated text intended for text-to-speech engines.
TtsSpan.Builder<C extends Builder<?>>	A simple builder for TtsSpans.
TtsSpan.CardinalBuilder	A builder for TtsSpans of type `TYPE_CARDINAL`.
TtsSpan.DateBuilder	A builder for TtsSpans of type `TYPE_DATE`.
TtsSpan.DecimalBuilder	A builder for TtsSpans of type `TYPE_DECIMAL`.
TtsSpan.DigitsBuilder	A builder for TtsSpans of type `TYPE_DIGITS`.
TtsSpan.ElectronicBuilder	A builder for TtsSpans of type `TYPE_ELECTRONIC`.
TtsSpan.FractionBuilder	A builder for TtsSpans of type `TYPE_FRACTION`.
TtsSpan.MeasureBuilder	A builder for TtsSpans of type `TYPE_MEASURE`.
TtsSpan.MoneyBuilder	A builder for TtsSpans of type `TYPE_MONEY`.
TtsSpan.OrdinalBuilder	A builder for TtsSpans of type `TYPE_ORDINAL`.
TtsSpan.SemioticClassBuilder<C extends SemioticClassBuilder<?>>	A builder for TtsSpans, has setters for morphosyntactic features.
TtsSpan.TelephoneBuilder	A builder for TtsSpans of type `TYPE_TELEPHONE`.
TtsSpan.TextBuilder	A builder for TtsSpans of type `TYPE_TEXT`.
TtsSpan.TimeBuilder	A builder for TtsSpans of type `TYPE_TIME`.
TtsSpan.VerbatimBuilder	A builder for TtsSpans of type `TYPE_VERBATIM`.
TvContentRating	A class representing a TV content rating.
TvContract	The contract between the TV provider and applications.
TvContract.BaseTvColumns	Common base for the tables of TV channels/programs.
TvContract.Channels	Column definitions for the TV channels table.
TvContract.Channels.Logo	A sub-directory of a single TV channel that represents its primary logo.
TvContract.Programs	Column definitions for the TV programs table.
TvContract.Programs.Genres	Canonical genres for TV programs.
TvContract.RecordedPrograms	Column definitions for the recorded TV programs table.
TvInputInfo	This class is used to specify meta information of a TV input.
TvInputInfo.Builder	A convenience builder for creating `TvInputInfo` objects.
TvInputManager	Central system API to the overall TV input framework (TIF) architecture, which arbitrates interaction between applications and the selected TV inputs.
TvInputManager.TvInputCallback	Callback used to monitor status of the TV inputs.
TvInputService	The TvInputService class represents a TV input or source such as HDMI or built-in tuner which provides pass-through video or broadcast TV programs.
TvInputService.HardwareSession	Base class for a TV input session which represents an external device connected to a hardware TV input.
TvInputService.RecordingSession	Base class for derived classes to implement to provide a TV input recording session.
TvInputService.Session	Base class for derived classes to implement to provide a TV input session.
TvRecordingClient	The public interface object used to interact with a specific TV input service for TV program recording.
TvRecordingClient.RecordingCallback	Callback used to receive various status updates on the `TvInputService.RecordingSession`
TvTrackInfo	Encapsulates the format of tracks played in `TvInputService`.
TvTrackInfo.Builder	A builder class for creating `TvTrackInfo` objects.
TvView	Displays TV contents.
TvView.OnUnhandledInputEventListener	Interface definition for a callback to be invoked when the unhandled input event is received.
TvView.TimeShiftPositionCallback	Callback used to receive time shift position changes.
TvView.TvInputCallback	Callback used to receive various status updates on the `TvView`.
TwoLineListItem	This class was deprecated in API level 17. This class can be implemented easily by apps using a `RelativeLayout` or a `LinearLayout`.
TwoStatePreference	Common base class for preferences that have two selectable states, persist a boolean value in SharedPreferences, and may have dependent preferences that are enabled/disabled based on the current state.
TwoStatePreference	Common base class for preferences that have two selectable states, persist a boolean value in SharedPreferences, and may have dependent preferences that are enabled/disabled based on the current state.
Type	A Type describes the `Element` and dimensions used for an `Allocation` or a parallel operation.
Type	A Type describes the `Element` and dimensions used for an `Allocation` or a parallel operation.
Type	Type is the common superinterface for all types in the Java programming language.
Type.Builder	Builder class for Type.
Type.Builder	Builder class for Type.
Type.CubemapFace
Type.CubemapFace
TypeConverter<T, V>	Abstract base class used convert type T to another type V.
TypedArray	Container for an array of values that were retrieved with `obtainStyledAttributes(AttributeSet, int[], int, int)` or `obtainAttributes(AttributeSet, int[])`.
TypedValue	Container for a dynamically typed data value.
TypeEvaluator<T>	Interface for use with the `setEvaluator(TypeEvaluator)` function.
Typeface	The Typeface class specifies the typeface and intrinsic style of a font.
TypefaceSpan	Changes the typeface family of the text to which the span is attached.
TypeInfo	The `TypeInfo` interface represents a type referenced from `Element` or `Attr` nodes, specified in the schemas associated with the document.
TypeInfoProvider	This class provides access to the type information determined by `ValidatorHandler`.
TypeNotPresentException	Thrown when an application tries to access a type using a string representing the type's name, but no definition for the type with the specified name can be found.
Types	The class that defines the constants that are used to identify generic SQL types, called JDBC types.
TypeVariable<D extends GenericDeclaration>	TypeVariable is the common superinterface for type variables of kinds.

U

UCharacter	[icu enhancement] ICU's replacement for `Character`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
UCharacter.BidiPairedBracketType	Bidi Paired Bracket Type constants.
UCharacter.DecompositionType	Decomposition Type constants.
UCharacter.EastAsianWidth	East Asian Width constants.
UCharacter.GraphemeClusterBreak	Grapheme Cluster Break constants.
UCharacter.HangulSyllableType	Hangul Syllable Type constants.
UCharacter.JoiningGroup	Joining Group constants.
UCharacter.JoiningType	Joining Type constants.
UCharacter.LineBreak	Line Break constants.
UCharacter.NumericType	Numeric Type constants.
UCharacter.SentenceBreak	Sentence Break constants.
UCharacter.UnicodeBlock	[icu enhancement] ICU's replacement for `Character.UnicodeBlock`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
UCharacter.WordBreak	Word Break constants.
UCharacterCategory	Enumerated Unicode category types from the UnicodeData.txt file.
UCharacterDirection	Enumerated Unicode character linguistic direction constants.
UCharacterEnums	A container for the different 'enumerated types' used by UCharacter.
UCharacterEnums.ECharacterCategory	'Enum' for the CharacterCategory constants.
UCharacterEnums.ECharacterDirection	'Enum' for the CharacterDirection constants.
UCharacterIterator	Abstract class that defines an API for iteration on text objects.This is an interface for forward and backward iteration and random access into a text object.
UFormat	An abstract class that extends `Format` to provide additional ICU protocol, specifically, the `getLocale()` API.
UiAutomation	Class for interacting with the device's UI by simulation user actions and introspection of the screen content.
UiAutomation.AccessibilityEventFilter	Listener for filtering accessibility events.
UiAutomation.OnAccessibilityEventListener	Listener for observing the `AccessibilityEvent` stream.
UidHealthStats	Keys for `HealthStats` returned from `SystemHealthManager.takeUidSnapshot(int)`, `SystemHealthManager.takeMyUidSnapshot()`, and `SystemHealthManager.takeUidSnapshots(int[])`.
UiModeManager	This class provides access to the system uimode services.
UiThread	Denotes that the annotated method or constructor should only be called on the UI thread.
UiThreadTest	This @interface was deprecated in API level 24. Use UiThreadTest instead. New tests should be written using the Android Testing Support Library.
ULocale	[icu enhancement] ICU's replacement for `Locale`. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
ULocale.Builder	`Builder` is used to build instances of `ULocale` from values configured by the setters.
ULocale.Category	Enum for locale categories.
UnaryOperator<T>	Represents an operation on a single operand that produces a result of the same type as its operand.
UncheckedIOException	Wraps an `IOException` with an unchecked exception.
UndeclaredThrowableException	Thrown by a method invocation on a proxy instance if its invocation handler's `invoke` method throws a checked exception (a `Throwable` that is not assignable to `RuntimeException` or `Error`) that is not assignable to any of the exception types declared in the `throws` clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.
UnderlineSpan
UnicodeFilter	`UnicodeFilter` defines a protocol for selecting a subset of the full range (U+0000 to U+FFFF) of Unicode characters.
UnicodeMatcher	`UnicodeMatcher` defines a protocol for objects that can match a range of characters in a Replaceable string.
UnicodeSet	A mutable set of Unicode characters and multicharacter strings.
UnicodeSet.ComparisonStyle	Comparison style enums used by `compareTo(UnicodeSet, ComparisonStyle)`.
UnicodeSet.EntryRange	A struct-like class used for iteration through ranges, for faster iteration than by String.
UnicodeSet.SpanCondition	Argument values for whether span() and similar functions continue while the current character is contained vs.
UnicodeSetIterator	UnicodeSetIterator iterates over the contents of a UnicodeSet.
UnicodeSetSpanner	A helper class used to count, replace, and trim CharSequences based on UnicodeSet matches.
UnicodeSetSpanner.CountMethod	Options for replaceFrom and countIn to control how to treat each matched span.
UnicodeSetSpanner.TrimOption	Options for the trim() method
UnknownError	Thrown when an unknown but serious exception has occurred in the Java Virtual Machine.
UnknownFormatConversionException	Unchecked exception thrown when an unknown conversion is given.
UnknownFormatFlagsException	Unchecked exception thrown when an unknown flag is given.
UnknownHostException	Thrown to indicate that the IP address of a host could not be determined.
UnknownServiceException	Thrown to indicate that an unknown service exception has occurred.
UnmappableCharacterException	Checked exception thrown when an input character (or byte) sequence is valid but cannot be mapped to an output byte (or character) sequence.
UnrecoverableEntryException	This exception is thrown if an entry in the keystore cannot be recovered.
UnrecoverableKeyException	This exception is thrown if a key in the keystore cannot be recovered.
UnresolvedAddressException	Unchecked exception thrown when an attempt is made to invoke a network operation upon an unresolved socket address.
UnresolvedPermission	Legacy security code; do not use.
UnsatisfiedLinkError	Thrown if the Java Virtual Machine cannot find an appropriate native-language definition of a method declared `native`.
UnsupportedAddressTypeException	Unchecked exception thrown when an attempt is made to bind or connect to a socket address of a type that is not supported.
UnsupportedCallbackException	Signals that a `CallbackHandler` does not recognize a particular `Callback`.
UnsupportedCharsetException	Unchecked exception thrown when no support is available for a requested charset.
UnsupportedClassVersionError	Thrown when the Java Virtual Machine attempts to read a class file and determines that the major and minor version numbers in the file are not supported.
UnsupportedEncodingException	The Character Encoding is not supported.
UnsupportedOperationException	Thrown to indicate that the requested operation is not supported.
UnsupportedSchemeException	Exception thrown when an attempt is made to construct a MediaDrm object using a crypto scheme UUID that is not supported by the device
UpdateAppearance	The classes that affect character-level text in a way that modifies their appearance when one is added or removed must implement this interface.
UpdateLayout	The classes that affect character-level text formatting in a way that triggers a text layout update when one is added or removed must implement this interface.
UProperty	Selection constants for Unicode properties.
UProperty.NameChoice	Selector constants for UCharacter.getPropertyName() and UCharacter.getPropertyValueName().
Uri	Immutable URI reference.
URI	Represents a Uniform Resource Identifier (URI) reference.
Uri.Builder	Helper class for building or manipulating URI references.
UriMatcher	Utility class to aid in matching URIs in content providers.
UriPermission	Description of a single Uri permission grant.
URIResolver	An object that implements this interface that can be called by the processor to turn a URI used in document(), xsl:import, or xsl:include into a Source object.
URISyntaxException	Checked exception thrown to indicate that a string could not be parsed as a URI reference.
URL	Class `URL` represents a Uniform Resource Locator, a pointer to a "resource" on the World Wide Web.
URLClassLoader	This class loader is used to load classes and resources from a search path of URLs referring to both JAR files and directories.
URLConnection	The abstract class `URLConnection` is the superclass of all classes that represent a communications link between the application and a URL.
URLDecoder	Utility class for HTML form decoding.
URLEncoder	Utility class for HTML form encoding.
UrlQuerySanitizer	Sanitizes the Query portion of a URL.
UrlQuerySanitizer.IllegalCharacterValueSanitizer	Sanitize values based on which characters they contain.
UrlQuerySanitizer.ParameterValuePair	A simple tuple that holds parameter-value pairs.
UrlQuerySanitizer.ValueSanitizer	A functor used to sanitize a single query value.
URLSpan
URLStreamHandler	The abstract class `URLStreamHandler` is the common superclass for all stream protocol handlers.
URLStreamHandlerFactory	This interface defines a factory for `URL` stream protocol handlers.
URLUtil
UsageEvents	A result returned from `queryEvents(long, long)` from which to read `UsageEvents.Event` objects.
UsageEvents.Event	An event representing a state change for a component.
UsageStats	Contains usage statistics for an app package for a specific time range.
UsageStatsManager	Provides access to device usage history and statistics.
UsbAccessory	A class representing a USB accessory, which is an external hardware component that communicates with an android application over USB.
UsbConfiguration	A class representing a configuration on a `UsbDevice`.
UsbConstants	Contains constants for the USB protocol.
UsbDevice	This class represents a USB device attached to the android device with the android device acting as the USB host.
UsbDeviceConnection	This class is used for sending and receiving data and control messages to a USB device.
UsbEndpoint	A class representing an endpoint on a `UsbInterface`.
UsbInterface	A class representing an interface on a `UsbDevice`.
UsbManager	This class allows you to access the state of USB and communicate with USB devices.
UsbRequest	A class representing USB request packet.
UScript	Constants for ISO 15924 script codes, and related functions.
UScript.ScriptUsage	Script usage constants.
UserDataHandler	When associating an object to a key on a node using `Node.setUserData()` the application can provide a handler that gets called when the node the object is associated to is being cloned, imported, or renamed.
UserDictionary	A provider of user defined words for input methods to use for predictive text input.
UserDictionary.Words	Contains the user defined words.
UserHandle	Representation of a user on the device.
UserManager	Manages users and user details on a multi-user system.
UserManagerCompat	Helper for accessing features in `UserManager` introduced after API level 4 in a backwards compatible fashion.
UserNotAuthenticatedException	Indicates that a cryptographic operation could not be performed because the user has not been authenticated recently enough.
UTFDataFormatException	Signals that a malformed string in modified UTF-8 format has been read in a data input stream or by any class that implements the data input interface.
UtteranceProgressListener	Listener for events relating to the progress of an utterance through the synthesis queue.
UUID	A class that represents an immutable universally unique identifier (UUID).

V

Validator	A processor that checks an XML document against `Schema`.
ValidatorHandler	Streaming validator that works on SAX stream.
ValueAnimator	This class provides a simple timing engine for running animations which calculate animated values and set them on target objects.
ValueAnimator.AnimatorUpdateListener	Implementors of this interface can add themselves as update listeners to an `ValueAnimator` instance to receive callbacks on every animation frame, after the current frame's values have been calculated for that `ValueAnimator`.
ValueCallback<T>	A callback interface used to provide values asynchronously.
ValueIterator	Interface for enabling iteration over sets of <int, Object>, where int is the sorted integer index in ascending order, and Object its associated value.
ValueIterator.Element	The return result container of each iteration.
Vector<E>	The `Vector` class implements a growable array of objects.
VectorDrawable	This lets you create a drawable based on an XML vector graphic.
VectorDrawableCompat	For API 23 and above, this class is delegating to the framework's `VectorDrawable`.
VelocityTracker	Helper for tracking the velocity of touch events, for implementing flinging and other such gestures.
VelocityTrackerCompat	Helper for accessing features in `VelocityTracker` introduced after API level 4 in a backwards compatible fashion.
VerifyError	Thrown when the "verifier" detects that a class file, though well formed, contains some sort of internal inconsistency or security problem.
Version	This class defines the current version of JUnit
VersionInfo	Class to store version numbers of the form major.minor.milli.micro.
VerticalGridFragment	A fragment for creating leanback vertical grids.
VerticalGridPresenter	A presenter that renders objects in a `VerticalGridView`.
VerticalGridPresenter.ViewHolder	ViewHolder for the VerticalGridPresenter.
VerticalGridSupportFragment	A fragment for creating leanback vertical grids.
VerticalGridView	A `ViewGroup` that shows items in a vertically scrolling list.
Vibrator	Class that operates the vibrator on the device.
VideoProfile	Represents attributes of video calls.
VideoProfile.CameraCapabilities	Represents the camera capabilities important to a Video Telephony provider.
VideoView	Displays a video file.
View	This class represents the basic building block for user interface components.
View.AccessibilityDelegate	This class represents a delegate that can be registered in a `View` to enhance accessibility support via composition rather via inheritance.
View.BaseSavedState	Base class for derived classes that want to save and restore their own state in `onSaveInstanceState()`.
View.DragShadowBuilder	Creates an image that the system displays during the drag and drop operation.
View.MeasureSpec	A MeasureSpec encapsulates the layout requirements passed from parent to child.
View.OnApplyWindowInsetsListener	Listener for applying window insets on a view in a custom way.
View.OnAttachStateChangeListener	Interface definition for a callback to be invoked when this view is attached or detached from its window.
View.OnClickListener	Interface definition for a callback to be invoked when a view is clicked.
View.OnContextClickListener	Interface definition for a callback to be invoked when a view is context clicked.
View.OnCreateContextMenuListener	Interface definition for a callback to be invoked when the context menu for this view is being built.
View.OnDragListener	Interface definition for a callback to be invoked when a drag is being dispatched to this view.
View.OnFocusChangeListener	Interface definition for a callback to be invoked when the focus state of a view changed.
View.OnGenericMotionListener	Interface definition for a callback to be invoked when a generic motion event is dispatched to this view.
View.OnHoverListener	Interface definition for a callback to be invoked when a hover event is dispatched to this view.
View.OnKeyListener	Interface definition for a callback to be invoked when a hardware key event is dispatched to this view.
View.OnLayoutChangeListener	Interface definition for a callback to be invoked when the layout bounds of a view changes due to layout processing.
View.OnLongClickListener	Interface definition for a callback to be invoked when a view has been clicked and held.
View.OnScrollChangeListener	Interface definition for a callback to be invoked when the scroll X or Y positions of a view change.
View.OnSystemUiVisibilityChangeListener	Interface definition for a callback to be invoked when the status bar changes visibility.
View.OnTouchListener	Interface definition for a callback to be invoked when a touch event is dispatched to this view.
ViewAnimationUtils	Defines common utilities for working with View's animations.
ViewAnimator	Base class for a `FrameLayout` container that will perform animations when switching between its views.
ViewAsserts	This class was deprecated in API level 24. Use Espresso View Matchers instead. New test should be written using the Android Testing Support Library. For more information about UI testing, take the Espresso UI testing training.
ViewCompat	Helper for accessing features in `View` introduced after API level 13 in a backwards compatible fashion.
ViewCompat	Helper for accessing features in `View` introduced after API level 4 in a backwards compatible fashion.
ViewConfiguration	Contains methods to standard constants used in the UI for timeouts, sizes, and distances.
ViewConfigurationCompat	Helper for accessing features in `ViewConfiguration` introduced after API level 4 in a backwards compatible fashion.
ViewDataBinding	Base class for generated data binding classes.
ViewDebug	Various debugging/tracing tools related to `View` and the view hierarchy.
ViewDebug.CapturedViewProperty	This annotation can be used to mark fields and methods to be dumped when the view is captured.
ViewDebug.ExportedProperty	This annotation can be used to mark fields and methods to be dumped by the view server.
ViewDebug.FlagToString	Defines a mapping from a flag to a String.
ViewDebug.HierarchyTraceType	This enum was deprecated in API level 16. This enum is now unused
ViewDebug.IntToString	Defines a mapping from an int value to a String.
ViewDebug.RecyclerTraceType	This enum was deprecated in API level 16. This enum is now unused
ViewDragHelper	ViewDragHelper is a utility class for writing custom ViewGroups.
ViewDragHelper.Callback	A Callback is used as a communication channel with the ViewDragHelper back to the parent view using it.
ViewFlipper	Simple `ViewAnimator` that will animate between two or more views that have been added to it.
ViewGroup	A `ViewGroup` is a special view that can contain other views (called children.) The view group is the base class for layouts and views containers.
ViewGroup.LayoutParams	LayoutParams are used by views to tell their parents how they want to be laid out.
ViewGroup.MarginLayoutParams	Per-child layout information for layouts that support margins.
ViewGroup.OnHierarchyChangeListener	Interface definition for a callback to be invoked when the hierarchy within this view changed.
ViewGroupCompat	Helper for accessing features in `ViewGroup` introduced after API level 4 in a backwards compatible fashion.
ViewGroupOverlay	A group overlay is an extra layer that sits on top of a ViewGroup (the "host view") which is drawn after all other content in that view (including the view group's children).
ViewHolderTask	Interface for schedule task on a ViewHolder.
ViewManager	Interface to let you add and remove child views to an Activity.
ViewOutlineProvider	Interface by which a View builds its `Outline`, used for shadow casting and clipping.
ViewOverlay	An overlay is an extra layer that sits on top of a View (the "host view") which is drawn after all other content in that view (including children, if the view is a ViewGroup).
ViewPager	Layout manager that allows the user to flip left and right through pages of data.
ViewPager.DecorView	Annotation which allows marking of views to be decoration views when added to a view pager.
ViewPager.LayoutParams	Layout parameters that should be supplied for views added to a ViewPager.
ViewPager.OnAdapterChangeListener	Callback interface for responding to adapter changes.
ViewPager.OnPageChangeListener	Callback interface for responding to changing state of the selected page.
ViewPager.PageTransformer	A PageTransformer is invoked whenever a visible/attached page is scrolled.
ViewPager.SavedState	This is the persistent state that is saved by ViewPager.
ViewPager.SimpleOnPageChangeListener	Simple implementation of the `ViewPager.OnPageChangeListener` interface with stub implementations of each method.
ViewParent	Defines the responsibilities for a class that will be a parent of a View.
ViewParentCompat	Helper for accessing features in `ViewParent` introduced after API level 4 in a backwards compatible fashion.
ViewPropertyAnimator	This class enables automatic and optimized animation of select properties on View objects.
ViewPropertyAnimatorCompat
ViewPropertyAnimatorListener	An animation listener receives notifications from an animation.
ViewPropertyAnimatorListenerAdapter	This adapter class provides empty implementations of the methods from `ViewPropertyAnimatorListener`.
ViewPropertyAnimatorUpdateListener	Implementors of this interface can add themselves as update listeners to an `ViewPropertyAnimatorCompat` instance to receive callbacks on every animation frame, after the current frame's values have been calculated for that `ViewPropertyAnimatorCompat`.
ViewStructure	Container for storing additional per-view data generated by `View.onProvideStructure`.
ViewStub	A ViewStub is an invisible, zero-sized View that can be used to lazily inflate layout resources at runtime.
ViewStub.OnInflateListener	Listener used to receive a notification after a ViewStub has successfully inflated its layout resource.
ViewStubProxy	This class represents a ViewStub before and after inflation.
ViewSwitcher	`ViewAnimator` that switches between two views, and has a factory from which these views are created.
ViewSwitcher.ViewFactory	Creates views in a ViewSwitcher.
ViewTreeObserver	A view tree observer is used to register listeners that can be notified of global changes in the view tree.
ViewTreeObserver.OnDrawListener	Interface definition for a callback to be invoked when the view tree is about to be drawn.
ViewTreeObserver.OnGlobalFocusChangeListener	Interface definition for a callback to be invoked when the focus state within the view tree changes.
ViewTreeObserver.OnGlobalLayoutListener	Interface definition for a callback to be invoked when the global layout state or the visibility of views within the view tree changes.
ViewTreeObserver.OnPreDrawListener	Interface definition for a callback to be invoked when the view tree is about to be drawn.
ViewTreeObserver.OnScrollChangedListener	Interface definition for a callback to be invoked when something in the view tree has been scrolled.
ViewTreeObserver.OnTouchModeChangeListener	Interface definition for a callback to be invoked when the touch mode changes.
ViewTreeObserver.OnWindowAttachListener	Interface definition for a callback to be invoked when the view hierarchy is attached to and detached from its window.
ViewTreeObserver.OnWindowFocusChangeListener	Interface definition for a callback to be invoked when the view hierarchy's window focus state changes.
VirtualDisplay	Represents a virtual display.
VirtualDisplay.Callback	Interface for receiving information about a `VirtualDisplay`'s state changes.
Virtualizer	An audio virtualizer is a general name for an effect to spatialize audio channels.
Virtualizer.OnParameterChangeListener	The OnParameterChangeListener interface defines a method called by the Virtualizer when a parameter value has changed.
Virtualizer.Settings	The Settings class regroups all virtualizer parameters.
VirtualMachineError	Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating.
Visibility	A collection of utility methods for computing the visibility of triangle meshes.
Visibility	This transition tracks changes to the visibility of target views in the start and end scenes.
VisibilityPropagation	Base class for `TransitionPropagation`s that care about View Visibility and the center position of the View.
VisibleForTesting	Denotes that the class, method or field has its visibility relaxed, so that it is more widely visible than otherwise necessary to make code testable.
Visualizer	The Visualizer class enables application to retrieve part of the currently playing audio for visualization purpose.
Visualizer.MeasurementPeakRms	A class to store peak and RMS values.
Visualizer.OnDataCaptureListener	The OnDataCaptureListener interface defines methods called by the Visualizer to periodically update the audio visualization capture.
Voice	Characteristics and features of a Text-To-Speech Voice.
VoiceInteractionService	Top-level service of the current global voice interactor, which is providing support for hotwording, the back-end of a `VoiceInteractor`, etc.
VoiceInteractionSession	An active voice interaction session, providing a facility for the implementation to interact with the user in the voice interaction layer.
VoiceInteractionSession.AbortVoiceRequest	A request to report that the current user interaction can not be completed with voice, as per `VoiceInteractor.AbortVoiceRequest`.
VoiceInteractionSession.CommandRequest	A generic vendor-specific request, as per `VoiceInteractor.CommandRequest`.
VoiceInteractionSession.CompleteVoiceRequest	A request to simply inform the user that the voice operation has completed, as per `VoiceInteractor.CompleteVoiceRequest`.
VoiceInteractionSession.ConfirmationRequest	A request for confirmation from the user of an operation, as per `VoiceInteractor.ConfirmationRequest`.
VoiceInteractionSession.Insets	Information about where interesting parts of the input method UI appear.
VoiceInteractionSession.PickOptionRequest	A request for the user to pick from a set of option, as per `VoiceInteractor.PickOptionRequest`.
VoiceInteractionSession.Request	Base class representing a request from a voice-driver app to perform a particular voice operation with the user.
VoiceInteractionSessionService	An active voice interaction session, initiated by a `VoiceInteractionService`.
VoiceInteractor	Interface for an `Activity` to interact with the user through voice.
VoiceInteractor.AbortVoiceRequest	Reports that the current interaction can not be complete with voice, so the application will need to switch to a traditional input UI.
VoiceInteractor.CommandRequest	Execute a vendor-specific command using the trusted system VoiceInteractionService.
VoiceInteractor.CompleteVoiceRequest	Reports that the current interaction was successfully completed with voice, so the application can report the final status to the user.
VoiceInteractor.ConfirmationRequest	Confirms an operation with the user via the trusted system VoiceInteractionService.
VoiceInteractor.PickOptionRequest	Select a single option from multiple potential options with the user via the trusted system VoiceInteractionService.
VoiceInteractor.PickOptionRequest.Option	Represents a single option that the user may select using their voice.
VoiceInteractor.Prompt	A set of voice prompts to use with the voice interaction system to confirm an action, select an option, or do similar operations.
VoiceInteractor.Request	Base class for voice interaction requests that can be submitted to the interactor.
VoicemailContract	The contract between the voicemail provider and applications.
VoicemailContract.Status	Defines fields exposed through the /status path of this content provider.
VoicemailContract.Voicemails	Defines fields exposed through the /voicemail path of this content provider.
Void	The `Void` class is an uninstantiable placeholder class to hold a reference to the `Class` object representing the Java keyword void.
VolumeProvider	Handles requests to adjust or set the volume on a session.
VolumeProviderCompat	Handles requests to adjust or set the volume on a session.
VolumeProviderCompat.Callback	Listens for changes to the volume.
VpnService	VpnService is a base class for applications to extend and build their own VPN solutions.
VpnService.Builder	Helper class to create a VPN interface.
VrListenerService	A service that is bound from the system while running in virtual reality (VR) mode.

W

WakefulBroadcastReceiver	Helper for the common pattern of implementing a `BroadcastReceiver` that receives a device wakeup event and then passes the work off to a `Service`, while ensuring that the device does not go back to sleep during the transition.
WallpaperInfo	This class is used to specify meta information of a wallpaper service.
WallpaperManager	Provides access to the system wallpaper.
WallpaperService	A wallpaper service is responsible for showing a live wallpaper behind applications that would like to sit on top of it.
WallpaperService.Engine	The actual implementation of a wallpaper.
WeakHashMap<K, V>	Hash table based implementation of the `Map` interface, with weak keys.
WeakReference<T>	Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.
WebBackForwardList	This class contains the back/forward list for a WebView.
WebChromeClient
WebChromeClient.CustomViewCallback	A callback interface used by the host application to notify the current page that its custom view has been dismissed.
WebChromeClient.FileChooserParams	Parameters used in the `onShowFileChooser(WebView, ValueCallback, WebChromeClient.FileChooserParams)` method.
WebHistoryItem	A convenience class for accessing fields in an entry in the back/forward list of a WebView.
WebIconDatabase	This class was deprecated in API level 18. This class is only required when running on devices up to `JELLY_BEAN_MR2`
WebIconDatabase.IconListener	This interface was deprecated in API level 18. This interface is obsolete.
WebMessage	The Java representation of the HTML5 PostMessage event.
WebMessagePort	The Java representation of the HTML5 message ports.
WebMessagePort.WebMessageCallback	The listener for handling MessagePort events.
WebResourceError	Encapsulates information about errors occured during loading of web resources.
WebResourceRequest	Encompasses parameters to the `shouldInterceptRequest(WebView, WebResourceRequest)` method.
WebResourceResponse	Encapsulates a resource response.
WebSettings	Manages settings state for a WebView.
WebSettings.LayoutAlgorithm	Enum for controlling the layout of html.
WebSettings.PluginState	The plugin state effects how plugins are treated on a page.
WebSettings.RenderPriority
WebSettings.TextSize	This enum was deprecated in API level 14. Use `setTextZoom(int)` and `getTextZoom()` instead.
WebSettings.ZoomDensity	Enum for specifying the WebView's desired density.
WebStorage	This class is used to manage the JavaScript storage APIs provided by the `WebView`.
WebStorage.Origin	This class encapsulates information about the amount of storage currently used by an origin for the JavaScript storage APIs.
WebStorage.QuotaUpdater	This interface was deprecated in API level 19. This class is obsolete and no longer used.
WebView	A View that displays web pages.
WebView.FindListener	Interface to listen for find results.
WebView.HitTestResult
WebView.PictureListener	This interface was deprecated in API level 12. This interface is now obsolete.
WebView.VisualStateCallback	Callback interface supplied to `postVisualStateCallback(long, WebView.VisualStateCallback)` for receiving notifications about the visual state.
WebView.WebViewTransport	Transportation object for returning WebView across thread boundaries.
WebViewClient
WebViewDatabase	This class allows developers to determine whether any WebView used in the application has stored any of the following types of browsing data and to clear any such stored data for all WebViews in the application.
WebViewFragment	A fragment that displays a WebView.
WifiConfiguration	A class representing a configured Wi-Fi network, including the security configuration.
WifiConfiguration.AuthAlgorithm	Recognized IEEE 802.11 authentication algorithms.
WifiConfiguration.GroupCipher	Recognized group ciphers.
WifiConfiguration.KeyMgmt	Recognized key management schemes.
WifiConfiguration.PairwiseCipher	Recognized pairwise ciphers for WPA.
WifiConfiguration.Protocol	Recognized security protocols.
WifiConfiguration.Status	Possible status of a network configuration.
WifiEnterpriseConfig	Enterprise configuration details for Wi-Fi.
WifiEnterpriseConfig.Eap	The Extensible Authentication Protocol method used
WifiEnterpriseConfig.Phase2	The inner authentication method used
WifiInfo	Describes the state of any Wifi connection that is active or is in the process of being set up.
WifiManager	This class provides the primary API for managing all aspects of Wi-Fi connectivity.
WifiManager.MulticastLock	Allows an application to receive Wifi Multicast packets.
WifiManager.WifiLock	Allows an application to keep the Wi-Fi radio awake.
WifiManager.WpsCallback	Interface for callback invocation on a start WPS action
WifiP2pConfig	A class representing a Wi-Fi P2p configuration for setting up a connection
WifiP2pDevice	A class representing a Wi-Fi p2p device Note that the operations are not thread safe
WifiP2pDeviceList	A class representing a Wi-Fi P2p device list.
WifiP2pDnsSdServiceInfo	A class for storing Bonjour service information that is advertised over a Wi-Fi peer-to-peer setup.
WifiP2pDnsSdServiceRequest	A class for creating a Bonjour service discovery request for use with `addServiceRequest(WifiP2pManager.Channel, WifiP2pServiceRequest, WifiP2pManager.ActionListener)` and `removeServiceRequest(WifiP2pManager.Channel, WifiP2pServiceRequest, WifiP2pManager.ActionListener)`
WifiP2pGroup	A class representing a Wi-Fi P2p group.
WifiP2pInfo	A class representing connection information about a Wi-Fi p2p group
WifiP2pManager	This class provides the API for managing Wi-Fi peer-to-peer connectivity.
WifiP2pManager.ActionListener	Interface for callback invocation on an application action
WifiP2pManager.Channel	A channel that connects the application to the Wifi p2p framework.
WifiP2pManager.ChannelListener	Interface for callback invocation when framework channel is lost
WifiP2pManager.ConnectionInfoListener	Interface for callback invocation when connection info is available
WifiP2pManager.DnsSdServiceResponseListener	Interface for callback invocation when Bonjour service discovery response is received
WifiP2pManager.DnsSdTxtRecordListener	Interface for callback invocation when Bonjour TXT record is available for a service
WifiP2pManager.GroupInfoListener	Interface for callback invocation when group info is available
WifiP2pManager.PeerListListener	Interface for callback invocation when peer list is available
WifiP2pManager.ServiceResponseListener	Interface for callback invocation when service discovery response other than Upnp or Bonjour is received
WifiP2pManager.UpnpServiceResponseListener	Interface for callback invocation when upnp service discovery response is received
WifiP2pServiceInfo	A class for storing service information that is advertised over a Wi-Fi peer-to-peer setup
WifiP2pServiceRequest	A class for creating a service discovery request for use with `addServiceRequest(WifiP2pManager.Channel, WifiP2pServiceRequest, WifiP2pManager.ActionListener)` and `removeServiceRequest(WifiP2pManager.Channel, WifiP2pServiceRequest, WifiP2pManager.ActionListener)` This class is used to create service discovery request for custom vendor specific service discovery protocol `SERVICE_TYPE_VENDOR_SPECIFIC` or to search all service protocols `SERVICE_TYPE_ALL`.
WifiP2pUpnpServiceInfo	A class for storing Upnp service information that is advertised over a Wi-Fi peer-to-peer setup.
WifiP2pUpnpServiceRequest	A class for creating a Upnp service discovery request for use with `addServiceRequest(WifiP2pManager.Channel, WifiP2pServiceRequest, WifiP2pManager.ActionListener)` and `removeServiceRequest(WifiP2pManager.Channel, WifiP2pServiceRequest, WifiP2pManager.ActionListener)`
WildcardType	WildcardType represents a wildcard type expression, such as `?`, `? extends Number`, or `? super Integer`.
Window	Abstract base class for a top-level window look and behavior policy.
Window.Callback	API from a Window back to its caller.
Window.OnFrameMetricsAvailableListener	Callback for clients that want frame timing information for each frame rendered by the Window.
Window.OnRestrictedCaptionAreaChangedListener	Callback for clients that want to be aware of where caption draws content.
WindowAnimationFrameStats	This class contains window animation frame statistics.
WindowCompat	Helper for accessing features in `Window` introduced after API level 4 in a backwards compatible fashion.
WindowContentFrameStats	This class contains window content frame statistics.
WindowId	Safe identifier for a window.
WindowId.FocusObserver	Subclass for observing changes to the focus state of an `WindowId`.
WindowInsets	Describes a set of insets for window content.
WindowInsetsCompat	Describes a set of insets for window content.
WindowManager	The interface that apps use to talk to the window manager.
WindowManager.BadTokenException	Exception that is thrown when trying to add view whose `WindowManager.LayoutParams` `token` is invalid.
WindowManager.InvalidDisplayException	Exception that is thrown when calling `addView(View, ViewGroup.LayoutParams)` to a secondary display that cannot be found.
WindowManager.LayoutParams
WorkerThread	Denotes that the annotated method should only be called on a worker thread.
WorkSource	Describes the source of some work that may be done by someone else.
WpsInfo	A class representing Wi-Fi Protected Setup
Wrapper	Interface for JDBC classes which provide the ability to retrieve the delegate instance when the instance in question is in fact a proxy class.
WrapperListAdapter	List adapter that wraps another list adapter.
WrapTogetherSpan
WritableByteChannel	A channel that can write bytes.
WriteAbortedException	Signals that one of the ObjectStreamExceptions was thrown during a write operation.
Writer	Abstract class for writing to character streams.

X

X500Principal	This class represents an X.500 `Principal`.
X509Certificate	Abstract class for X.509 certificates.
X509Certificate	Abstract class for X.509 v1 certificates.
X509CertSelector	A `CertSelector` that selects `X509Certificates` that match all specified criteria.
X509CRL	Abstract class for an X.509 Certificate Revocation List (CRL).
X509CRLEntry	Abstract class for a revoked certificate in a CRL (Certificate Revocation List).
X509CRLSelector	A `CRLSelector` that selects `X509CRLs` that match all specified criteria.
X509EncodedKeySpec	This class represents the ASN.1 encoding of a public key, encoded according to the ASN.1 type `SubjectPublicKeyInfo`.
X509ExtendedKeyManager	Abstract class that provides for extension of the X509KeyManager interface.
X509ExtendedTrustManager	Extensions to the `X509TrustManager` interface to support SSL/TLS connection sensitive trust management.
X509Extension	Interface for an X.509 extension.
X509HostnameVerifier	This interface was deprecated in API level 22. Please use `openConnection()` instead. Please visit this webpage for further details.
X509KeyManager	Instances of this interface manage which X509 certificate-based key pairs are used to authenticate the local side of a secure socket.
X509TrustManager	Instance of this interface manage which X509 certificates may be used to authenticate the remote side of a secure socket.
X509TrustManagerExtensions	X509TrustManager wrapper exposing Android-added features.
Xfermode	Xfermode is the base class for objects that are called to implement custom "transfer-modes" in the drawing pipeline.
Xml	XML utility methods.
Xml.Encoding	Supported character encodings.
XMLConstants	Utility class to contain basic XML values as constants.
XMLFilter	Interface for an XML filter.
XMLFilterImpl	Base class for deriving an XML filter.
XMLFormatter	Format a LogRecord into a standard XML format.
XMLGregorianCalendar	Representation for W3C XML Schema 1.0 date/time datatypes.
XmlPullParser	XML Pull Parser is an interface that defines parsing functionality provided in XMLPULL V1 API (visit this website to learn more about API and its implementations).
XmlPullParserException	This exception is thrown to signal XML Pull Parser related faults.
XmlPullParserFactory	This class is used to create implementations of XML Pull Parser defined in XMPULL V1 API.
XMLReader	Interface for reading an XML document using callbacks.
XMLReaderAdapter	Adapt a SAX2 XMLReader as a SAX1 Parser.
XMLReaderFactory	Factory for creating an XML reader.
XmlRes	Denotes that an integer parameter, field or method return value is expected to be an XML resource reference.
XmlResourceParser	The XML parsing interface returned for an XML resource.
XmlSerializer	Define an interface to serialization of XML Infoset.
XPath	`XPath` provides access to the XPath evaluation environment and expressions.
XPathConstants	XPath constants.
XPathException	`XPathException` represents a generic XPath exception.
XPathExpression	`XPathExpression` provides access to compiled XPath expressions.
XPathExpressionException	`XPathExpressionException` represents an error in an XPath expression.
XPathFactory	An `XPathFactory` instance can be used to create `XPath` objects.
XPathFactoryConfigurationException	`XPathFactoryConfigurationException` represents a configuration error in a `XPathFactory` environment.
XPathFunction	`XPathFunction` provides access to XPath functions.
XPathFunctionException	`XPathFunctionException` represents an error with an XPath function.
XPathFunctionResolver	`XPathFunctionResolver` provides access to the set of user defined `XPathFunction`s.
XPathVariableResolver	`XPathVariableResolver` provides access to the set of user defined XPath variables.

Y

YuvImage YuvImage contains YUV data and provides a method that compresses a region of the YUV data to a Jpeg.

Z

ZipEntry	This class is used to represent a ZIP file entry.
ZipError	Signals that an unrecoverable error has occurred.
ZipException	Signals that a Zip exception of some sort has occurred.
ZipFile	This class is used to read entries from a zip file.
ZipInputStream	This class implements an input stream filter for reading files in the ZIP file format.
ZipOutputStream	This class implements an output stream filter for writing files in the ZIP file format.
ZoomButton
ZoomButtonsController	The `ZoomButtonsController` handles showing and hiding the zoom controls and positioning it relative to an owner view.
ZoomButtonsController.OnZoomListener	Interface that will be called when the user performs an interaction that triggers some action, for example zooming.
ZoomControls	The `ZoomControls` class displays a simple set of controls used for zooming and provides callbacks to register for events.

Most visited

Recently visited

Results for

Class Index - Android SDK

A

B

C

D

E

F

Developer Guides

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z