MediaControlView

public class MediaControlView extends ViewGroup

A View that contains the controls for androidx.media2.session.MediaController or . It provides a wide range of buttons that serve the following functions: play/pause, rewind/fast-forward, skip to next/previous, select subtitle track, enter/exit full screen mode, select audio track, and adjust playback speed.

For simple use cases not requiring communication with , apps need to create a (e.g. androidx.media2.player.MediaPlayer) and set it to this view by calling setPlayer. For more advanced use cases that require (e.g. handling media key events, integrating with other androidx.media2.session.MediaSession apps as Assistant), apps need to create a attached to the and set it to this view by calling setMediaController.

The easiest way to use a MediaControlView is by creating a VideoView, which internally creates a MediaControlView instance and handles all the commands from buttons inside MediaControlView. It is also possible to create a MediaControlView programmatically and add it to a custom video view. For more information, refer to VideoView.

By default, each button in the MediaControlView is visible only when its corresponding is included in the active . For more details, refer to setAllowedCommands.

UI transitions

• In full mode all the views, such as progress bar, title, transport controls, and other icons are visible.
• In progress-bar only mode the progress bar is the only visible element. The title, transport controls, and other icons are hidden.
• In None mode all the views are hidden.

User actions can change the scheduled transition during the delay interval according to the following logic:

1. In Full mode
   • If a touch/trackball event is received during the interval, the UI changes to None mode.
   • If no touch/trackball event is received during the interval, the UI changes to progress-bar only mode.
2. In Progress-bar only mode
   • If a touch/trackball event is received, the UI changes to Full mode.
   • If no touch/trackball event is received, the UI changes to None mode.
3. In None mode, if a touch/trackball event is received, the UI changes to Full mode.

Customization

• Set focus to the play/pause button by calling requestPlayButtonFocus.
• Set full screen behavior by calling setOnFullScreenListener. Calling this method will also show the full screen button.

Displaying metadata

The following table shows the metadata displayed on VideoView and the default values assigned if the keys are not set:

For video media, METADATA_KEY_TITLE metadata is supported. If the value is not set, the following default value will be shown: mcv2_non_music_title_unknown_text

Summary