The playback view is displayed when media has been selected.
Included in this view are:
- Back button
- Media metadata and elapsed time
- Queue button
- Playback controls with visual progress indicator
When there are more than 5 actions in the playback controls, apps can provide secondary actions via the overflow button.
![Screenshot of playback view with callouts identifying specific elements](https://developers.google.cn/cars/design/android-auto/apps/images/Media-anatomy-labelled.png?authuser=1)
Primary actions
All media apps display typical media controls – such as Play/Pause, Previous, and Next – in an easily targeted action card that can include up to 9 actions.
Apps with more than 5 actions should provide access to secondary actions by making the far right button an overflow button.
![Primary action controls](https://developers.google.cn/cars/design/android-auto/apps/images/Media-controls.png?authuser=1)
Action button locations
To ensure consistent usage across media services, actions must appear in the following order (from left to right) on the primary media controls: Playlist/Queue, Previous, Play/Pause, and Next, with an optional function in the rightmost position.
If your service doesn’t use Previous or Next buttons, you can put other buttons in their positions.
Position | Button |
---|---|
Far Left | Playlist/Queue |
Left of center | Previous |
Center | Play/Pause |
Right of center | Next |
Far right | Optional function |
Secondary actions
Apps can provide up to 4 secondary custom actions, such as thumbs up/down. The secondary actions slide up from the primary actions when a user selects the overflow button.
![Secondary action controls](https://developers.google.cn/cars/design/android-auto/apps/images/Media-controls-expanded.png?authuser=1)