我一直在嘗試關注如何處理通知的Android Universal Music Player示例。Android通知重新出現
暫停audioplayback觸發器stopForeground(false) 我使用false來保持通知。
然後,如果我從最近關閉應用程序通知消失,然後重新出現MediaBrowserCompat瀏覽器重新創建時。
我的通知管理器有這條線它它的初始值設定項。
// Cancel all notifications to handle the case where the Service was killed and
// restarted by the system.
Log.d(Constants.TAG, "Canceling all notifications");
mNotificationManager.cancelAll();
看起來好像這個例子爲這個確切的場景添加了這一行。但它似乎並沒有刪除「幽靈」通知。我看到調試消息「取消所有通知」
還有什麼我應該找的?
更新:
忘了提,即重新出現的通知似乎是無交互。播放/跳過/等。按鈕什麼都不做。當延遲停止處理程序運行並且確定沒有音頻正在播放時,通知最終會消失。
Updaet 2:
伊恩建議我監視onStartCommand意圖。
@Override
public int onStartCommand(Intent startIntent, int flags, int startId)
{
Log.d("start command", "On Start called");
Log.d("start command", "Start flag = " + flags);
Log.d("start command", "start Id = " + startId);
if (startIntent != null)
{
Log.d("start command", startIntent.toString());
MediaButtonReceiver.handleIntent(mSession, startIntent);
}
// Reset the delay handler to enqueue a message to stop the service if
// nothing is playing.
mDelayedStopHandler.removeCallbacksAndMessages(null);
mDelayedStopHandler.sendEmptyMessageDelayed(0, STOP_DELAY);
return START_STICKY;
}
這是日誌,我得到
07-15 15:00:29.313 18901-18901/com.hackmodford.bigfinish D/start command: On Start called
07-15 15:00:29.313 18901-18901/com.hackmodford.bigfinish D/start command: Start flag = 0
07-15 15:00:29.313 18901-18901/com.hackmodford.bigfinish D/start command: start Id = 1
07-15 15:00:29.313 18901-18901/com.hackmodford.bigfinish D/start command: Intent { cmp=com.hackmodford.bigfinish/.mediaPlayerService.MediaPlayerService }
07-15 15:00:38.743 19399-19399/com.hackmodford.bigfinish D/start command: On Start called
07-15 15:00:38.743 19399-19399/com.hackmodford.bigfinish D/start command: Start flag = 0
07-15 15:00:38.743 19399-19399/com.hackmodford.bigfinish D/start command: start Id = 3
前4行從開始播放。然後,我暫停播放並關閉最近的應用程序。通知消失,然後重新出現。然後接下來的3條線張貼在顯示器上。
更多更新:
我添加日誌每次.notify(),.startForeground和.stopForeground()被稱爲我的通知管理器。結果如下。
07-15 15:09:10.052 28167-28167/com.hackmodford.bigfinish D/start command: start foreground because start notification was called
07-15 15:09:10.193 28167-28167/com.hackmodford.bigfinish D/start command: On Start called
07-15 15:09:10.194 28167-28167/com.hackmodford.bigfinish D/start command: Start flag = 0
07-15 15:09:10.194 28167-28167/com.hackmodford.bigfinish D/start command: start Id = 1
07-15 15:09:10.194 28167-28167/com.hackmodford.bigfinish D/start command: Intent { cmp=com.hackmodford.bigfinish/.mediaPlayerService.MediaPlayerService }
07-15 15:09:10.210 28167-28167/com.hackmodford.bigfinish D/start command: notify because metadata changed
07-15 15:09:16.678 28167-28167/com.hackmodford.bigfinish D/start command: notify because state changed
07-15 15:09:16.764 28167-28167/com.hackmodford.bigfinish D/start command: stopForeground(false) because state is paused
07-15 15:09:16.891 28167-28167/com.hackmodford.bigfinish D/start command: notify because metadata changed
07-15 15:09:30.841 28803-28803/com.hackmodford.bigfinish D/start command: On Start called
07-15 15:09:30.841 28803-28803/com.hackmodford.bigfinish D/start command: Start flag = 0
07-15 15:09:30.841 28803-28803/com.hackmodford.bigfinish D/start command: start Id = 3
更新:我搜索我的整個項目startService,startForeground(),stopForeground其他OCCURENCES和.notify()沒有任何的運氣。日誌消息描述事件的確切順序。
什麼是MediaBrowserCompat在您的用例中,以及爲什麼如果您從最近消除了您的活動,它會被重新創建? – JoxTraex
我正在製作一個有聲讀物播放器,並遵循Google的通用音樂播放器示例。我相信它會被重新創建,因爲onStart返回START_STICKY – Hackmodford
如果我使它START_NOT_STICKY我沒有問題。但我不確定這是否會導致其他問題... – Hackmodford