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AlertDialog

public class AlertDialog
extends AppCompatDialog implements DialogInterface

java.lang.Object
↳	android.app.Dialog
	↳	android.support.v7.app.AppCompatDialog
		↳	android.support.v7.app.AlertDialog

Known Direct Subclasses

MediaRouteControllerDialog

A subclass of Dialog that can display one, two or three buttons. If you only want to display a String in this dialog box, use the setMessage() method. If you want to display a more complex view, look up the FrameLayout called "custom" and add your view to it:

 FrameLayout fl = (FrameLayout) findViewById(android.R.id.custom);
 fl.addView(myView, new LayoutParams(MATCH_PARENT, WRAP_CONTENT));

The AlertDialog class takes care of automatically setting WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM for you based on whether any views in the dialog return true from View.onCheckIsTextEditor(). Generally you want this set for a Dialog without text editors, so that it will be placed on top of the current input method UI. You can modify this behavior by forcing the flag to your desired mode after calling onCreate(Bundle).

Developer Guides

For more information about creating dialogs, read the Dialogs developer guide.

Summary

Nested classes
`class`	`AlertDialog.Builder`

Inherited constants

From interface


    android.content.DialogInterface

Protected constructors
`AlertDialog(Context context)`
`AlertDialog(Context context, int themeResId)` Construct an AlertDialog that uses an explicit theme.
`AlertDialog(Context context, boolean cancelable, DialogInterface.OnCancelListener cancelListener)`

Public methods
`Button`	`getButton(int whichButton)` Gets one of the buttons used in the dialog.
`ListView`	`getListView()` Gets the list view used in the dialog.
`boolean`	`onKeyDown(int keyCode, KeyEvent event)` A key was pressed down.
`boolean`	`onKeyUp(int keyCode, KeyEvent event)` A key was released.
`void`	`setButton(int whichButton, CharSequence text, DialogInterface.OnClickListener listener)` Sets a listener to be invoked when the positive button of the dialog is pressed.
`void`	`setButton(int whichButton, CharSequence text, Message msg)` Sets a message to be sent when a button is pressed.
`void`	`setCustomTitle(View customTitleView)`
`void`	`setIcon(Drawable icon)` Set the `Drawable` to be used in the title.
`void`	`setIcon(int resId)` Set resId to 0 if you don't want an icon.
`void`	`setIconAttribute(int attrId)` Sets an icon as supplied by a theme attribute.
`void`	`setMessage(CharSequence message)` Sets the message to display.
`void`	`setTitle(CharSequence title)` Set the title text for this dialog's window.
`void`	`setView(View view, int viewSpacingLeft, int viewSpacingTop, int viewSpacingRight, int viewSpacingBottom)` Set the view to display in the dialog, specifying the spacing to appear around that view.
`void`	`setView(View view)` Set the view to display in the dialog.

Protected methods
`void`	`onCreate(Bundle savedInstanceState)` Similar to `onCreate(Bundle)`, you should initialize your dialog in this method, including calling `setContentView(View)`.

Inherited methods

From class


  
    android.support.v7.app.AppCompatDialog

From class


  
    android.app.Dialog

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


  
    android.support.v7.app.AppCompatCallback

From interface


  
    android.content.DialogInterface

From interface


  
    android.view.Window.Callback

From interface


  
    android.view.KeyEvent.Callback

From interface


  
    android.view.View.OnCreateContextMenuListener

Protected constructors

AlertDialog

AlertDialog (Context context)

Parameters
`context`	`Context`

AlertDialog

AlertDialog (Context context, 
                int themeResId)

Construct an AlertDialog that uses an explicit theme. The actual style that an AlertDialog uses is a private implementation, however you can here supply either the name of an attribute in the theme from which to get the dialog's style (such as alertDialogTheme.

Parameters
`context`	`Context`
`themeResId`	`int`

AlertDialog

AlertDialog (Context context, 
                boolean cancelable, 
                DialogInterface.OnCancelListener cancelListener)

Parameters
`context`	`Context`
`cancelable`	`boolean`
`cancelListener`	`DialogInterface.OnCancelListener`

Public methods

getButton

Button getButton (int whichButton)

Gets one of the buttons used in the dialog. Returns null if the specified button does not exist or the dialog has not yet been fully created (for example, via show() or create()).

Parameters
`whichButton`	`int`: The identifier of the button that should be returned. For example, this can be `BUTTON_POSITIVE`.

Returns
`Button`	The button from the dialog, or null if a button does not exist.

getListView

ListView getListView ()

Gets the list view used in the dialog.

Returns
`ListView`	The `ListView` from the dialog.

onKeyDown

boolean onKeyDown (int keyCode, 
                KeyEvent event)

A key was pressed down.

If the focused view didn't want this event, this method is called.

The default implementation consumed the KEYCODE_BACK to later handle it in onKeyUp(int, KeyEvent).

Parameters
`keyCode`	`int`: The value in event.getKeyCode().
`event`	`KeyEvent`: Description of the key event.

Returns
`boolean`	If you handled the event, return true. If you want to allow the event to be handled by the next receiver, return false.

onKeyUp

boolean onKeyUp (int keyCode, 
                KeyEvent event)

A key was released.

The default implementation handles KEYCODE_BACK to close the dialog.

Parameters
`keyCode`	`int`: The value in event.getKeyCode().
`event`	`KeyEvent`: Description of the key event.

Returns
`boolean`	If you handled the event, return true. If you want to allow the event to be handled by the next receiver, return false.

setButton

void setButton (int whichButton, 
                CharSequence text, 
                DialogInterface.OnClickListener listener)

Sets a listener to be invoked when the positive button of the dialog is pressed. This method has no effect if called after show().

Parameters
`whichButton`	`int`: Which button to set the listener on, can be one of `BUTTON_POSITIVE`, `BUTTON_NEGATIVE`, or `BUTTON_NEUTRAL`
`text`	`CharSequence`: The text to display in positive button.
`listener`	`DialogInterface.OnClickListener`: The `DialogInterface.OnClickListener` to use.

setButton

void setButton (int whichButton, 
                CharSequence text, 
                Message msg)

Sets a message to be sent when a button is pressed. This method has no effect if called after show().

Parameters
`whichButton`	`int`: Which button to set the message for, can be one of `BUTTON_POSITIVE`, `BUTTON_NEGATIVE`, or `BUTTON_NEUTRAL`
`text`	`CharSequence`: The text to display in positive button.
`msg`	`Message`: The `Message` to be sent when clicked.

setCustomTitle

void setCustomTitle (View customTitleView)

Parameters
`customTitleView`	`View`

See also:

This method has no effect if called after {@link #show()}.

setIcon

void setIcon (Drawable icon)

Set the Drawable to be used in the title.

Parameters
`icon`	`Drawable`: Drawable to use as the icon or null if you don't want an icon.

setIcon

void setIcon (int resId)

Set resId to 0 if you don't want an icon.

Parameters
`resId`	`int`: the resourceId of the drawable to use as the icon or 0 if you don't want an icon.

setIconAttribute

void setIconAttribute (int attrId)

Sets an icon as supplied by a theme attribute. e.g. android.R.attr.alertDialogIcon

Parameters
`attrId`	`int`: ID of a theme attribute that points to a drawable resource.

setMessage

void setMessage (CharSequence message)

Sets the message to display.

Parameters
`message`	`CharSequence`: The message to display in the dialog.

setTitle

void setTitle (CharSequence title)

Set the title text for this dialog's window.

Parameters
`title`	`CharSequence`: The new text to display in the title.

setView

void setView (View view, 
                int viewSpacingLeft, 
                int viewSpacingTop, 
                int viewSpacingRight, 
                int viewSpacingBottom)

Set the view to display in the dialog, specifying the spacing to appear around that view. This method has no effect if called after show().

Parameters
`view`	`View`: The view to show in the content area of the dialog
`viewSpacingLeft`	`int`: Extra space to appear to the left of `view`
`viewSpacingTop`	`int`: Extra space to appear above `view`
`viewSpacingRight`	`int`: Extra space to appear to the right of `view`
`viewSpacingBottom`	`int`: Extra space to appear below `view`

setView

void setView (View view)

Set the view to display in the dialog. This method has no effect if called after show().

Parameters
`view`	`View`

Protected methods

onCreate

void onCreate (Bundle savedInstanceState)

Similar to onCreate(Bundle), you should initialize your dialog in this method, including calling setContentView(View).

Parameters
`savedInstanceState`	`Bundle`: If this dialog is being reinitialized after a the hosting activity was previously shut down, holds the result from the most recent call to `onSaveInstanceState()`, or null if this is the first time.

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Results for

AlertDialog

Developer Guides

Summary

Nested classes

Inherited constants

Protected constructors

Public methods

Protected methods

Inherited methods

Protected constructors

AlertDialog

AlertDialog

AlertDialog

Public methods

getButton

getListView

onKeyDown

onKeyUp

setButton

setButton

setCustomTitle

setIcon

setIcon

setIconAttribute

setMessage

setTitle

setView

setView

Protected methods

onCreate