Added in API level 21

Summary: Methods | Inherited Methods

MediaController.TransportControls

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Kotlin |Java

public final class MediaController.TransportControls
extends Object

java.lang.Object
↳	android.media.session.MediaController.TransportControls

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Interface for controlling media playback on a session. This allows an app to send media transport commands to the session.

Summary

Public methods
void	fastForward() Start fast forwarding.
void	pause() Request that the player pause its playback and stay at its current position.
void	play() Request that the player start its playback at its current position.
void	playFromMediaId(String mediaId, Bundle extras) Request that the player start playback for a specific media id.
void	playFromSearch(String query, Bundle extras) Request that the player start playback for a specific search query.
void	playFromUri(Uri uri, Bundle extras) Request that the player start playback for a specific Uri.
void	prepare() Request that the player prepare its playback.
void	prepareFromMediaId(String mediaId, Bundle extras) Request that the player prepare playback for a specific media id.
void	prepareFromSearch(String query, Bundle extras) Request that the player prepare playback for a specific search query.
void	prepareFromUri(Uri uri, Bundle extras) Request that the player prepare playback for a specific Uri.
void	rewind() Start rewinding.
void	seekTo(long pos) Move to a new location in the media stream.
void	sendCustomAction(PlaybackState.CustomAction customAction, Bundle args) Send a custom action back for the MediaSession to perform.
void	sendCustomAction(String action, Bundle args) Send the id and args from a custom action back for the MediaSession to perform.
void	setPlaybackSpeed(float speed) Sets the playback speed.
void	setRating(Rating rating) Rate the current content.
void	skipToNext() Skip to the next item.
void	skipToPrevious() Skip to the previous item.
void	skipToQueueItem(long id) Play an item with a specific id in the play queue.
void	stop() Request that the player stop its playback; it may clear its state in whatever way is appropriate.

Inherited methods

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

Public methods

fastForward

Added in API level 21

public void fastForward ()

Start fast forwarding. If playback is already fast forwarding this may increase the rate.

pause

Added in API level 21

public void pause ()

Request that the player pause its playback and stay at its current position.

play

Added in API level 21

public void play ()

Request that the player start its playback at its current position.

playFromMediaId

Added in API level 21

public void playFromMediaId (String mediaId, 
                Bundle extras)

Request that the player start playback for a specific media id.

Parameters
mediaId	String: The id of the requested media.
extras	Bundle: Optional extras that can include extra information about the media item to be played.

playFromSearch

Added in API level 21

public void playFromSearch (String query, 
                Bundle extras)

Request that the player start playback for a specific search query. An empty or null query should be treated as a request to play any music.

Parameters
query	String: The search query.
extras	Bundle: Optional extras that can include extra information about the query.

playFromUri

Added in API level 23

public void playFromUri (Uri uri, 
                Bundle extras)

Request that the player start playback for a specific Uri.

Parameters
uri	Uri: The URI of the requested media.
extras	Bundle: Optional extras that can include extra information about the media item to be played.

prepare

Added in API level 24

public void prepare ()

Request that the player prepare its playback. In other words, other sessions can continue to play during the preparation of this session. This method can be used to speed up the start of the playback. Once the preparation is done, the session will change its playback state to PlaybackState#STATE_PAUSED. Afterwards, play() can be called to start playback.

prepareFromMediaId

Added in API level 24

public void prepareFromMediaId (String mediaId, 
                Bundle extras)

Request that the player prepare playback for a specific media id. In other words, other sessions can continue to play during the preparation of this session. This method can be used to speed up the start of the playback. Once the preparation is done, the session will change its playback state to PlaybackState#STATE_PAUSED. Afterwards, play() can be called to start playback. If the preparation is not needed, playFromMediaId(String, Bundle) can be directly called without this method.

Parameters
mediaId	String: The id of the requested media.
extras	Bundle: Optional extras that can include extra information about the media item to be prepared.

prepareFromSearch

Added in API level 24

public void prepareFromSearch (String query, 
                Bundle extras)

Request that the player prepare playback for a specific search query. An empty or null query should be treated as a request to prepare any music. In other words, other sessions can continue to play during the preparation of this session. This method can be used to speed up the start of the playback. Once the preparation is done, the session will change its playback state to PlaybackState#STATE_PAUSED. Afterwards, play() can be called to start playback. If the preparation is not needed, playFromSearch(String, Bundle) can be directly called without this method.

Parameters
query	String: The search query.
extras	Bundle: Optional extras that can include extra information about the query.

prepareFromUri

Added in API level 24

public void prepareFromUri (Uri uri, 
                Bundle extras)

Request that the player prepare playback for a specific Uri. In other words, other sessions can continue to play during the preparation of this session. This method can be used to speed up the start of the playback. Once the preparation is done, the session will change its playback state to PlaybackState#STATE_PAUSED. Afterwards, play() can be called to start playback. If the preparation is not needed, playFromUri(Uri, Bundle) can be directly called without this method.

Parameters
uri	Uri: The URI of the requested media.
extras	Bundle: Optional extras that can include extra information about the media item to be prepared.

rewind

Added in API level 21

public void rewind ()

Start rewinding. If playback is already rewinding this may increase the rate.

seekTo

Added in API level 21

public void seekTo (long pos)

Move to a new location in the media stream.

Parameters
pos	long: Position to move to, in milliseconds.

sendCustomAction

Added in API level 21

public void sendCustomAction (PlaybackState.CustomAction customAction, 
                Bundle args)

Send a custom action back for the MediaSession to perform.

Parameters
customAction	PlaybackState.CustomAction: The action to perform. This value cannot be null.
args	Bundle: Optional arguments to supply to the MediaSession for this custom action. This value may be null.

sendCustomAction

Added in API level 21

public void sendCustomAction (String action, 
                Bundle args)

Send the id and args from a custom action back for the MediaSession to perform.

Parameters
action	String: The action identifier of the PlaybackState.CustomAction as specified by the MediaSession. This value cannot be null.
args	Bundle: Optional arguments to supply to the MediaSession for this custom action. This value may be null.

See also:

• sendCustomAction(PlaybackState.CustomAction, Bundle)

setPlaybackSpeed

Added in API level 29

public void setPlaybackSpeed (float speed)

Sets the playback speed. A value of 1.0f is the default playback value, and a negative value indicates reverse playback. 0.0f is not allowed.

Parameters
speed	float: The playback speed

Throws
IllegalArgumentException	if the speed is equal to zero.

setRating

Added in API level 21

public void setRating (Rating rating)

Rate the current content. This will cause the rating to be set for the current user. The Rating type must match the type returned by MediaController.getRatingType().

Parameters
rating	Rating: The rating to set for the current content

skipToNext

Added in API level 21

public void skipToNext ()

Skip to the next item.

skipToPrevious

Added in API level 21

public void skipToPrevious ()

Skip to the previous item.

skipToQueueItem

Added in API level 21

public void skipToQueueItem (long id)

Play an item with a specific id in the play queue. If you specify an id that is not in the play queue, the behavior is undefined.

Parameters
id	long

stop

Added in API level 21

public void stop ()

Request that the player stop its playback; it may clear its state in whatever way is appropriate.