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vc=21: seamless background-audio handoff on 🎧 + HOME

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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).
This commit is contained in:
Kayos 2026-05-25 03:55:39 +00:00
parent 709af57f42
commit 599d299b2a
5 changed files with 70 additions and 24 deletions
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12
buildSrc/src/main/kotlin/ProjectConfig.kt
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@ -16,6 +16,14 @@ const val NEWPIPE_APPLICATION_ID_NEW = "net.newpipe.app"
// Sulkta fork — Straw
//
// vc=21 / 0.1.0-AG — player hand-off polish:
// * 🎧 background-audio button now captures the current position and
// resumes the foreground service from there instead of restarting.
// * HOME / recents button while on the player now hands off seamlessly
// to background audio (same position-preserving path) instead of
// auto-entering Picture-in-Picture. Manual PiP via the ⊟ overlay
// button is unchanged.
//
// vc=20 / 0.1.0-AF — channel-videos fix on top of the rust pipeline
// cutover. vc=19 returned empty subscription feeds because
// strawcore-core's channel_info wasn't doing the second browse for the
@ -24,6 +32,6 @@ const val NEWPIPE_APPLICATION_ID_NEW = "net.newpipe.app"
// vc=19 / 0.1.0-AE — rust pipeline cutover. Extraction via
// strawcore-core (Sulkta-Coop/strawcore) via the UniFFI wrapper; no
// NewPipeExtractor in the runtime path.
const val STRAW_VERSION_CODE = 20
const val STRAW_VERSION_NAME = "0.1.0-AF"
const val STRAW_VERSION_CODE = 21
const val STRAW_VERSION_NAME = "0.1.0-AG"
const val STRAW_APPLICATION_ID = "com.sulkta.straw"