# MediaControllerCompat.Callback added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) belongs to Maven artifact com.android.support:support-media-compat:28.0.0-alpha1 Summary:[Ctors](https://developer.android.com/reference/android/support/v4-media-session/MediaControllerCompat.Callback#pubctors)\|[Methods](https://developer.android.com/reference/android/support/v4-media-session/MediaControllerCompat.Callback#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/v4-media-session/MediaControllerCompat.Callback#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/v4-media-session/MediaControllerCompat.Callback#) # MediaControllerCompat.Callback | This package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider[migrating](https://developer.android.com/jetpack/androidx/migrate)existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library[class mappings](https://developer.android.com/jetpack/androidx/migrate/class-mappings). ` public static abstract class MediaControllerCompat.Callback ` ` extends Object `` implements `[IBinder.DeathRecipient](https://developer.android.com/reference/android/os/IBinder.DeathRecipient.html)` ` |---|-----------------------------------------------------------------| | java.lang.Object || | ↳ | android.support.v4.media.session.MediaControllerCompat.Callback |
*** ** * ** *** Callback for receiving updates on from the session. A Callback can be registered using[registerCallback(MediaControllerCompat.Callback)](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat#registerCallback(android.support.v4.media.session.MediaControllerCompat.Callback)) ## Summary | ### Public constructors || |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---| | ` `[MediaControllerCompat.Callback](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#MediaControllerCompat.Callback())`() ` | | ### Public methods || |---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` void` | ` `[binderDied](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#binderDied())`() ` | | ` void` | ` `[onAudioInfoChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onAudioInfoChanged(android.support.v4.media.session.MediaControllerCompat.PlaybackInfo))`(`[MediaControllerCompat.PlaybackInfo](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.PlaybackInfo)` info) ` Override to handle changes to the audio info. | | ` void` | ` `[onCaptioningEnabledChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onCaptioningEnabledChanged(boolean))`(boolean enabled) ` Override to handle changes to the captioning enabled status. | | ` void` | ` `[onExtrasChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onExtrasChanged(android.os.Bundle))`(`[Bundle](https://developer.android.com/reference/android/os/Bundle.html)` extras) ` Override to handle changes to the[MediaSessionCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat)extras. | | ` void` | ` `[onMetadataChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onMetadataChanged(android.support.v4.media.MediaMetadataCompat))`(`[MediaMetadataCompat](https://developer.android.com/reference/android/support/v4/media/MediaMetadataCompat)` metadata) ` Override to handle changes to the current metadata. | | ` void` | ` `[onPlaybackStateChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onPlaybackStateChanged(android.support.v4.media.session.PlaybackStateCompat))`(`[PlaybackStateCompat](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat)` state) ` Override to handle changes in playback state. | | ` void` | ` `[onQueueChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onQueueChanged(java.util.List))`(List<`[MediaSessionCompat.QueueItem](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat.QueueItem)`> queue) ` Override to handle changes to items in the queue. | | ` void` | ` `[onQueueTitleChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onQueueTitleChanged(java.lang.CharSequence))`(CharSequence title) ` Override to handle changes to the queue title. | | ` void` | ` `[onRepeatModeChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onRepeatModeChanged(int))`(int repeatMode) ` Override to handle changes to the repeat mode. | | ` void` | ` `[onSessionDestroyed](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onSessionDestroyed())`() ` Override to handle the session being destroyed. | | ` void` | ` `[onSessionEvent](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onSessionEvent(java.lang.String, android.os.Bundle))`(String event, `[Bundle](https://developer.android.com/reference/android/os/Bundle.html)` extras) ` Override to handle custom events sent by the session owner without a specified interface. | | ` void` | ` `[onSessionReady](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onSessionReady())`() ` Override to handle the session being ready. | | ` void` | ` `[onShuffleModeChanged](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback#onShuffleModeChanged(int))`(int shuffleMode) ` Override to handle changes to the shuffle mode. | | ### Inherited methods | |-----------------------|---| | [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/v4-media-session/MediaControllerCompat.Callback#)From class` java.lang.Object ` |-------------------|-------------------------------| | ` Object` | ` clone() ` | | ` boolean` | ` equals(Object arg0) ` | | ` void` | ` finalize() ` | | ` final Class` | ` getClass() ` | | ` int` | ` hashCode() ` | | ` final void` | ` notify() ` | | ` final void` | ` notifyAll() ` | | ` String` | ` toString() ` | | ` final void` | ` wait(long arg0, int arg1) ` | | ` final void` | ` wait(long arg0) ` | | ` final void` | ` wait() ` | || | [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/v4-media-session/MediaControllerCompat.Callback#)From interface` `[android.os.IBinder.DeathRecipient](https://developer.android.com/reference/android/os/IBinder.DeathRecipient.html)` ` |------------------|------------------| | ` abstract void` | ` binderDied() ` | || ## Public constructors ### MediaControllerCompat.Callback added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` MediaControllerCompat.Callback () ```

## Public methods ### binderDied added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void binderDied () ```

### onAudioInfoChanged added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onAudioInfoChanged (MediaControllerCompat.PlaybackInfo info) ``` Override to handle changes to the audio info.
| Parameters || |--------|---------------------------------------------------------------------------------------| | `info` | `MediaControllerCompat.PlaybackInfo`: The current audio info for this session.
| ### onCaptioningEnabledChanged added in[version 25.4.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onCaptioningEnabledChanged (boolean enabled) ``` Override to handle changes to the captioning enabled status.
| Parameters || |-----------|-------------------------------------------------------------------| | `enabled` | `boolean`:`true`if captioning is enabled,`false`otherwise.
| ### onExtrasChanged added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onExtrasChanged (Bundle extras) ``` Override to handle changes to the[MediaSessionCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat)extras.
| Parameters || |----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `extras` | `Bundle`: The extras that can include other information associated with the[MediaSessionCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat).
| ### onMetadataChanged added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onMetadataChanged (MediaMetadataCompat metadata) ``` Override to handle changes to the current metadata.
| Parameters || |------------|-------------------------------------------------------------------------------------| | `metadata` | `MediaMetadataCompat`: The current metadata for the session or null if none.
| **See also:** - [MediaMetadataCompat](https://developer.android.com/reference/android/support/v4/media/MediaMetadataCompat) ### onPlaybackStateChanged added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onPlaybackStateChanged (PlaybackStateCompat state) ``` Override to handle changes in playback state.
| Parameters || |---------|---------------------------------------------------------------------| | `state` | `PlaybackStateCompat`: The new playback state of the session
| ### onQueueChanged added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onQueueChanged (List queue) ``` Override to handle changes to items in the queue.
| Parameters || |---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------| | `queue` | `List`: A list of items in the current play queue. It should include the currently playing item as well as previous and upcoming items if applicable.
| **See also:** - [MediaSessionCompat.QueueItem](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat.QueueItem) ### onQueueTitleChanged added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onQueueTitleChanged (CharSequence title) ``` Override to handle changes to the queue title.
| Parameters || |---------|---------------------------------------------------------------------------------------------------------------------------------------------------| | `title` | `CharSequence`: The title that should be displayed along with the play queue such as "Now Playing". May be null if there is no such title.
| ### onRepeatModeChanged added in[version 25.4.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onRepeatModeChanged (int repeatMode) ``` Override to handle changes to the repeat mode.
| Parameters || |--------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `repeatMode` | `int`: The repeat mode. It should be one of followings:[REPEAT_MODE_NONE](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat#REPEAT_MODE_NONE),[REPEAT_MODE_ONE](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat#REPEAT_MODE_ONE),[REPEAT_MODE_ALL](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat#REPEAT_MODE_ALL),[REPEAT_MODE_GROUP](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat#REPEAT_MODE_GROUP)
| ### onSessionDestroyed added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onSessionDestroyed () ``` Override to handle the session being destroyed. The session is no longer valid after this call and calls to it will be ignored.
### onSessionEvent added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onSessionEvent (String event, Bundle extras) ``` Override to handle custom events sent by the session owner without a specified interface. Controllers should only handle these for sessions they own.
| Parameters || |----------|-----------------------------------------------------| | `event` | `String`: The event from the session.
| | `extras` | `Bundle`: Optional parameters for the event.
| ### onSessionReady added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onSessionReady () ``` Override to handle the session being ready.
**See also:** - [isSessionReady()](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat#isSessionReady()) ### onShuffleModeChanged added in[version 26.1.0](https://developer.android.com/topic/libraries/support-library/revisions) ``` void onShuffleModeChanged (int shuffleMode) ``` Override to handle changes to the shuffle mode.
| Parameters || |---------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `shuffleMode` | `int`: The shuffle mode. Must be one of the followings:[SHUFFLE_MODE_NONE](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat#SHUFFLE_MODE_NONE),[SHUFFLE_MODE_ALL](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat#SHUFFLE_MODE_ALL),[SHUFFLE_MODE_GROUP](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat#SHUFFLE_MODE_GROUP)
| - ## Interfaces - [MediaSessionCompat.OnActiveChangeListener](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat.OnActiveChangeListener) - ## Classes - [MediaButtonReceiver](https://developer.android.com/reference/android/support/v4/media/session/MediaButtonReceiver) - [MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat) - [MediaControllerCompat.Callback](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.Callback) - [MediaControllerCompat.PlaybackInfo](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.PlaybackInfo) - [MediaControllerCompat.TransportControls](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat.TransportControls) - [MediaSessionCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat) - [MediaSessionCompat.Callback](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat.Callback) - [MediaSessionCompat.QueueItem](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat.QueueItem) - [MediaSessionCompat.Token](https://developer.android.com/reference/android/support/v4/media/session/MediaSessionCompat.Token) - [ParcelableVolumeInfo](https://developer.android.com/reference/android/support/v4/media/session/ParcelableVolumeInfo) - [PlaybackStateCompat](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat) - [PlaybackStateCompat.Builder](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat.Builder) - [PlaybackStateCompat.CustomAction](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat.CustomAction) - [PlaybackStateCompat.CustomAction.Builder](https://developer.android.com/reference/android/support/v4/media/session/PlaybackStateCompat.CustomAction.Builder)