vc=20 fixed channel videos but left two player rough edges that Cobb
called out on the phone:
* Tapping 🎧 (background audio) restarted the stream from the
beginning instead of picking up where the foreground player was.
* Pressing HOME on the player auto-entered Picture-in-Picture; what
Cobb wants is seamless background audio.
Both paths now share one handoff: capture exoPlayer.currentPosition,
stop the activity player, start PlaybackService with EXTRA_POSITION_MS,
and seekTo(position) on setMediaItem. Verified on emulator: 🎧 tap from
~34s in-track resumes service at position=34821ms.
HOME-on-player triggers the same path via StrawActivity.onUserLeaveHint
→ PlayerLeaveHandler.handler (a tiny registry the active PlayerScreen
registers in a DisposableEffect; cleared on dispose so the hook is a
no-op anywhere else in the app). The previous DisposableEffect that
called setAutoEnterEnabled(true) is gone; manual PiP via the ⊟ overlay
button stays — that one is still useful and user-triggered.
Also fixes a latent IllegalStateException that the new HOME path
exposed: PlaybackService and PlayerScreen both built MediaSession with
the default empty ID, which the system rejects when both live in the
same process. Service now sets .setId("straw-bg") so the two
sessions can coexist during the brief activity-vs-service overlap
during handoff.
Smoke (emulator 1440x3040):
* Subscriptions feed renders (vc=20 fix carries over).
* 🎧 from ~34s in NCS / Different Heaven → service playing
position=34821ms, no session-ID crash.
* HOME from PlayerScreen → focus moves to NexusLauncher,
PlaybackService running with isForeground=true,
pictureInPictureParams=null on the activity (no PiP).
Kayos
599d299b2a