MediaController

Artifact: androidx.media3:media3-session

Kotlin |Java

@DoNotMock
public class MediaController implements Player

Known direct subclasses

MediaBrowser

MediaBrowser

Browses media content offered by a MediaLibraryService in addition to the functions.

A controller that interacts with a MediaSession, a MediaSessionService hosting a MediaSession, or a MediaLibraryService hosting a . The MediaSession typically resides in a remote process like another app but may be in the same process as this controller. It implements and the player commands are sent to the underlying Player of the connected . It also has session-specific commands that can be handled by .

Topics covered here:

Controller Lifecycle
Threading Model
Package Visibility Filter
Backward Compatibility with legacy media sessions

Controller Lifecycle

When a controller is created with the SessionToken for a MediaSession (i.e. session token type is TYPE_SESSION), the controller will connect to the specific session.

When a controller is created with the SessionToken for a MediaSessionService (i.e. session token type is TYPE_SESSION_SERVICE or TYPE_LIBRARY_SERVICE), the controller binds to the service for connecting to a MediaSession in it. MediaSessionService will provide a session to connect.

When you're done, use releaseFuture or release to clean up resources. This also helps the session service to be destroyed when there's no controller associated with it. Releasing the controller will still deliver all pending commands sent to the session and only unbind from the session service once these commands have been handled, or after a timeout of RELEASE_UNBIND_TIMEOUT_MS.

Threading Model

Methods of this class should be called from the application thread associated with the application looper. Otherwise, IllegalStateException will be thrown. Also, the methods of Player.Listener and Listener will be called from the application thread.

Package Visibility Filter

The app targeting API level 30 or higher must include a <queries> element in their manifest to connect to a service component of another app like MediaSessionService, MediaLibraryService, or androidx.media.MediaBrowserServiceCompat). See the following example and this guide for more information.

<!-- As intent actions -->
<intent>
  <action android:name="androidx.media3.session.MediaSessionService" />
</intent>
<intent>
  <action android:name="androidx.media3.session.MediaLibraryService" />
</intent>
<intent>
  <action android:name="android.media.browse.MediaBrowserService" />
</intent>
<!-- Or, as a package name -->
<package android:name="package_name_of_the_other_app" />

Backward Compatibility with legacy media sessions

In addition to MediaSession, the controller also supports connecting to a legacy media session - android.media.session.MediaSession and android.support.v4.media.session.MediaSessionCompat.

To request legacy sessions to play media, use one of the setMediaItem methods and set either mediaId, mediaUri or searchQuery. Once the controller is prepared, the controller triggers one of the following methods on android.support.v4.media.session.MediaSessionCompat.Callback depending on the provided information and the value of getPlayWhenReady:

onPrepareFromUri
onPlayFromUri
onPrepareFromMediaId
onPlayFromMediaId
onPrepareFromSearch
onPlayFromSearch

Other playlist change methods, like addMediaItem or removeMediaItem, trigger the MediaSessionCompat.Callback.onAddQueueItem and


MediaSessionCompat.Callback.onRemoveQueueItem

callbacks. Check getAvailableCommands to see if playlist modifications are supported by the legacy session.

Summary

Nested types
`public final class MediaController.Builder` A builder for `MediaController`.
`public interface MediaController.Listener` A listener for events and incoming commands from `MediaSession`.

Constants
`static final String`	`@UnstableApi KEY_MEDIA_NOTIFICATION_CONTROLLER_FLAG = "androidx.media3.session.MediaNotificationManager"` Key to mark the connection hints of the media notification controller.
`static final long`	`@UnstableApi RELEASE_UNBIND_TIMEOUT_MS = 30000` The timeout for handling pending commands after calling `release`.

Public methods
`final void`	`addListener(Player.Listener listener)` Registers a listener to receive all events from the player.
`final void`	`addMediaItem(MediaItem mediaItem)` Adds a media item to the end of the playlist.
`final void`	`addMediaItem(int index, MediaItem mediaItem)` Adds a media item at the given index of the playlist.
`final void`	`addMediaItems(List<MediaItem> mediaItems)` Adds a list of media items to the end of the playlist.
`final void`	`addMediaItems(int index, List<MediaItem> mediaItems)` Adds a list of media items at the given index of the playlist.
`final boolean`	`canAdvertiseSession()` Returns whether the player can be used to advertise a media session.
`final void`	`clearMediaItems()` Clears the playlist.
`final void`	`clearVideoSurface()` Clears any `Surface`, `SurfaceHolder`, `SurfaceView` or `TextureView` currently set on the player.
`final void`	`clearVideoSurface(@Nullable Surface surface)` Clears the `Surface` onto which video is being rendered if it matches the one passed.
`final void`	`clearVideoSurfaceHolder(@Nullable SurfaceHolder surfaceHolder)` Clears the `SurfaceHolder` that holds the `Surface` onto which video is being rendered if it matches the one passed.
`final void`	`clearVideoSurfaceView(@Nullable SurfaceView surfaceView)` Clears the `SurfaceView` onto which video is being rendered if it matches the one passed.
`final void`	`clearVideoTextureView(@Nullable TextureView textureView)` Clears the `TextureView` onto which video is being rendered if it matches the one passed.
`final void`	`decreaseDeviceVolume()` This method is deprecated. Use `decreaseDeviceVolume` instead.
`final void`	`decreaseDeviceVolume(@C.VolumeFlags int flags)` Decreases the volume of the device.
`final Looper`	`getApplicationLooper()` Returns the `Looper` associated with the application thread that's used to access the player and on which player events are received.
`final AudioAttributes`	`getAudioAttributes()` Returns the attributes for audio playback.
`final Player.Commands`	`getAvailableCommands()` Returns the player's currently available `Commands`.
`final SessionCommands`	`getAvailableSessionCommands()` Returns the current available session commands from `onAvailableSessionCommandsChanged`, or `EMPTY` if it is not connected.
`final @IntRange(from = 0, to = 100) int`	`getBufferedPercentage()` Returns an estimate of the percentage in the current content or ad up to which data is buffered, or 0 if no estimate is available.
`final long`	`getBufferedPosition()` Returns an estimate of the position in the current content or ad up to which data is buffered, in milliseconds.
`final ImmutableList<CommandButton>`	`@UnstableApi getCommandButtonsForMediaItem(MediaItem mediaItem)` Returns the command buttons that are supported for the given `MediaItem`.
`final @Nullable SessionToken`	`getConnectedToken()` Returns the `SessionToken` of the connected session, or `null` if it is not connected.
`final long`	`getContentBufferedPosition()` If #isPlayingAd() returns true}, returns an estimate of the content position in the current content up to which data is buffered, in milliseconds.
`final long`	`getContentDuration()` If #isPlayingAd() returns true}, returns the duration of the current content in milliseconds, or C#TIME_UNSET if the duration is not known.
`final long`	`getContentPosition()` If #isPlayingAd() returns true}, returns the content position that will be played once all ads in the ad group have finished playing, in milliseconds.
`final int`	`getCurrentAdGroupIndex()` If `isPlayingAd` returns true, returns the index of the ad group in the period currently being played.
`final int`	`getCurrentAdIndexInAdGroup()` If `isPlayingAd` returns true, returns the index of the ad in its ad group.
`final CueGroup`	`getCurrentCues()` Returns the current `CueGroup`.
`final long`	`getCurrentLiveOffset()` Returns the offset of the current playback position from the live edge in milliseconds, or `TIME_UNSET` if the current `MediaItemisn't live` or the offset is unknown.
`final @Nullable Object`	`@UnstableApi getCurrentManifest()` Returns `null`.
`final @Nullable MediaItem`	`getCurrentMediaItem()` Returns the currently playing `MediaItem`.
`final int`	`getCurrentMediaItemIndex()` Returns the index of the current `MediaItem` in the `timeline`, or the prospective index if the `current timeline` is empty.
`final int`	`getCurrentPeriodIndex()` Returns the index of the period currently being played.
`final long`	`getCurrentPosition()` Returns the playback position in the current content or ad, in milliseconds, or the prospective position in milliseconds if the `current timeline` is empty.
`final Timeline`	`getCurrentTimeline()` Returns the current .
`final Tracks`	`getCurrentTracks()` Returns the current tracks.
`final int`	`@UnstableApi getCurrentWindowIndex()` This method is deprecated. Use `getCurrentMediaItemIndex` instead.
`final ImmutableList<CommandButton>`	`@UnstableApi getCustomLayout()` Returns the custom layout.
`final DeviceInfo`	`getDeviceInfo()` Gets the device information.
`final @IntRange(from = 0) int`	`getDeviceVolume()` Gets the current volume of the device.
`final long`	`getDuration()` Returns the duration of the current content or ad in milliseconds, or `TIME_UNSET` if the duration is not known.
`final long`	`getMaxSeekToPreviousPosition()` Returns the maximum position for which #seekToPrevious() seeks to the previous * , in milliseconds.
`final ImmutableList<CommandButton>`	`@UnstableApi getMediaButtonPreferences()` Returns the media button preferences.
`final MediaItem`	`getMediaItemAt(int index)` Returns the `MediaItem` at the given index.
`final int`	`getMediaItemCount()` Returns the number of `media items` in the playlist.
`final MediaMetadata`	`getMediaMetadata()` Returns the current combined `MediaMetadata`, or `EMPTY` if not supported.
`final int`	`getNextMediaItemIndex()` Returns the index of the that will be played if * #seekToNextMediaItem() is called, which may depend on the current repeat mode and whether shuffle mode is enabled.
`final int`	`@UnstableApi getNextWindowIndex()` This method is deprecated. Use `getNextMediaItemIndex` instead.
`final boolean`	`getPlayWhenReady()` Whether playback will proceed when `getPlaybackState` == `STATE_READY`.
`final PlaybackParameters`	`getPlaybackParameters()` Returns the currently active playback parameters.
`final int`	`@Player.State getPlaybackState()` Returns the current `playback state` of the player.
`final int`	`@Player.PlaybackSuppressionReason getPlaybackSuppressionReason()` Returns the reason why playback is suppressed even though `getPlayWhenReady` is `true`, or `PLAYBACK_SUPPRESSION_REASON_NONE` if playback is not suppressed.
`final @Nullable PlaybackException`	`getPlayerError()` Returns the error that caused playback to fail.
`final MediaMetadata`	`getPlaylistMetadata()` Returns the playlist `MediaMetadata`, as set by `setPlaylistMetadata`, or `EMPTY` if not supported.
`final int`	`getPreviousMediaItemIndex()` Returns the index of the that will be played if * #seekToPreviousMediaItem() is called, which may depend on the current repeat mode and whether shuffle mode is enabled.
`final int`	`@UnstableApi getPreviousWindowIndex()` This method is deprecated. Use `getPreviousMediaItemIndex` instead.
`final int`	`@Player.RepeatMode getRepeatMode()` Returns the current `RepeatMode` used for playback.
`final long`	`getSeekBackIncrement()` Returns the #seekBack() increment.
`final long`	`getSeekForwardIncrement()` Returns the #seekForward() increment.
`final @Nullable PendingIntent`	`getSessionActivity()` Returns an intent for launching UI associated with the session if exists, or `null`.
`final Bundle`	`@UnstableApi getSessionExtras()` Returns the session extras.
`final boolean`	`getShuffleModeEnabled()` Returns whether shuffling of media items is enabled.
`final Size`	`@UnstableApi getSurfaceSize()` Gets the size of the surface on which the video is rendered.
`final long`	`getTotalBufferedDuration()` Returns an estimate of the total buffered duration from the current position, in milliseconds.
`final TrackSelectionParameters`	`getTrackSelectionParameters()` Returns the parameters constraining the track selection.
`final VideoSize`	`getVideoSize()` Gets the size of the video.
`final @FloatRange(from = 0, to = 1) float`	`getVolume()` Returns the audio volume, with 0 being silence and 1 being unity gain (signal unchanged).
`final boolean`	`@UnstableApi hasNext()` This method is deprecated. Use `hasNextMediaItem` instead.
`final boolean`	`hasNextMediaItem()` Returns whether a next `MediaItem` exists, which may depend on the current repeat mode and whether shuffle mode is enabled.
`final boolean`	`@UnstableApi hasNextWindow()` This method is deprecated. Use `hasNextMediaItem` instead.
`final boolean`	`hasPreviousMediaItem()` Returns whether a previous media item exists, which may depend on the current repeat mode and whether shuffle mode is enabled.
`final void`	`increaseDeviceVolume()` This method is deprecated. Use `increaseDeviceVolume` instead.
`final void`	`increaseDeviceVolume(@C.VolumeFlags int flags)` Increases the volume of the device.
`final boolean`	`isCommandAvailable(@Player.Command int command)` Returns whether the provided `Command` is available.
`final boolean`	`isConnected()` Returns whether this controller is connected to a `MediaSession` or not.
`final boolean`	`isCurrentMediaItemDynamic()` Returns whether the current `MediaItem` is dynamic (may change when the `Timeline` is updated), or `false` if the `Timeline` is empty.
`final boolean`	`isCurrentMediaItemLive()` Returns whether the current `MediaItem` is live, or `false` if the `Timeline` is empty.
`final boolean`	`isCurrentMediaItemSeekable()` Returns whether the current `MediaItem` is seekable, or `false` if the is empty.
`final boolean`	`@UnstableApi isCurrentWindowDynamic()` This method is deprecated. Use `isCurrentMediaItemDynamic` instead.
`final boolean`	`@UnstableApi isCurrentWindowLive()` This method is deprecated. Use `isCurrentMediaItemLive` instead.
`final boolean`	`@UnstableApi isCurrentWindowSeekable()` This method is deprecated. Use `isCurrentMediaItemSeekable` instead.
`final boolean`	`isDeviceMuted()` Gets whether the device is muted or not.
`final boolean`	`isLoading()` Whether the player is currently loading the source.
`final boolean`	`isPlaying()` Returns whether the player is playing, i.e. `getCurrentPosition` is advancing.
`final boolean`	`isPlayingAd()` Returns whether the player is currently playing an ad.
`final boolean`	`isSessionCommandAvailable( @SessionCommand.CommandCode int sessionCommandCode )` Returns whether the `SessionCommand.CommandCode` is available.
`final boolean`	`isSessionCommandAvailable(SessionCommand sessionCommand)` Returns whether the `SessionCommand` is available.
`final void`	`moveMediaItem(int currentIndex, int newIndex)` Moves the media item at the current index to the new index.
`final void`	`moveMediaItems(int fromIndex, int toIndex, int newIndex)` Moves the media item range to the new index.
`final void`	`@UnstableApi next()` This method is deprecated. Use `seekToNextMediaItem` instead.
`final void`	`pause()` Pauses playback.
`final void`	`play()` Resumes playback as soon as `getPlaybackState` == `STATE_READY`.
`final void`	`prepare()` Prepares the player.
`final void`	`release()` Releases the connection between `MediaController` and `MediaSession`.
`static void`	`releaseFuture(Future<MediaController> controllerFuture)` Releases the future controller returned by `buildAsync`.
`final void`	`removeListener(Player.Listener listener)` Unregister a listener registered through `addListener`.
`final void`	`removeMediaItem(int index)` Removes the media item at the given index of the playlist.
`final void`	`removeMediaItems(int fromIndex, int toIndex)` Removes a range of media items from the playlist.
`final void`	`replaceMediaItem(int index, MediaItem mediaItem)` Replaces the media item at the given index of the playlist.
`final void`	`replaceMediaItems( int fromIndex, int toIndex, List<MediaItem> mediaItems )` Replaces the media items at the given range of the playlist.
`final void`	`seekBack()` Seeks back in the current by #getSeekBackIncrement() milliseconds.
`final void`	`seekForward()` Seeks forward in the current by #getSeekForwardIncrement() milliseconds.
`final void`	`seekTo(long positionMs)` Seeks to a position specified in milliseconds in the current `MediaItem`.
`final void`	`seekTo(int mediaItemIndex, long positionMs)` Seeks to a position specified in milliseconds in the specified `MediaItem`.
`final void`	`seekToDefaultPosition()` Seeks to the default position associated with the current `MediaItem`.
`final void`	`seekToDefaultPosition(int mediaItemIndex)` Seeks to the default position associated with the specified `MediaItem`.
`final void`	`seekToNext()` Seeks to a later position in the current or next (if available).
`final void`	`seekToNextMediaItem()` Seeks to the default position of the next , which may depend on the current repeat mode and whether shuffle mode is enabled.
`final void`	`@UnstableApi seekToNextWindow()` This method is deprecated. Use `seekToNextMediaItem` instead.
`final void`	`seekToPrevious()` Seeks to an earlier position in the current or previous (if available).
`final void`	`seekToPreviousMediaItem()` Seeks to the default position of the previous , which may depend on the current repeat mode and whether shuffle mode is enabled.
`final void`	`@UnstableApi seekToPreviousWindow()` This method is deprecated. Use `seekToPreviousMediaItem` instead.
`final ListenableFuture<SessionResult>`	`sendCustomCommand(SessionCommand command, Bundle args)` Sends a custom command to the session.
`final ListenableFuture<SessionResult>`	`@UnstableApi sendCustomCommand( SessionCommand command, MediaItem mediaItem, Bundle args )` Sends a custom command to the session for the given `media item`.
`final void`	`setAudioAttributes( AudioAttributes audioAttributes, boolean handleAudioFocus )` Sets the attributes for audio playback, used by the underlying audio track.
`final void`	`setDeviceMuted(boolean muted)` This method is deprecated. Use `setDeviceMuted` instead.
`final void`	`setDeviceMuted(boolean muted, @C.VolumeFlags int flags)` Sets the mute state of the device.
`final void`	`setDeviceVolume(@IntRange(from = 0) int volume)` This method is deprecated. Use `setDeviceVolume` instead.
`final void`	`setDeviceVolume(@IntRange(from = 0) int volume, @C.VolumeFlags int flags)` Sets the volume of the device with volume flags.
`final void`	`setMediaItem(MediaItem mediaItem)` Clears the playlist, adds the specified `MediaItem` and resets the position to the default position.
`final void`	`setMediaItem(MediaItem mediaItem, boolean resetPosition)` Clears the playlist and adds the specified `MediaItem`.
`final void`	`setMediaItem(MediaItem mediaItem, long startPositionMs)` Clears the playlist and adds the specified `MediaItem`.
`final void`	`setMediaItems(List<MediaItem> mediaItems)` Clears the playlist, adds the specified `media items` and resets the position to the default position.
`final void`	`setMediaItems(List<MediaItem> mediaItems, boolean resetPosition)` Clears the playlist and adds the specified `media items`.
`final void`	`setMediaItems( List<MediaItem> mediaItems, int startIndex, long startPositionMs )` Clears the playlist and adds the specified `media items`.
`final void`	`setPlayWhenReady(boolean playWhenReady)` Sets whether playback should proceed when `getPlaybackState` == `STATE_READY`.
`final void`	`setPlaybackParameters(PlaybackParameters playbackParameters)` Attempts to set the playback parameters.
`final void`	`setPlaybackSpeed(float speed)` Changes the rate at which playback occurs.
`final void`	`setPlaylistMetadata(MediaMetadata playlistMetadata)` Sets the playlist `MediaMetadata`.
`final ListenableFuture<SessionResult>`	`setRating(Rating rating)` Requests that the connected `MediaSession` rates the current media item.
`final ListenableFuture<SessionResult>`	`setRating(String mediaId, Rating rating)` Requests that the connected `MediaSession` rates the media.
`final void`	`setRepeatMode(@Player.RepeatMode int repeatMode)` Sets the `RepeatMode` to be used for playback.
`final void`	`setShuffleModeEnabled(boolean shuffleModeEnabled)` Sets whether shuffling of media items is enabled.
`final void`	`setTrackSelectionParameters(TrackSelectionParameters parameters)` Sets the parameters constraining the track selection.
`final void`	`setVideoSurface(@Nullable Surface surface)` Sets the `Surface` onto which video will be rendered.
`final void`	`setVideoSurfaceHolder(@Nullable SurfaceHolder surfaceHolder)` Sets the `SurfaceHolder` that holds the `Surface` onto which video will be rendered.
`final void`	`setVideoSurfaceView(@Nullable SurfaceView surfaceView)` Sets the `SurfaceView` onto which video will be rendered.
`final void`	`setVideoTextureView(@Nullable TextureView textureView)` Sets the `TextureView` onto which video will be rendered.
`final void`	`setVolume(@FloatRange(from = 0, to = 1) float volume)` Sets the audio volume, valid values are between 0 (silence) and 1 (unity gain, signal unchanged), inclusive.
`final void`	`stop()` Stops playback without resetting the playlist.

Inherited Constants

From androidx.media3.common.Player

`static final int`	`COMMAND_ADJUST_DEVICE_VOLUME = 26` This field is deprecated. Use `COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS` instead.
`static final int`	`COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS = 34` Command to increase and decrease the device volume and mute it with volume flags.
`static final int`	`COMMAND_CHANGE_MEDIA_ITEMS = 20` Command to change the `media items` in the playlist.
`static final int`	`COMMAND_GET_AUDIO_ATTRIBUTES = 21` Command to get the player current `AudioAttributes`.
`static final int`	`COMMAND_GET_CURRENT_MEDIA_ITEM = 16` Command to get information about the currently playing `MediaItem`.
`static final int`	`COMMAND_GET_DEVICE_VOLUME = 23` Command to get the device volume and whether it is muted.
`static final int`	`COMMAND_GET_MEDIA_ITEMS_METADATA = 18` This field is deprecated. Use `COMMAND_GET_METADATA` instead.
`static final int`	`COMMAND_GET_METADATA = 18` Command to get metadata related to the playlist and current `MediaItem`.
`static final int`	`COMMAND_GET_TEXT = 28` Command to get the text that should currently be displayed by the player.
`static final int`	`COMMAND_GET_TIMELINE = 17` Command to get the information about the current timeline.
`static final int`	`COMMAND_GET_TRACKS = 30` Command to get details of the current track selection.
`static final int`	`COMMAND_GET_VOLUME = 22` Command to get the player volume.
`static final int`	`COMMAND_INVALID = -1` Represents an invalid `Command`.
`static final int`	`COMMAND_PLAY_PAUSE = 1` Command to start, pause or resume playback.
`static final int`	`COMMAND_PREPARE = 2` Command to prepare the player.
`static final int`	`COMMAND_RELEASE = 32` Command to release the player.
`static final int`	`COMMAND_SEEK_BACK = 11` Command to seek back by a fixed increment inside the current `MediaItem`.
`static final int`	`COMMAND_SEEK_FORWARD = 12` Command to seek forward by a fixed increment inside the current `MediaItem`.
`static final int`	`COMMAND_SEEK_IN_CURRENT_MEDIA_ITEM = 5` Command to seek anywhere inside the current `MediaItem`.
`static final int`	`@UnstableApi COMMAND_SEEK_IN_CURRENT_WINDOW = 5` This field is deprecated. Use `COMMAND_SEEK_IN_CURRENT_MEDIA_ITEM` instead.
`static final int`	`COMMAND_SEEK_TO_DEFAULT_POSITION = 4` Command to seek to the default position of the current `MediaItem`.
`static final int`	`COMMAND_SEEK_TO_MEDIA_ITEM = 10` Command to seek anywhere in any `MediaItem`.
`static final int`	`COMMAND_SEEK_TO_NEXT = 9` Command to seek to a later position in the current `MediaItem` or the default position of the next `MediaItem`.
`static final int`	`COMMAND_SEEK_TO_NEXT_MEDIA_ITEM = 8` Command to seek to the default position of the next `MediaItem`.
`static final int`	`@UnstableApi COMMAND_SEEK_TO_NEXT_WINDOW = 8` This field is deprecated. Use `COMMAND_SEEK_TO_NEXT_MEDIA_ITEM` instead.
`static final int`	`COMMAND_SEEK_TO_PREVIOUS = 7` Command to seek to an earlier position in the current `MediaItem` or the default position of the previous `MediaItem`.
`static final int`	`COMMAND_SEEK_TO_PREVIOUS_MEDIA_ITEM = 6` Command to seek to the default position of the previous `MediaItem`.
`static final int`	`@UnstableApi COMMAND_SEEK_TO_PREVIOUS_WINDOW = 6` This field is deprecated. Use `COMMAND_SEEK_TO_PREVIOUS_MEDIA_ITEM` instead.
`static final int`	`@UnstableApi COMMAND_SEEK_TO_WINDOW = 10` This field is deprecated. Use `COMMAND_SEEK_TO_MEDIA_ITEM` instead.
`static final int`	`COMMAND_SET_AUDIO_ATTRIBUTES = 35` Command to set the player's audio attributes.
`static final int`	`COMMAND_SET_DEVICE_VOLUME = 25` This field is deprecated. Use `COMMAND_SET_DEVICE_VOLUME_WITH_FLAGS` instead.
`static final int`	`COMMAND_SET_DEVICE_VOLUME_WITH_FLAGS = 33` Command to set the device volume with volume flags.
`static final int`	`COMMAND_SET_MEDIA_ITEM = 31` Command to set a `MediaItem`.
`static final int`	`COMMAND_SET_MEDIA_ITEMS_METADATA = 19` This field is deprecated. Use `COMMAND_SET_PLAYLIST_METADATA` instead.
`static final int`	`COMMAND_SET_PLAYLIST_METADATA = 19` Command to set the playlist metadata.
`static final int`	`COMMAND_SET_REPEAT_MODE = 15` Command to set the repeat mode.
`static final int`	`COMMAND_SET_SHUFFLE_MODE = 14` Command to enable shuffling.
`static final int`	`COMMAND_SET_SPEED_AND_PITCH = 13` Command to set the playback speed and pitch.
`static final int`	`COMMAND_SET_TRACK_SELECTION_PARAMETERS = 29` Command to set the player's track selection parameters.
`static final int`	`COMMAND_SET_VIDEO_SURFACE = 27` Command to set and clear the surface on which to render the video.
`static final int`	`COMMAND_SET_VOLUME = 24` Command to set the player volume.
`static final int`	`COMMAND_STOP = 3` Command to stop playback.
`static final int`	`DISCONTINUITY_REASON_AUTO_TRANSITION = 0` Automatic playback transition from one period in the timeline to the next.
`static final int`	`DISCONTINUITY_REASON_INTERNAL = 5` Discontinuity introduced internally (e.g. by the source).
`static final int`	`DISCONTINUITY_REASON_REMOVE = 4` Discontinuity caused by the removal of the current period from the `Timeline`.
`static final int`	`DISCONTINUITY_REASON_SEEK = 1` Seek within the current period or to another period.
`static final int`	`DISCONTINUITY_REASON_SEEK_ADJUSTMENT = 2` Seek adjustment due to being unable to seek to the requested position or because the seek was permitted to be inexact.
`static final int`	`DISCONTINUITY_REASON_SILENCE_SKIP = 6` Discontinuity introduced by a skipped silence.
`static final int`	`DISCONTINUITY_REASON_SKIP = 3` Discontinuity introduced by a skipped period (for instance a skipped ad).
`static final int`	`EVENT_AUDIO_ATTRIBUTES_CHANGED = 20` `getAudioAttributes` changed.
`static final int`	`EVENT_AUDIO_SESSION_ID = 21` The audio session id was set.
`static final int`	`EVENT_AVAILABLE_COMMANDS_CHANGED = 13` `isCommandAvailable` changed for at least one `Command`.
`static final int`	`EVENT_CUES = 27` `getCurrentCues` changed.
`static final int`	`EVENT_DEVICE_INFO_CHANGED = 29` `getDeviceInfo` changed.
`static final int`	`EVENT_DEVICE_VOLUME_CHANGED = 30` `getDeviceVolume` changed.
`static final int`	`EVENT_IS_LOADING_CHANGED = 3` `isLoading` ()} changed.
`static final int`	`EVENT_IS_PLAYING_CHANGED = 7` `isPlaying` changed.
`static final int`	`EVENT_MAX_SEEK_TO_PREVIOUS_POSITION_CHANGED = 18` `getMaxSeekToPreviousPosition` changed.
`static final int`	`EVENT_MEDIA_ITEM_TRANSITION = 1` `getCurrentMediaItem` changed or the player started repeating the current item.
`static final int`	`EVENT_MEDIA_METADATA_CHANGED = 14` `getMediaMetadata` changed.
`static final int`	`EVENT_METADATA = 28` Metadata associated with the current playback time changed.
`static final int`	`EVENT_PLAYBACK_PARAMETERS_CHANGED = 12` `getPlaybackParameters` changed.
`static final int`	`EVENT_PLAYBACK_STATE_CHANGED = 4` `getPlaybackState` changed.
`static final int`	`EVENT_PLAYBACK_SUPPRESSION_REASON_CHANGED = 6` `getPlaybackSuppressionReason` changed.
`static final int`	`EVENT_PLAYER_ERROR = 10` `getPlayerError` changed.
`static final int`	`EVENT_PLAYLIST_METADATA_CHANGED = 15` `getPlaylistMetadata` changed.
`static final int`	`EVENT_PLAY_WHEN_READY_CHANGED = 5` `getPlayWhenReady` changed.
`static final int`	`EVENT_POSITION_DISCONTINUITY = 11` A position discontinuity occurred.
`static final int`	`EVENT_RENDERED_FIRST_FRAME = 26` A frame is rendered for the first time since setting the surface, or since the renderer was reset, or since the stream being rendered was changed.
`static final int`	`EVENT_REPEAT_MODE_CHANGED = 8` `getRepeatMode` changed.
`static final int`	`EVENT_SEEK_BACK_INCREMENT_CHANGED = 16` `getSeekBackIncrement` changed.
`static final int`	`EVENT_SEEK_FORWARD_INCREMENT_CHANGED = 17` `getSeekForwardIncrement` changed.
`static final int`	`EVENT_SHUFFLE_MODE_ENABLED_CHANGED = 9` `getShuffleModeEnabled` changed.
`static final int`	`EVENT_SKIP_SILENCE_ENABLED_CHANGED = 23` Skipping silences in the audio stream is enabled or disabled.
`static final int`	`EVENT_SURFACE_SIZE_CHANGED = 24` The size of the surface onto which the video is being rendered changed.
`static final int`	`EVENT_TIMELINE_CHANGED = 0` `getCurrentTimeline` changed.
`static final int`	`EVENT_TRACKS_CHANGED = 2` `getCurrentTracks` changed.
`static final int`	`EVENT_TRACK_SELECTION_PARAMETERS_CHANGED = 19` `getTrackSelectionParameters` changed.
`static final int`	`EVENT_VIDEO_SIZE_CHANGED = 25` `getVideoSize` changed.
`static final int`	`EVENT_VOLUME_CHANGED = 22` `getVolume` changed.
`static final int`	`MEDIA_ITEM_TRANSITION_REASON_AUTO = 1` Playback has automatically transitioned to the next media item.
`static final int`	`MEDIA_ITEM_TRANSITION_REASON_PLAYLIST_CHANGED = 3` The current media item has changed because of a change in the playlist.
`static final int`	`MEDIA_ITEM_TRANSITION_REASON_REPEAT = 0` The media item has been repeated.
`static final int`	`MEDIA_ITEM_TRANSITION_REASON_SEEK = 2` A seek to another media item has occurred.
`static final int`	`PLAYBACK_SUPPRESSION_REASON_NONE = 0` Playback is not suppressed.
`static final int`	`PLAYBACK_SUPPRESSION_REASON_TRANSIENT_AUDIO_FOCUS_LOSS = 1` Playback is suppressed due to transient audio focus loss.
`static final int`	`PLAYBACK_SUPPRESSION_REASON_UNSUITABLE_AUDIO_OUTPUT = 3` Playback is suppressed due to attempt to play on an unsuitable audio output (e.g. attempt to play on built-in speaker on a Wear OS device).
`static final int`	`PLAYBACK_SUPPRESSION_REASON_UNSUITABLE_AUDIO_ROUTE = 2` This field is deprecated. Use `PLAYBACK_SUPPRESSION_REASON_UNSUITABLE_AUDIO_OUTPUT` instead.
`static final int`	`PLAY_WHEN_READY_CHANGE_REASON_AUDIO_BECOMING_NOISY = 3` Playback has been paused to avoid becoming noisy.
`static final int`	`PLAY_WHEN_READY_CHANGE_REASON_AUDIO_FOCUS_LOSS = 2` Playback has been paused because of a loss of audio focus.
`static final int`	`PLAY_WHEN_READY_CHANGE_REASON_END_OF_MEDIA_ITEM = 5` Playback has been paused at the end of a media item.
`static final int`	`PLAY_WHEN_READY_CHANGE_REASON_REMOTE = 4` Playback has been started or paused because of a remote change.
`static final int`	`PLAY_WHEN_READY_CHANGE_REASON_SUPPRESSED_TOO_LONG = 6` Playback has been paused because playback has been `suppressed` too long.
`static final int`	`PLAY_WHEN_READY_CHANGE_REASON_USER_REQUEST = 1` Playback has been started or paused by a call to `setPlayWhenReady`.
`static final int`	`REPEAT_MODE_ALL = 2` Repeats the entire timeline infinitely.
`static final int`	`REPEAT_MODE_OFF = 0` Normal playback without repetition.
`static final int`	`REPEAT_MODE_ONE = 1` Repeats the currently playing `MediaItem` infinitely during ongoing playback.
`static final int`	`STATE_BUFFERING = 2` The player is not able to immediately play the media, but is doing work toward being able to do so.
`static final int`	`STATE_ENDED = 4` The player has finished playing the media.
`static final int`	`STATE_IDLE = 1` The player is idle, meaning it holds only limited resources.
`static final int`	`STATE_READY = 3` The player is able to immediately play from its current position.
`static final int`	`TIMELINE_CHANGE_REASON_PLAYLIST_CHANGED = 0` Timeline changed as a result of a change of the playlist items or the order of the items.
`static final int`	`TIMELINE_CHANGE_REASON_SOURCE_UPDATE = 1` Timeline changed as a result of a source update (e.g. result of a dynamic update by the played media).

Constants

KEY_MEDIA_NOTIFICATION_CONTROLLER_FLAG

@UnstableApi
public static final String KEY_MEDIA_NOTIFICATION_CONTROLLER_FLAG = "androidx.media3.session.MediaNotificationManager"

Key to mark the connection hints of the media notification controller.

For a controller to be recognized by the session as the media notification controller, this key needs to be used to set a boolean flag in the connection hints to true. Only an internal controller that has the same package name as the session can be used as a media notification controller.

When using a session within a MediaSessionService or MediaLibraryService, the service connects a media notification controller automatically. Apps can do this for standalone session to configure the platform session in the same way.

RELEASE_UNBIND_TIMEOUT_MS

@UnstableApi
public static final long RELEASE_UNBIND_TIMEOUT_MS = 30000

The timeout for handling pending commands after calling release. If the timeout is reached, the controller is unbound from the session service even if commands are still pending.

Public methods

addListener

public final void addListener(Player.Listener listener)

Registers a listener to receive all events from the player.

The listener's methods will be called on the thread associated with getApplicationLooper.

This method can be called from any thread.

Parameters
`Player.Listener listener`	The listener to register.

addMediaItem

public final void addMediaItem(MediaItem mediaItem)

Adds a media item to the end of the playlist.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`MediaItem mediaItem`	The `MediaItem` to add.

addMediaItem

public final void addMediaItem(int index, MediaItem mediaItem)

Adds a media item at the given index of the playlist.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`int index`	The index at which to add the media item. If the index is larger than the size of the playlist, the media item is added to the end of the playlist.
`MediaItem mediaItem`	The `MediaItem` to add.

addMediaItems

public final void addMediaItems(List<MediaItem> mediaItems)

Adds a list of media items to the end of the playlist.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`List<MediaItem> mediaItems`	The `media items` to add.

addMediaItems

public final void addMediaItems(int index, List<MediaItem> mediaItems)

Adds a list of media items at the given index of the playlist.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`int index`	The index at which to add the media items. If the index is larger than the size of the playlist, the media items are added to the end of the playlist.
`List<MediaItem> mediaItems`	The `media items` to add.

canAdvertiseSession

public final boolean canAdvertiseSession()

Returns whether the player can be used to advertise a media session.

The MediaController returns false.

clearMediaItems

public final void clearMediaItems()

Clears the playlist.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

clearVideoSurface

public final void clearVideoSurface()

Clears any Surface, SurfaceHolder, SurfaceView or TextureView currently set on the player.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

clearVideoSurface

public final void clearVideoSurface(@Nullable Surface surface)

Clears the Surface onto which video is being rendered if it matches the one passed. Else does nothing.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
`@Nullable Surface surface`	The surface to clear.

clearVideoSurfaceHolder

public final void clearVideoSurfaceHolder(@Nullable SurfaceHolder surfaceHolder)

Clears the SurfaceHolder that holds the Surface onto which video is being rendered if it matches the one passed. Else does nothing.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
`@Nullable SurfaceHolder surfaceHolder`	The surface holder to clear.

clearVideoSurfaceView

public final void clearVideoSurfaceView(@Nullable SurfaceView surfaceView)

Clears the SurfaceView onto which video is being rendered if it matches the one passed. Else does nothing.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
`@Nullable SurfaceView surfaceView`	The texture view to clear.

clearVideoTextureView

public final void clearVideoTextureView(@Nullable TextureView textureView)

Clears the TextureView onto which video is being rendered if it matches the one passed. Else does nothing.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
`@Nullable TextureView textureView`	The texture view to clear.

decreaseDeviceVolume

public final void decreaseDeviceVolume()

decreaseDeviceVolume

public final void decreaseDeviceVolume(@C.VolumeFlags int flags)

Decreases the volume of the device.

The getDeviceVolume device volume cannot be decreased below minVolume.

Note that this method affects the device volume. To change the volume of the current stream only, use setVolume.

This method must only be called if COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS is available.

Parameters
`@C.VolumeFlags int flags`	Either 0 or a bitwise combination of one or more `C.VolumeFlags`.

getApplicationLooper

public final Looper getApplicationLooper()

Returns the Looper associated with the application thread that's used to access the player and on which player events are received.

This method can be called from any thread.

getAudioAttributes

public final AudioAttributes getAudioAttributes()

Returns the attributes for audio playback.

This method must only be called if COMMAND_GET_AUDIO_ATTRIBUTES is available.

See also
`onAudioAttributesChanged`

getAvailableCommands

public final Player.Commands getAvailableCommands()

Returns the player's currently available Commands.

The returned Commands are not updated when available commands change. Use onAvailableCommandsChanged to get an update when the available commands change.

Returns
`Player.Commands`	The currently available `Commands`.

See also
`onAvailableCommandsChanged`

getAvailableSessionCommands

public final SessionCommands getAvailableSessionCommands()

Returns the current available session commands from onAvailableSessionCommandsChanged, or EMPTY if it is not connected.

Returns
`SessionCommands`	The available session commands.

getBufferedPercentage

public final @IntRange(from = 0, to = 100) int getBufferedPercentage()

Returns an estimate of the percentage in the current content or ad up to which data is buffered, or 0 if no estimate is available.

getBufferedPosition

public final long getBufferedPosition()

Returns an estimate of the position in the current content or ad up to which data is buffered, in milliseconds.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

getCommandButtonsForMediaItem

@UnstableApi
public final ImmutableList<CommandButton> getCommandButtonsForMediaItem(MediaItem mediaItem)

Returns the command buttons that are supported for the given MediaItem.

Parameters
`MediaItem mediaItem`	The media item for which to get command buttons.

Returns
`ImmutableList<CommandButton>`	The `command buttons` that are supported for the given media item.

getConnectedToken

public final @Nullable SessionToken getConnectedToken()

Returns the SessionToken of the connected session, or null if it is not connected.

This may differ from the SessionToken from the constructor. For example, if the controller is created with the token for MediaSessionService, this will return a token for the MediaSession in the service.

getContentBufferedPosition

public final long getContentBufferedPosition()

If #isPlayingAd() returns true}, returns an estimate of the content position in the current content up to which data is buffered, in milliseconds. If there is no ad playing, the returned position is the same as that returned by #getBufferedPosition().

This method must only be called if #COMMAND_GET_CURRENT_MEDIA_ITEM is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it's the same as getBufferedPosition because content buffered position isn't available.

getContentDuration

public final long getContentDuration()

If #isPlayingAd() returns true}, returns the duration of the current content in milliseconds, or C#TIME_UNSET if the duration is not known. If there is no ad playing, the returned duration is the same as that returned by #getDuration().

This method must only be called if #COMMAND_GET_CURRENT_MEDIA_ITEM is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it's the same as getDuration to match the behavior with getContentPosition and getContentBufferedPosition.

getContentPosition

public final long getContentPosition()

If #isPlayingAd() returns true}, returns the content position that will be played once all ads in the ad group have finished playing, in milliseconds. If there is no ad playing, the returned position is the same as that returned by #getCurrentPosition().

This method must only be called if #COMMAND_GET_CURRENT_MEDIA_ITEM is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it's the same as getCurrentPosition because content position isn't available.

getCurrentAdGroupIndex

public final int getCurrentAdGroupIndex()

If isPlayingAd returns true, returns the index of the ad group in the period currently being played. Returns INDEX_UNSET otherwise.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

getCurrentAdIndexInAdGroup

public final int getCurrentAdIndexInAdGroup()

If isPlayingAd returns true, returns the index of the ad in its ad group. Returns INDEX_UNSET otherwise.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

getCurrentCues

public final CueGroup getCurrentCues()

Returns the current CueGroup.

This method must only be called if COMMAND_GET_TEXT is available.

See also
`onCues`

getCurrentLiveOffset

public final long getCurrentLiveOffset()

Returns the offset of the current playback position from the live edge in milliseconds, or TIME_UNSET if the current MediaItemisn't live or the offset is unknown.

The offset is calculated as currentTime - playbackPosition, so should usually be positive.

Note that this offset may rely on an accurate local time, so this method may return an incorrect value if the difference between system clock and server clock is unknown.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

getCurrentManifest

@UnstableApi
public final @Nullable Object getCurrentManifest()

Returns null.

getCurrentMediaItem

public final @Nullable MediaItem getCurrentMediaItem()

Returns the currently playing MediaItem. May be null if the timeline is empty.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

See also
`onMediaItemTransition`

getCurrentMediaItemIndex

public final int getCurrentMediaItemIndex()

Returns the index of the current MediaItem in the timeline, or the prospective index if the current timeline is empty.

This method must only be called if COMMAND_GET_TIMELINE is available.

getCurrentPeriodIndex

public final int getCurrentPeriodIndex()

Returns the index of the period currently being played.

This method must only be called if COMMAND_GET_TIMELINE is available.

getCurrentPosition

public final long getCurrentPosition()

Returns the playback position in the current content or ad, in milliseconds, or the prospective position in milliseconds if the current timeline is empty.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

getCurrentTimeline

public final Timeline getCurrentTimeline()

Returns the current . Never null, but may be empty.

This method must only be called if #COMMAND_GET_TIMELINE is * #getAvailableCommands() available.

Caveat: Some methods of the Timeline such as getPeriodByUid, getIndexOfPeriod, and getUidOfPeriod will throw UnsupportedOperationException because of the limitation of restoring the instance sent from session as described in fromBundle.

getCurrentTracks

public final Tracks getCurrentTracks()

Returns the current tracks.

This method must only be called if COMMAND_GET_TRACKS is available.

See also
`onTracksChanged`

getCurrentWindowIndex

@UnstableApi
public final int getCurrentWindowIndex()

getCustomLayout

@UnstableApi
public final ImmutableList<CommandButton> getCustomLayout()

Returns the custom layout.

This method will be deprecated, prefer to use getMediaButtonPreferences instead.

After being connected, a change of the custom layout is reported with onCustomLayoutChanged.

Note that the enabled flag is set to false if the available commands do not allow to use a button.

Returns
`ImmutableList<CommandButton>`	The custom layout.

getDeviceInfo

public final DeviceInfo getDeviceInfo()

Gets the device information.

getDeviceVolume

public final @IntRange(from = 0) int getDeviceVolume()

Gets the current volume of the device.

For devices with local playback, the volume returned by this method varies according to the current stream type. The stream type is determined by usage which can be converted to stream type with getStreamTypeForAudioUsage.

For devices with remote playback, the volume of the remote device is returned.

Note that this method returns the volume of the device. To check the current stream volume, use getVolume.

This method must only be called if COMMAND_GET_DEVICE_VOLUME is available.

See also
`onDeviceVolumeChanged`

getDuration

public final long getDuration()

Returns the duration of the current content or ad in milliseconds, or TIME_UNSET if the duration is not known.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

getMaxSeekToPreviousPosition

public final long getMaxSeekToPreviousPosition()

Returns the maximum position for which #seekToPrevious() seeks to the previous * , in milliseconds.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it always returns 0.

getMediaButtonPreferences

@UnstableApi
public final ImmutableList<CommandButton> getMediaButtonPreferences()

Returns the media button preferences.

After being connected, a change of the media button preferences is reported with onMediaButtonPreferencesChanged.

Note that the enabled flag is set to false if the available commands do not allow to use a button.

Returns
`ImmutableList<CommandButton>`	The media button preferences.

getMediaItemAt

public final MediaItem getMediaItemAt(int index)

Returns the MediaItem at the given index.

This method must only be called if COMMAND_GET_TIMELINE is available.

getMediaItemCount

public final int getMediaItemCount()

Returns the number of media items in the playlist.

This method must only be called if COMMAND_GET_TIMELINE is available.

getMediaMetadata

public final MediaMetadata getMediaMetadata()

Returns the current combined MediaMetadata, or EMPTY if not supported.

This MediaMetadata is a combination of the MediaItem metadata, the static metadata in the media's Format, and any timed metadata that has been parsed from the media and output via onMetadata. If a field is populated in the mediaMetadata, it will be prioritised above the same field coming from static or timed metadata.

This method must only be called if COMMAND_GET_METADATA is available.

See also
`onMediaMetadataChanged`

getNextMediaItemIndex

public final int getNextMediaItemIndex()

Returns the index of the that will be played if * #seekToNextMediaItem() is called, which may depend on the current repeat mode and whether shuffle mode is enabled. Returns C#INDEX_UNSET if #hasNextMediaItem() is *false.

Note: When the repeat mode is #REPEAT_MODE_ONE, this method behaves the same as when the current repeat mode is #REPEAT_MODE_OFF. See #REPEAT_MODE_ONE for more details.

This method must only be called if #COMMAND_GET_TIMELINE is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, this will always return INDEX_UNSET even when hasNextMediaItem is true.

getNextWindowIndex

@UnstableApi
public final int getNextWindowIndex()

getPlayWhenReady

public final boolean getPlayWhenReady()

Whether playback will proceed when getPlaybackState == STATE_READY.

Returns
`boolean`	Whether playback will proceed when ready.

See also
`onPlayWhenReadyChanged`

getPlaybackParameters

public final PlaybackParameters getPlaybackParameters()

Returns the currently active playback parameters.

See also
`onPlaybackParametersChanged`

getPlaybackState

@Player.State
public final int getPlaybackState()

Returns the current playback state of the player.

Returns
`int`	The current `playback state`.

See also
`onPlaybackStateChanged`

getPlaybackSuppressionReason

@Player.PlaybackSuppressionReason
public final int getPlaybackSuppressionReason()

Returns the reason why playback is suppressed even though getPlayWhenReady is true, or PLAYBACK_SUPPRESSION_REASON_NONE if playback is not suppressed.

Returns
`int`	The current `PlaybackSuppressionReason`.

See also
`onPlaybackSuppressionReasonChanged`

getPlayerError

public final @Nullable PlaybackException getPlayerError()

Returns the error that caused playback to fail. This is the same error that will have been reported via onPlayerError at the time of failure. It can be queried using this method until the player is re-prepared.

Note that this method will always return null if getPlaybackState is not STATE_IDLE.

Returns
`@Nullable PlaybackException`	The error, or `null`.

See also
`onPlayerError`

getPlaylistMetadata

public final MediaMetadata getPlaylistMetadata()

Returns the playlist MediaMetadata, as set by setPlaylistMetadata, or EMPTY if not supported.

This method must only be called if COMMAND_GET_METADATA is available.

See also
`onPlaylistMetadataChanged`

getPreviousMediaItemIndex

public final int getPreviousMediaItemIndex()

Returns the index of the that will be played if * #seekToPreviousMediaItem() is called, which may depend on the current repeat mode and whether shuffle mode is enabled. Returns C#INDEX_UNSET if #hasPreviousMediaItem() is false}.

Note: When the repeat mode is #REPEAT_MODE_ONE, this method behaves the same as when the current repeat mode is #REPEAT_MODE_OFF. See #REPEAT_MODE_ONE for more details.

This method must only be called if #COMMAND_GET_TIMELINE is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, this will always return INDEX_UNSET even when hasPreviousMediaItem is true.

getPreviousWindowIndex

@UnstableApi
public final int getPreviousWindowIndex()

getRepeatMode

@Player.RepeatMode
public final int getRepeatMode()

Returns the current RepeatMode used for playback.

Returns
`int`	The current repeat mode.

See also
`onRepeatModeChanged`

getSeekBackIncrement

public final long getSeekBackIncrement()

Returns the #seekBack() increment.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it returns {code 0}.

getSeekForwardIncrement

public final long getSeekForwardIncrement()

Returns the #seekForward() increment.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it returns {code 0}.

getSessionActivity

public final @Nullable PendingIntent getSessionActivity()

Returns an intent for launching UI associated with the session if exists, or null.

getSessionExtras

@UnstableApi
public final Bundle getSessionExtras()

Returns the session extras.

After being connected, onExtrasChanged is called when the extras on the session are set.

Returns
`Bundle`	The session extras.

getShuffleModeEnabled

public final boolean getShuffleModeEnabled()

Returns whether shuffling of media items is enabled.

See also
`onShuffleModeEnabledChanged`

getSurfaceSize

@UnstableApi
public final Size getSurfaceSize()

Gets the size of the surface on which the video is rendered.

See also
`onSurfaceSizeChanged`

getTotalBufferedDuration

public final long getTotalBufferedDuration()

Returns an estimate of the total buffered duration from the current position, in milliseconds. This includes pre-buffered data for subsequent ads and media items.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

getTrackSelectionParameters

public final TrackSelectionParameters getTrackSelectionParameters()

Returns the parameters constraining the track selection.

See also
`onTrackSelectionParametersChanged`	}

getVideoSize

public final VideoSize getVideoSize()

Gets the size of the video.

The video's width and height are 0 if there is no supported video track or its size has not been determined yet.

See also
`onVideoSizeChanged`

getVolume

public final @FloatRange(from = 0, to = 1) float getVolume()

Returns the audio volume, with 0 being silence and 1 being unity gain (signal unchanged).

This method must only be called if COMMAND_GET_VOLUME is available.

Returns
`@FloatRange(from = 0, to = 1) float`	The linear gain applied to all audio channels.

See also
`onVolumeChanged`

hasNext

@UnstableApi
public final boolean hasNext()

hasNextMediaItem

public final boolean hasNextMediaItem()

Returns whether a next MediaItem exists, which may depend on the current repeat mode and whether shuffle mode is enabled.

Note: When the repeat mode is REPEAT_MODE_ONE, this method behaves the same as when the current repeat mode is REPEAT_MODE_OFF. See REPEAT_MODE_ONE for more details.

This method must only be called if COMMAND_GET_TIMELINE is available.

hasNextWindow

@UnstableApi
public final boolean hasNextWindow()

hasPreviousMediaItem

public final boolean hasPreviousMediaItem()

Returns whether a previous media item exists, which may depend on the current repeat mode and whether shuffle mode is enabled.

Note: When the repeat mode is REPEAT_MODE_ONE, this method behaves the same as when the current repeat mode is REPEAT_MODE_OFF. See REPEAT_MODE_ONE for more details.

This method must only be called if COMMAND_GET_TIMELINE is available.

increaseDeviceVolume

public final void increaseDeviceVolume()

increaseDeviceVolume

public final void increaseDeviceVolume(@C.VolumeFlags int flags)

Increases the volume of the device.

The getDeviceVolume device volume cannot be increased above maxVolume, if defined.

Note that this method affects the device volume. To change the volume of the current stream only, use setVolume.

This method must only be called if COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS is available.

Parameters
`@C.VolumeFlags int flags`	Either 0 or a bitwise combination of one or more `C.VolumeFlags`.

isCommandAvailable

public final boolean isCommandAvailable(@Player.Command int command)

Returns whether the provided Command is available.

This method does not execute the command.

Parameters
`@Player.Command int command`	A `Command`.

Returns
`boolean`	Whether the `Command` is available.

See also
`onAvailableCommandsChanged`

isConnected

public final boolean isConnected()

Returns whether this controller is connected to a MediaSession or not.

isCurrentMediaItemDynamic

public final boolean isCurrentMediaItemDynamic()

Returns whether the current MediaItem is dynamic (may change when the Timeline is updated), or false if the Timeline is empty.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

See also
`isDynamic`

isCurrentMediaItemLive

public final boolean isCurrentMediaItemLive()

Returns whether the current MediaItem is live, or false if the Timeline is empty.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

See also
`isLive`

isCurrentMediaItemSeekable

public final boolean isCurrentMediaItemSeekable()

Returns whether the current MediaItem is seekable, or false if the is empty.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

See also
`isSeekable`

isCurrentWindowDynamic

@UnstableApi
public final boolean isCurrentWindowDynamic()

isCurrentWindowLive

@UnstableApi
public final boolean isCurrentWindowLive()

isCurrentWindowSeekable

@UnstableApi
public final boolean isCurrentWindowSeekable()

isDeviceMuted

public final boolean isDeviceMuted()

Gets whether the device is muted or not.

Note that this method returns the mute state of the device. To check if the current stream is muted, use getVolume() == 0.

This method must only be called if COMMAND_GET_DEVICE_VOLUME is available.

See also
`onDeviceVolumeChanged`

isLoading

public final boolean isLoading()

Whether the player is currently loading the source.

Returns
`boolean`	Whether the player is currently loading the source.

See also
`onIsLoadingChanged`

isPlaying

public final boolean isPlaying()

Returns whether the player is playing, i.e. getCurrentPosition is advancing.

If false, then at least one of the following is true:

The playback state is not ready.
There is no intention to play.
Playback is suppressed for other reasons.

Returns
`boolean`	Whether the player is playing.

See also
`onIsPlayingChanged`

isPlayingAd

public final boolean isPlayingAd()

Returns whether the player is currently playing an ad.

This method must only be called if COMMAND_GET_CURRENT_MEDIA_ITEM is available.

isSessionCommandAvailable

public final boolean isSessionCommandAvailable(
    @SessionCommand.CommandCode int sessionCommandCode
)

Returns whether the SessionCommand.CommandCode is available. The sessionCommandCode must not be COMMAND_CODE_CUSTOM. Use isSessionCommandAvailable for custom commands.

isSessionCommandAvailable

public final boolean isSessionCommandAvailable(SessionCommand sessionCommand)

Returns whether the SessionCommand is available.

moveMediaItem

public final void moveMediaItem(int currentIndex, int newIndex)

Moves the media item at the current index to the new index.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`int currentIndex`	The current index of the media item to move. If the index is larger than the size of the playlist, the request is ignored.
`int newIndex`	The new index of the media item. If the new index is larger than the size of the playlist the item is moved to the end of the playlist.

moveMediaItems

public final void moveMediaItems(int fromIndex, int toIndex, int newIndex)

Moves the media item range to the new index.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`int fromIndex`	The start of the range to move. If the index is larger than the size of the playlist, the request is ignored.
`int toIndex`	The first item not to be included in the range (exclusive). If the index is larger than the size of the playlist, items up to the end of the playlist are moved.
`int newIndex`	The new index of the first media item of the range. If the new index is larger than the size of the remaining playlist after removing the range, the range is moved to the end of the playlist.

@UnstableApi
public final void next()

pause

public final void pause()

Pauses playback. Equivalent to setPlayWhenReady(false).

This method must only be called if COMMAND_PLAY_PAUSE is available.

play

public final void play()

Resumes playback as soon as getPlaybackState == STATE_READY. Equivalent to setPlayWhenReady(true).

This method must only be called if COMMAND_PLAY_PAUSE is available.

prepare

public final void prepare()

Prepares the player.

This method must only be called if COMMAND_PREPARE is available.

This will move the player out of idle state and the player will start loading media and acquire resources needed for playback.

release

public final void release()

Releases the connection between MediaController and MediaSession. This method must be called when the controller is no longer required. The controller must not be used after calling this method.

This method does not call release of the underlying player in the session.

releaseFuture

public static void releaseFuture(Future<MediaController> controllerFuture)

Releases the future controller returned by buildAsync. It makes sure that the controller is released by canceling the future if the future is not yet done.

Must be called on the application thread of the media controller.

removeListener

public final void removeListener(Player.Listener listener)

Unregister a listener registered through addListener. The listener will no longer receive events.

Parameters
`Player.Listener listener`	The listener to unregister.

removeMediaItem

public final void removeMediaItem(int index)

Removes the media item at the given index of the playlist.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`int index`	The index at which to remove the media item. If the index is larger than the size of the playlist, the request is ignored.

removeMediaItems

public final void removeMediaItems(int fromIndex, int toIndex)

Removes a range of media items from the playlist.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`int fromIndex`	The index at which to start removing media items. If the index is larger than the size of the playlist, the request is ignored.
`int toIndex`	The index of the first item to be kept (exclusive). If the index is larger than the size of the playlist, media items up to the end of the playlist are removed.

replaceMediaItem

public final void replaceMediaItem(int index, MediaItem mediaItem)

Replaces the media item at the given index of the playlist.

Implementations of this method may attempt to seamlessly continue playback if the currently playing media item is replaced with a compatible one (e.g. same URL, only metadata has changed).

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`int index`	The index at which to replace the media item. If the index is larger than the size of the playlist, the request is ignored.
`MediaItem mediaItem`	The new `MediaItem`.

replaceMediaItems

public final void replaceMediaItems(
    int fromIndex,
    int toIndex,
    List<MediaItem> mediaItems
)

Replaces the media items at the given range of the playlist.

Implementations of this method may attempt to seamlessly continue playback if the currently playing media item is replaced with a compatible one (e.g. same URL, only metadata has changed).

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Note that it is possible to replace a range with an arbitrary number of new items, so that the number of removed items defined by fromIndex and toIndex does not have to match the number of added items defined by mediaItems. As result, it may also change the index of subsequent items not touched by this operation.

Parameters
`int fromIndex`	The start of the range. If the index is larger than the size of the playlist, the request is ignored.
`int toIndex`	The first item not to be included in the range (exclusive). If the index is larger than the size of the playlist, items up to the end of the playlist are replaced.
`List<MediaItem> mediaItems`	The `media items` to replace the range with.

seekBack

public final void seekBack()

Seeks back in the current by #getSeekBackIncrement() milliseconds.

This method must only be called if #COMMAND_SEEK_BACK is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it calls android.support.v4.media.session.MediaControllerCompat.TransportControls.rewind().

seekForward

public final void seekForward()

Seeks forward in the current by #getSeekForwardIncrement() milliseconds.

This method must only be called if #COMMAND_SEEK_FORWARD is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it calls android.support.v4.media.session.MediaControllerCompat.TransportControls.fastForward().

seekTo

public final void seekTo(long positionMs)

Seeks to a position specified in milliseconds in the current MediaItem.

This method must only be called if COMMAND_SEEK_IN_CURRENT_MEDIA_ITEM is available.

Parameters
`long positionMs`	The seek position in the current `MediaItem`, or `TIME_UNSET` to seek to the media item's default position.

seekTo

public final void seekTo(int mediaItemIndex, long positionMs)

Seeks to a position specified in milliseconds in the specified MediaItem.

This method must only be called if COMMAND_SEEK_TO_MEDIA_ITEM is available.

Parameters
`int mediaItemIndex`	The index of the `MediaItem`. If the index is larger than the size of the playlist, the request is ignored.
`long positionMs`	The seek position in the specified `MediaItem`, or `TIME_UNSET` to seek to the media item's default position.

seekToDefaultPosition

public final void seekToDefaultPosition()

Seeks to the default position associated with the current MediaItem. The position can depend on the type of media being played. For live streams it will typically be the live edge. For other streams it will typically be the start.

This method must only be called if COMMAND_SEEK_TO_DEFAULT_POSITION is available.

seekToDefaultPosition

public final void seekToDefaultPosition(int mediaItemIndex)

Seeks to the default position associated with the specified MediaItem. The position can depend on the type of media being played. For live streams it will typically be the live edge. For other streams it will typically be the start.

This method must only be called if COMMAND_SEEK_TO_MEDIA_ITEM is available.

Parameters
`int mediaItemIndex`	The index of the `MediaItem` whose associated default position should be seeked to. If the index is larger than the size of the playlist, the request is ignored.

seekToNext

public final void seekToNext()

Seeks to a later position in the current or next (if available). More precisely:

If the timeline is empty or seeking is not possible, does nothing.
Otherwise, if #hasNextMediaItem() a next media item exists, seeks to the default position of the next .
Otherwise, if the current is #isCurrentMediaItemLive() live and has not ended, seeks to the live edge of the current .
Otherwise, does nothing.

This method must only be called if #COMMAND_SEEK_TO_NEXT is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it won't update the current media item index immediately because the previous media item index is unknown.

seekToNextMediaItem

public final void seekToNextMediaItem()

Seeks to the default position of the next , which may depend on the current repeat mode and whether shuffle mode is enabled. Does nothing if #hasNextMediaItem() is false}.

Note: When the repeat mode is #REPEAT_MODE_ONE, this method behaves the same as when the current repeat mode is #REPEAT_MODE_OFF. See #REPEAT_MODE_ONE for more details.

This method must only be called if #COMMAND_SEEK_TO_NEXT_MEDIA_ITEM is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it's the same as seekToNext.

seekToNextWindow

@UnstableApi
public final void seekToNextWindow()

seekToPrevious

public final void seekToPrevious()

Seeks to an earlier position in the current or previous (if available). More precisely:

If the timeline is empty or seeking is not possible, does nothing.
Otherwise, if the current is #isCurrentMediaItemLive() live and #isCurrentMediaItemSeekable() unseekable, then:
- If #hasPreviousMediaItem() a previous media item exists, seeks to the default position of the previous media item.
- Otherwise, does nothing.
Otherwise, if #hasPreviousMediaItem() a previous media item exists and the #getCurrentPosition() current position is less than * #getMaxSeekToPreviousPosition(), seeks to the default position of the previous * .
Otherwise, seeks to 0 in the current .

This method must only be called if #COMMAND_SEEK_TO_PREVIOUS is * #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it won't update the current media item index immediately because the previous media item index is unknown.

seekToPreviousMediaItem

public final void seekToPreviousMediaItem()

Seeks to the default position of the previous , which may depend on the current repeat mode and whether shuffle mode is enabled. Does nothing if * #hasPreviousMediaItem() is false}.

Note: When the repeat mode is #REPEAT_MODE_ONE, this method behaves the same as when the current repeat mode is #REPEAT_MODE_OFF. See #REPEAT_MODE_ONE for more details.

This method must only be called if #COMMAND_SEEK_TO_PREVIOUS_MEDIA_ITEM is #getAvailableCommands() available.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, it's the same as seekToPrevious.

seekToPreviousWindow

@UnstableApi
public final void seekToPreviousWindow()

sendCustomCommand

public final ListenableFuture<SessionResult> sendCustomCommand(SessionCommand command, Bundle args)

Sends a custom command to the session.

A command is not accepted if it is not a custom command or the command is not in the list of available session commands.

Interoperability: When connected to android.support.v4.media.session.MediaSessionCompat, resultCode will return the custom result code from the android.os.ResultReceiver#onReceiveResult(int, Bundle) instead of the standard result codes defined in the SessionResult.

Parameters
`SessionCommand command`	The custom command.
`Bundle args`	The additional arguments. May be empty.

Returns
`ListenableFuture<SessionResult>`	A `ListenableFuture` of `SessionResult` representing the pending completion.

sendCustomCommand

@UnstableApi
public final ListenableFuture<SessionResult> sendCustomCommand(
    SessionCommand command,
    MediaItem mediaItem,
    Bundle args
)

Sends a custom command to the session for the given media item.

Calling this method is equivalent to calling sendCustomCommand and including the media ID in the argument bundle with key EXTRA_KEY_MEDIA_ID.

A command is not accepted if it is not a custom command or the command is not in the list of available session commands.

Parameters
`SessionCommand command`	The custom command.
`MediaItem mediaItem`	The media item for which the command is sent.
`Bundle args`	The additional arguments. May be empty.

Returns
`ListenableFuture<SessionResult>`	A `ListenableFuture` of `SessionResult` representing the pending completion.

setAudioAttributes

public final void setAudioAttributes(
    AudioAttributes audioAttributes,
    boolean handleAudioFocus
)

Sets the attributes for audio playback, used by the underlying audio track. If not set, the default audio attributes will be used. They are suitable for general media playback.

Setting the audio attributes during playback may introduce a short gap in audio output as the audio track is recreated. A new audio session id will also be generated.

If tunneling is enabled by the track selector, the specified audio attributes will be ignored, but they will take effect if audio is later played without tunneling.

If the device is running a build before platform API version 21, audio attributes cannot be set directly on the underlying audio track. In this case, the usage will be mapped onto an equivalent stream type using getStreamTypeForAudioUsage.

If audio focus should be handled, the usage must be USAGE_MEDIA or USAGE_GAME. Other usages will throw an .

This method must only be called if COMMAND_SET_AUDIO_ATTRIBUTES is available.

Parameters
`AudioAttributes audioAttributes`	The attributes to use for audio playback.
`boolean handleAudioFocus`	True if the player should handle audio focus, false otherwise.

setDeviceMuted

public final void setDeviceMuted(boolean muted)

setDeviceMuted

public final void setDeviceMuted(boolean muted, @C.VolumeFlags int flags)

Sets the mute state of the device.

Note that this method affects the device volume. To mute just the current stream, use setVolume(0) instead.

This method must only be called if COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS is available.

Parameters
`boolean muted`	Whether to set the device to be muted or not
`@C.VolumeFlags int flags`	Either 0 or a bitwise combination of one or more `C.VolumeFlags`.

setDeviceVolume

public final void setDeviceVolume(@IntRange(from = 0) int volume)

setDeviceVolume

public final void setDeviceVolume(@IntRange(from = 0) int volume, @C.VolumeFlags int flags)

Sets the volume of the device with volume flags.

Note that this method affects the device volume. To change the volume of the current stream only, use setVolume.

This method must only be called if COMMAND_SET_DEVICE_VOLUME_WITH_FLAGS is available.

Parameters
`@IntRange(from = 0) int volume`	The volume to set.
`@C.VolumeFlags int flags`	Either 0 or a bitwise combination of one or more `C.VolumeFlags`.

setMediaItem

public final void setMediaItem(MediaItem mediaItem)

Clears the playlist, adds the specified MediaItem and resets the position to the default position.

To replace a media item (possibly seamlessly) without clearing the playlist, use replaceMediaItem.

This method must only be called if COMMAND_SET_MEDIA_ITEM is available.

Parameters
`MediaItem mediaItem`	The new `MediaItem`.

setMediaItem

public final void setMediaItem(MediaItem mediaItem, boolean resetPosition)

Clears the playlist and adds the specified MediaItem.

To replace a media item (possibly seamlessly) without clearing the playlist, use replaceMediaItem.

This method must only be called if COMMAND_SET_MEDIA_ITEM is available.

Parameters
`MediaItem mediaItem`	The new `MediaItem`.
`boolean resetPosition`	Whether the playback position should be reset to the default position. If false, playback will start from the position defined by `getCurrentMediaItemIndex` and `getCurrentPosition`.

setMediaItem

public final void setMediaItem(MediaItem mediaItem, long startPositionMs)

Clears the playlist and adds the specified MediaItem.

To replace a media item (possibly seamlessly) without clearing the playlist, use replaceMediaItem.

This method must only be called if COMMAND_SET_MEDIA_ITEM is available.

Parameters
`MediaItem mediaItem`	The new `MediaItem`.
`long startPositionMs`	The position in milliseconds to start playback from. If `TIME_UNSET` is passed, the default position of the given `MediaItem` is used.

setMediaItems

public final void setMediaItems(List<MediaItem> mediaItems)

Clears the playlist, adds the specified media items and resets the position to the default position.

To replace a span of media items (possibly seamlessly) without clearing the playlist, use replaceMediaItems.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`List<MediaItem> mediaItems`	The new `media items`.

setMediaItems

public final void setMediaItems(List<MediaItem> mediaItems, boolean resetPosition)

Clears the playlist and adds the specified media items.

To replace a span of media items (possibly seamlessly) without clearing the playlist, use replaceMediaItems.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`List<MediaItem> mediaItems`	The new `media items`.
`boolean resetPosition`	Whether the playback position should be reset to the default position in the first `Timeline.Window`. If false, playback will start from the position defined by `getCurrentMediaItemIndex` and `getCurrentPosition`.

setMediaItems

public final void setMediaItems(
    List<MediaItem> mediaItems,
    int startIndex,
    long startPositionMs
)

Clears the playlist and adds the specified media items.

To replace a span of media items (possibly seamlessly) without clearing the playlist, use replaceMediaItems.

This method must only be called if COMMAND_CHANGE_MEDIA_ITEMS is available.

Parameters
`List<MediaItem> mediaItems`	The new `media items`.
`int startIndex`	The `MediaItem` index to start playback from. If `INDEX_UNSET` is passed, the current position is not reset.
`long startPositionMs`	The position in milliseconds to start playback from. If `TIME_UNSET` is passed, the default position of the given `MediaItem` is used. In any case, if `startIndex` is set to `INDEX_UNSET`, this parameter is ignored and the position is not reset at all.

Throws
`androidx.media3.common.IllegalSeekPositionException`	If the provided `startIndex` is not within the bounds of the list of media items.

setPlayWhenReady

public final void setPlayWhenReady(boolean playWhenReady)

Sets whether playback should proceed when getPlaybackState == STATE_READY.

If the player is already in the ready state then this method pauses and resumes playback.

This method must only be called if COMMAND_PLAY_PAUSE is available.

Parameters
`boolean playWhenReady`	Whether playback should proceed when ready.

setPlaybackParameters

public final void setPlaybackParameters(PlaybackParameters playbackParameters)

Attempts to set the playback parameters. Passing DEFAULT resets the player to the default, which means there is no speed or pitch adjustment.

Playback parameters changes may cause the player to buffer. onPlaybackParametersChanged will be called whenever the currently active playback parameters change.

This method must only be called if COMMAND_SET_SPEED_AND_PITCH is available.

Parameters
`PlaybackParameters playbackParameters`	The playback parameters.

setPlaybackSpeed

public final void setPlaybackSpeed(float speed)

Changes the rate at which playback occurs. The pitch is not changed.

This is equivalent to setPlaybackParameters(getPlaybackParameters().withSpeed(speed)).

This method must only be called if COMMAND_SET_SPEED_AND_PITCH is available.

Parameters
`float speed`	The linear factor by which playback will be sped up. Must be higher than 0. 1 is normal speed, 2 is twice as fast, 0.5 is half normal speed.

setPlaylistMetadata

public final void setPlaylistMetadata(MediaMetadata playlistMetadata)

Sets the playlist MediaMetadata.

This method must only be called if COMMAND_SET_PLAYLIST_METADATA is available.

setRating

public final ListenableFuture<SessionResult> setRating(Rating rating)

Requests that the connected MediaSession rates the current media item. This will cause the rating to be set for the current user. The rating style must follow the user rating style from the session. You can get the rating style from the session through the userRating.

If the user rating was null, the media item does not accept setting user rating.

Parameters
`Rating rating`	The rating to set.

Returns
`ListenableFuture<SessionResult>`	A `ListenableFuture` of `SessionResult` representing the pending completion.

setRating

public final ListenableFuture<SessionResult> setRating(String mediaId, Rating rating)

Requests that the connected MediaSession rates the media. This will cause the rating to be set for the current user. The rating style must follow the user rating style from the session. You can get the rating style from the session through the userRating.

If the user rating was null, the media item does not accept setting user rating.

Parameters
`String mediaId`	The non-empty `mediaId`.
`Rating rating`	The rating to set.

Returns
`ListenableFuture<SessionResult>`	A `ListenableFuture` of `SessionResult` representing the pending completion.

setRepeatMode

public final void setRepeatMode(@Player.RepeatMode int repeatMode)

Sets the RepeatMode to be used for playback.

This method must only be called if COMMAND_SET_REPEAT_MODE is available.

Parameters
`@Player.RepeatMode int repeatMode`	The repeat mode.

setShuffleModeEnabled

public final void setShuffleModeEnabled(boolean shuffleModeEnabled)

Sets whether shuffling of media items is enabled.

This method must only be called if COMMAND_SET_SHUFFLE_MODE is available.

Parameters
`boolean shuffleModeEnabled`	Whether shuffling is enabled.

setTrackSelectionParameters

public final void setTrackSelectionParameters(TrackSelectionParameters parameters)

Sets the parameters constraining the track selection.

Unsupported parameters will be silently ignored.

Use getTrackSelectionParameters to retrieve the current parameters. For example, the following snippet restricts video to SD whilst keep other track selection parameters unchanged:

player.setTrackSelectionParameters(
  player.getTrackSelectionParameters()
        .buildUpon()
        .setMaxVideoSizeSd()
        .build())

This method must only be called if COMMAND_SET_TRACK_SELECTION_PARAMETERS is available.

setVideoSurface

public final void setVideoSurface(@Nullable Surface surface)

Sets the Surface onto which video will be rendered. The caller is responsible for tracking the lifecycle of the surface, and must clear the surface by calling setVideoSurface(null) if the surface is destroyed.

If the surface is held by a SurfaceView, TextureView or then it's recommended to use setVideoSurfaceView, setVideoTextureView or setVideoSurfaceHolder rather than this method, since passing the holder allows the player to track the lifecycle of the surface automatically.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
`@Nullable Surface surface`	The `Surface`.

setVideoSurfaceHolder

public final void setVideoSurfaceHolder(@Nullable SurfaceHolder surfaceHolder)

Sets the SurfaceHolder that holds the Surface onto which video will be rendered. The player will track the lifecycle of the surface automatically.

The thread that calls the SurfaceHolder.Callback methods must be the thread associated with getApplicationLooper.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
`@Nullable SurfaceHolder surfaceHolder`	The surface holder.

setVideoSurfaceView

public final void setVideoSurfaceView(@Nullable SurfaceView surfaceView)

Sets the SurfaceView onto which video will be rendered. The player will track the lifecycle of the surface automatically.

The thread that calls the SurfaceHolder.Callback methods must be the thread associated with getApplicationLooper.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
`@Nullable SurfaceView surfaceView`	The surface view.

setVideoTextureView

public final void setVideoTextureView(@Nullable TextureView textureView)

Sets the TextureView onto which video will be rendered. The player will track the lifecycle of the surface automatically.

Consider using SurfaceView via setVideoSurfaceView instead of . SurfaceView generally causes lower battery consumption, and has better handling for HDR and secure content. See Choosing a surface type for more information.

The thread that calls the TextureView.SurfaceTextureListener methods must be the thread associated with getApplicationLooper.

This method must only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
`@Nullable TextureView textureView`	The texture view.

setVolume

public final void setVolume(@FloatRange(from = 0, to = 1) float volume)

Sets the audio volume, valid values are between 0 (silence) and 1 (unity gain, signal unchanged), inclusive.

This method must only be called if COMMAND_SET_VOLUME is available.

Parameters
`@FloatRange(from = 0, to = 1) float volume`	Linear output gain to apply to all audio channels.

stop

public final void stop()

Stops playback without resetting the playlist. Use pause rather than this method if the intention is to pause playback.

Calling this method will cause the playback state to transition to STATE_IDLE and the player will release the loaded media and resources required for playback. The player instance can still be used by calling prepare again, and release must still be called on the player if it's no longer required.

Calling this method does not clear the playlist, reset the playback position or the playback error.

This method must only be called if COMMAND_STOP is available.

MediaController

Controller Lifecycle

Threading Model

Package Visibility Filter

Backward Compatibility with legacy media sessions

Summary

Nested types

Constants

Public methods

Inherited Constants

Constants

KEY_MEDIA_NOTIFICATION_CONTROLLER_FLAG

RELEASE_UNBIND_TIMEOUT_MS

Public methods

addListener

addMediaItem

addMediaItem

addMediaItems

addMediaItems

canAdvertiseSession

clearMediaItems

clearVideoSurface

clearVideoSurface

clearVideoSurfaceHolder

clearVideoSurfaceView

clearVideoTextureView

decreaseDeviceVolume

decreaseDeviceVolume

getApplicationLooper

getAudioAttributes

getAvailableCommands

getAvailableSessionCommands

getBufferedPercentage

getBufferedPosition

getCommandButtonsForMediaItem

getConnectedToken

getContentBufferedPosition

getContentDuration

getContentPosition

getCurrentAdGroupIndex

getCurrentAdIndexInAdGroup

getCurrentCues

getCurrentLiveOffset

getCurrentManifest

getCurrentMediaItem

getCurrentMediaItemIndex

getCurrentPeriodIndex

getCurrentPosition

getCurrentTimeline

getCurrentTracks

getCurrentWindowIndex

getCustomLayout

getDeviceInfo

getDeviceVolume

getDuration

getMaxSeekToPreviousPosition

getMediaButtonPreferences

getMediaItemAt

getMediaItemCount

getMediaMetadata

getNextMediaItemIndex

getNextWindowIndex

getPlayWhenReady

getPlaybackParameters

getPlaybackState

getPlaybackSuppressionReason

getPlayerError

getPlaylistMetadata

getPreviousMediaItemIndex

getPreviousWindowIndex

getRepeatMode

getSeekBackIncrement

getSeekForwardIncrement

getSessionActivity

getSessionExtras

getShuffleModeEnabled

getSurfaceSize

getTotalBufferedDuration

getTrackSelectionParameters

getVideoSize