I think I finally found it!
- Start media playback in the app
- Start DHU, the playback should pause
- When you try to play media through DHU, silence, but it seems it should be playing. Logcat seems ok, throbber moves as it’s playing.
The problem was with audio focus handling.
I acquired focus on MediaBrowswer
creation and abandoned it on destruction. Wrong! You should acquire focus on playback start and abandon it on pause or stop.
solved Android Auto app doesn’t work for reviewer, but works for us