IssueTracker

I'm using androidx.media2.session.MediaSessionService for background audio playback.

When I dismiss the default notification created by MediaNotificationHandler, I get the following ANR:
Context.startForegroundService() did not then call Service.startForeground()

As far as I can tell the problem is that notification is created with a PendingIntent#getForegroundService() for delete intent, so after I dismiss the notification the service is started again as a foreground, but since the command is ACTION_STOP, nothing happens afterwards and we get the ANR.

If I understood correctly, the ACTION_PAUSE is handled correctly, so that its pending intent will start a regular service instead of a foreground one.

MediaNotificationHandler#206
if (Build.VERSION.SDK_INT >= 26 && action != ACTION_PAUSE) {
    return PendingIntent.getForegroundService(
            mServiceInstance, keyCode /* requestCode */, intent, 0 /* flags */);
} else {
    return PendingIntent.getService(
            mServiceInstance, keyCode /* requestCode */, intent, 0 /* flags */);
}

So I guess we should do the same for ACTION_STOP.