The previous approach used a detached CoroutineScope in
CallActivity.onDestroy to publish hangup/reject events. This was
unreliable: the process could be killed before the coroutine completed,
leaving the remote peer's phone ringing.
Fix: CallForegroundService now owns hangup signaling via two paths:
1. onTaskRemoved() — fires when user swipes app from Recents. Uses
runBlocking with 3-second timeout to synchronously publish hangup
before the service is killed.
2. onDestroy() — fires when the service is stopped for any other
reason. Same runBlocking pattern as a safety net.
Changes:
- AndroidManifest: stopWithTask="false" so onTaskRemoved fires instead
of the service being silently killed.
- CallForegroundService: added onTaskRemoved(), onDestroy(), and
publishHangupBlocking() helper.
- CallActivity.onDestroy: removed fire-and-forget CoroutineScope.
Session resource cleanup (close()) still happens here; signaling
hangup is delegated to the foreground service.
- CallSessionBridge.clear(): converted fire-and-forget hangup to
runBlocking with 3-second timeout for account-switch safety.
The three-layer hangup guarantee is now:
1. CallForegroundService.onTaskRemoved/onDestroy — synchronous,
reliable (runBlocking).
2. CallManager ringing watchdog (65s) — if nothing else fires.
3. Remote peer's own timeout — last resort.
https://claude.ai/code/session_019yNnDjGKmJb19gadmojq54
Claude
89cf5e14d4