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MediaBrowserCompat

public final class MediaBrowserCompat
extends Object

java.lang.Object
↳	android.support.v4.media.MediaBrowserCompat

Browses media content offered by a MediaBrowserServiceCompat.

This object is not thread-safe. All calls should happen on the thread on which the browser was constructed.

Summary

Nested classes
`class`	`MediaBrowserCompat.ConnectionCallback` Callbacks for connection related events.
`class`	`MediaBrowserCompat.ItemCallback` Callback for receiving the result of `getItem(String, MediaBrowserCompat.ItemCallback)`.
`class`	`MediaBrowserCompat.MediaItem` A class with information on a single media item for use in browsing media.
`class`	`MediaBrowserCompat.SubscriptionCallback` Callbacks for subscription related events.

Constants
`String`	`EXTRA_PAGE` Used as an int extra field to denote the page number to subscribe.
`String`	`EXTRA_PAGE_SIZE` Used as an int extra field to denote the number of media items in a page.

Public constructors
`MediaBrowserCompat(Context context, ComponentName serviceComponent, MediaBrowserCompat.ConnectionCallback callback, Bundle rootHints)` Creates a media browser for the specified media browse service.

Public methods
`void`	`connect()` Connects to the media browse service.
`void`	`disconnect()` Disconnects from the media browse service.
`Bundle`	`getExtras()` Gets any extras for the media service.
`void`	`getItem(String mediaId, MediaBrowserCompat.ItemCallback cb)` Retrieves a specific `MediaBrowserCompat.MediaItem` from the connected service.
`String`	`getRoot()` Gets the root id.
`ComponentName`	`getServiceComponent()` Gets the service component that the media browser is connected to.
`MediaSessionCompat.Token`	`getSessionToken()` Gets the media session token associated with the media browser.
`boolean`	`isConnected()` Returns whether the browser is connected to the service.
`void`	`subscribe(String parentId, Bundle options, MediaBrowserCompat.SubscriptionCallback callback)` Queries with service-specific arguments for information about the media items that are contained within the specified id and subscribes to receive updates when they change.
`void`	`subscribe(String parentId, MediaBrowserCompat.SubscriptionCallback callback)` Queries for information about the media items that are contained within the specified id and subscribes to receive updates when they change.
`void`	`unsubscribe(String parentId)` Unsubscribes for changes to the children of the specified media id.
`void`	`unsubscribe(String parentId, MediaBrowserCompat.SubscriptionCallback callback)` Unsubscribes for changes to the children of the specified media id.

Inherited methods

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.

Constants

EXTRA_PAGE

String EXTRA_PAGE

Used as an int extra field to denote the page number to subscribe. The value of EXTRA_PAGE should be greater than or equal to 1.

See also:

Constant Value: "android.media.browse.extra.PAGE"

EXTRA_PAGE_SIZE

String EXTRA_PAGE_SIZE

Used as an int extra field to denote the number of media items in a page. The value of EXTRA_PAGE_SIZE should be greater than or equal to 1.

See also:

Constant Value: "android.media.browse.extra.PAGE_SIZE"

Public constructors

MediaBrowserCompat

MediaBrowserCompat (Context context, 
                ComponentName serviceComponent, 
                MediaBrowserCompat.ConnectionCallback callback, 
                Bundle rootHints)

Creates a media browser for the specified media browse service.

Parameters
`context`	`Context`: The context.
`serviceComponent`	`ComponentName`: The component name of the media browse service.
`callback`	`MediaBrowserCompat.ConnectionCallback`: The connection callback.
`rootHints`	`Bundle`: An optional bundle of service-specific arguments to send to the media browse service when connecting and retrieving the root id for browsing, or null if none. The contents of this bundle may affect the information returned when browsing.

See also:

Public methods

connect

void connect ()

Connects to the media browse service.

The connection callback specified in the constructor will be invoked when the connection completes or fails.

disconnect

void disconnect ()

Disconnects from the media browse service. After this, no more callbacks will be received.

getExtras

Bundle getExtras ()

Gets any extras for the media service.

Returns
`Bundle`

Throws
`IllegalStateException`	if not connected.

getItem

void getItem (String mediaId, 
                MediaBrowserCompat.ItemCallback cb)

Retrieves a specific MediaBrowserCompat.MediaItem from the connected service. Not all services may support this, so falling back to subscribing to the parent's id should be used when unavailable.

Parameters
`mediaId`	`String`: The id of the item to retrieve.
`cb`	`MediaBrowserCompat.ItemCallback`: The callback to receive the result on.

getRoot

String getRoot ()

Gets the root id.

Note that the root id may become invalid or change when when the browser is disconnected.

Returns
`String`

Throws
`IllegalStateException`	if not connected.

getServiceComponent

ComponentName getServiceComponent ()

Gets the service component that the media browser is connected to.

Returns
`ComponentName`

getSessionToken

MediaSessionCompat.Token getSessionToken ()

Gets the media session token associated with the media browser.

Note that the session token may become invalid or change when when the browser is disconnected.

Returns
`MediaSessionCompat.Token`	The session token for the browser, never null.

Throws
`IllegalStateException`	if not connected.

isConnected

boolean isConnected ()

Returns whether the browser is connected to the service.

Returns
`boolean`

void subscribe (String parentId, 
                Bundle options, 
                MediaBrowserCompat.SubscriptionCallback callback)

Queries with service-specific arguments for information about the media items that are contained within the specified id and subscribes to receive updates when they change.

The list of subscriptions is maintained even when not connected and is restored after the reconnection. It is ok to subscribe while not connected but the results will not be returned until the connection completes.

If the id is already subscribed with a different callback then the new callback will replace the previous one and the child data will be reloaded.

Parameters
`parentId`	`String`: The id of the parent media item whose list of children will be subscribed.
`options`	`Bundle`: A bundle of service-specific arguments to send to the media browse service. The contents of this bundle may affect the information returned when browsing.
`callback`	`MediaBrowserCompat.SubscriptionCallback`: The callback to receive the list of children.

void subscribe (String parentId, 
                MediaBrowserCompat.SubscriptionCallback callback)

Queries for information about the media items that are contained within the specified id and subscribes to receive updates when they change.

If the id is already subscribed with a different callback then the new callback will replace the previous one and the child data will be reloaded.

Parameters
`parentId`	`String`: The id of the parent media item whose list of children will be subscribed.
`callback`	`MediaBrowserCompat.SubscriptionCallback`: The callback to receive the list of children.

unsubscribe

void unsubscribe (String parentId)

Unsubscribes for changes to the children of the specified media id.

The query callback will no longer be invoked for results associated with this id once this method returns.

Parameters
`parentId`	`String`: The id of the parent media item whose list of children will be unsubscribed.

unsubscribe

void unsubscribe (String parentId, 
                MediaBrowserCompat.SubscriptionCallback callback)

Unsubscribes for changes to the children of the specified media id.

The query callback will no longer be invoked for results associated with this id once this method returns.

Parameters
`parentId`	`String`: The id of the parent media item whose list of children will be unsubscribed.
`callback`	`MediaBrowserCompat.SubscriptionCallback`: A callback sent to the media browse service to subscribe.

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MediaBrowserCompat

Summary

Nested classes

Constants

Public constructors

Public methods

Inherited methods

Constants

EXTRA_PAGE

EXTRA_PAGE_SIZE

Public constructors

MediaBrowserCompat

Public methods

connect

disconnect

getExtras

getItem

getRoot

getServiceComponent

getSessionToken

isConnected

subscribe

subscribe

unsubscribe

unsubscribe