MediaController.ControllerCallbackRunnable
SessionToken.OnSessionTokenCreatedListener	Interface definition of a listener to be invoked when a token2 object is created from a .

HeartRating	A class for rating with a single degree of rating, "heart" vs "no heart".
LibraryResult	Result class to be used with for asynchronous calls between MediaLibraryService.MediaLibrarySession and MediaBrowser.
MediaBrowser	Browses media content offered by a MediaLibraryService.
MediaBrowser.BrowserCallback	Callback to listen events from MediaLibraryService.
MediaBrowser.Builder	Builder for MediaBrowser.
MediaConstants	Media constants for sharing constants between media provider and consumer apps
MediaController	Allows an app to interact with an active MediaSession or a MediaSessionService which would provide MediaSession.
MediaController.Builder	Builder for MediaController.
MediaController.ControllerCallback	Interface for listening to change in activeness of the MediaSession.
MediaController.PlaybackInfo	Holds information about the way volume is handled for this session.
MediaLibraryService	Base class for media library services, which is the service containing MediaLibraryService.MediaLibrarySession.
MediaLibraryService.LibraryParams	Contains information that the library service needs to send to the client.
MediaLibraryService.LibraryParams.Builder	Builds a MediaLibraryService.LibraryParams.
MediaLibraryService.MediaLibrarySession	Session for the MediaLibraryService.
MediaLibraryService.MediaLibrarySession.Builder	Builder for MediaLibraryService.MediaLibrarySession.
MediaLibraryService.MediaLibrarySession.MediaLibrarySessionCallback	Callback for the MediaLibraryService.MediaLibrarySession.
MediaSession	Allows a media app to expose its transport controls and playback information in a process to other processes including the Android framework and other apps.
MediaSession.Builder	Builder for MediaSession.
MediaSession.CommandButton	Button for a SessionCommand that will be shown by the controller.
MediaSession.CommandButton.Builder	Builder for MediaSession.CommandButton.
MediaSession.ControllerInfo	Information of a controller.
MediaSession.SessionCallback	Callback to be called for all incoming commands from MediaControllers.
MediaSessionManager	Provides support for interacting with media sessions that applications have published in order to express their ongoing media playback state.
MediaSessionService	Base class for media session services, which is the service containing MediaSession.
MediaSessionService.MediaNotification	Returned by MediaSessionService.onUpdateNotification(MediaSession) for making session service foreground service to keep playback running in the background.
MediaUtils
PercentageRating	A class for rating expressed as a percentage.
RemoteSessionPlayer	Base interface for all remote media players that want media session and playback happens on the remote device through MediaRouter.
RemoteSessionPlayer.Callback	A callback class to receive notifications for events on the remote session player.
SessionCommand	Defines a command that a MediaController can send to a MediaSession.
SessionCommandGroup	A set of SessionCommand which represents a command group.
SessionCommandGroup.Builder	Builds a SessionCommandGroup object.
SessionResult	Result class to be used with for asynchronous calls between MediaSession and MediaController.
SessionToken	Represents an ongoing MediaSession or a MediaSessionService.
StarRating	A class for rating expressed as the number of stars.
ThumbRating	A class for rating with a single degree of rating, "thumb up" vs "thumb down".