爲什麼WakefulBroadcastReceiver不能將我的設備從深度睡眠中喚醒？

我正在使用喚醒服務的WakefulBroadcastReceiver喚醒我的設備。該服務啓動一個活動，並在最後通知WakefulBroadcastReceiver結束作業。我做了一個日誌文件，我什麼都看不到。當我解鎖設備時，幾秒鐘後，活動即開始。當我設置鬧鐘時，爲什麼不做？爲什麼WakefulBroadcastReceiver不能將我的設備從深度睡眠中喚醒？

Manifest包含BroadcastReceiver和Service聲明和WAKE_LOCK權限。

這裏是WakefulBroadcastReceiver：

public class AlarmBroadcastReceiver extends WakefulBroadcastReceiver { 

    public AlarmBroadcastReceiver() { 
     Logging.logToFile("Construct broadcast receiver"); 
    } 

    @Override 
    public void onReceive(Context context, Intent intent) { 
     Intent service = new Intent(context, AlarmService.class); 
     startWakefulService(context, service); 
     Logging.logToFile("Started wakeful broadcast receiver"); 
    } 
}

這裏是服務類：

public class AlarmService extends IntentService { 

    public AlarmService() { 
     super("AlarmService"); 
     Logging.logToFile("Started intent service"); 
    } 

    @Override 
    protected void onHandleIntent(Intent intent) { 

     Logging.logToFile("Handle intent service"); 
     Intent service = new Intent(this, WakeUpActivity.class); 
     service.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 
     startActivity(service); 

     AlarmBroadcastReceiver.completeWakefulIntent(intent); 

    } 

    @Override 
    public void onDestroy() { 
     super.onDestroy(); 
     Logging.logToFile("Destroy intent service"); 
    } 
}

這裏是我的日誌：

At 2016-04-01 23:14: Alarm set at 23:20 
At 2016-04-01 23:23: Construct broadcast receiver 
At 2016-04-01 23:23: Started wakeful broadcast receiver 
At 2016-04-01 23:23: Started intent service 
At 2016-04-01 23:23: Handle intent service 
At 2016-04-01 23:23: Started WakeActivity 
At 2016-04-01 23:23: Destroy intent service 
At 2016-04-01 23:25: Alarm set at 23:30 
At 2016-04-01 23:33: Construct broadcast receiver 
At 2016-04-01 23:33: Started wakeful broadcast receiver 
At 2016-04-01 23:33: Started intent service 
At 2016-04-01 23:33: Handle intent service 
At 2016-04-01 23:33: Destroy intent service 
At 2016-04-01 23:33: Started WakeActivity 
At 2016-04-01 23:34: Alarm set at 23:40 
At 2016-04-01 23:42: Construct broadcast receiver 
At 2016-04-01 23:42: Started wakeful broadcast receiver 
At 2016-04-01 23:42: Started intent service 
At 2016-04-01 23:42: Handle intent service 
At 2016-04-01 23:42: Destroy intent service 
At 2016-04-01 23:42: Started WakeActivity 
At 2016-04-01 23:43: Started WakeActivity 
At 2016-04-01 23:44: Alarm set at 23:49 
At 2016-04-02 00:02: Construct broadcast receiver 
At 2016-04-02 00:02: Started wakeful broadcast receiver 
At 2016-04-02 00:02: Started intent service 
At 2016-04-02 00:02: Handle intent service 
At 2016-04-02 00:02: Started WakeActivity 
At 2016-04-02 00:02: Destroy intent service

編輯：這是我如何設置鬧鐘：

Intent intent = new Intent(SmartClockActivity.this, AlarmBroadcastReceiver.class); 
PendingIntent pendingIntent = PendingIntent.getBroadcast(SmartClockActivity.this, 0, intent, 0); 
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); 
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pendingIntent);

來源

2016-04-01 Florescu Cătălin

請包括你如何設置報警 –

@DavidMedenjak，完成。 –

我建議你使用服務並在那裏處理。我認爲你的應用很有可能會被殺死，因此與創建它的Activity相關聯的IntentService也被終止。嘗試完整的服務範圍，它必須解決您的問題。

來源

2016-04-04 19:15:44

謝謝！我會盡快嘗試。 –

仍然無法正常工作.. –

爲什麼WakefulBroadcastReceiver不能將我的設備從深度睡眠中喚醒？

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