Fix UI update execution on binder thread

Because the CarVolumeCallback executes on a binder thread, there was
some strange UI issues when updating the volume preferences. Now when
the UI needs to be updated, it is called on the UI thread.

Bug: 154249219
Test: manual

Change-Id: I13090f175dd0685a90160566730d9475d72579c2
1 file changed
tree: eeb49fbf4e44e9e8d0a59af4ce18d8b3ef39c9d6
  1. res/
  2. src/
  3. tests/
  4. Android.bp
  5. AndroidManifest.xml
  6. OWNERS
  7. PREUPLOAD.cfg