AlarmManager和IntentService最終停止工作

Question

我有一個應用程序使用AlarmManager來每5分鐘反覆調用一次IntentService。它似乎可以在數小時甚至數天內正常工作，但最終可以停止。

這是爲什麼？有什麼我可以做，以檢查它是否已被殺害，並重新啓動它？

謝謝。

// get a Calendar object with current time 
      Calendar cal = Calendar.getInstance(); 
      // add 5 minutes to the calendar object 
      cal.add(Calendar.MINUTE, 1); 
      Intent intent = new Intent(getApplicationContext(), AlarmReceiver.class); 
      intent.putExtra("alarm_message", "sending outstanding transactions"); 
      // In reality, you would want to have a static variable for the request code instead of 192837 
      PendingIntent sender = PendingIntent.getBroadcast(getApplicationContext(), 192837, intent, PendingIntent.FLAG_UPDATE_CURRENT); 

      // Get the AlarmManager service 
      AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE); 
      //am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sender); 
      //86400000 = 24 hours 
      //43200000 = 12 hours 
      //3600000 = 1hr 
      //1800000 = 30 mins 
      // 600000 = 10 mins 
      //300000 = 5 mins 

      am.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 300000 , sender); 

。

public class AlarmReceiver extends BroadcastReceiver { 

@Override 
public void onReceive(Context context, Intent intent) { 





    PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 
    NfcScannerApplication.wl = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK|PowerManager.ACQUIRE_CAUSES_WAKEUP, "com.something.alarm"); 
    if(!NfcScannerApplication.wl.isHeld()){ 
     Log.e("AlarmReceiver", "aquiring wake lock in alarmmanager"); 
     NfcScannerApplication.wl.acquire(15000); 

    KeyguardManager km = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE); 
    km.newKeyguardLock("AlarmReceiver").disableKeyguard(); 
    } 

    try { 

    Bundle bundle = intent.getExtras(); 
    String message = bundle.getString("alarm_message"); 
    // Toast.makeText(context, message, Toast.LENGTH_SHORT).show(); 
    Intent myIntent = new Intent(context, SendOutstandingTransactions.class); 
    myIntent.setAction("com.carefreegroup.rr3.startatboot.MyService"); 
    context.startService(myIntent); 

    } catch (Exception e) { 
    Toast.makeText(context, "There was an error somewhere, but we still received an alarm", Toast.LENGTH_SHORT).show(); 
    e.printStackTrace(); 

    } 
} 

} 

。

public class SendOutstandingTransactions extends IntentService { 

    private static final String TAG = SendOutstandingTransactions.class.getSimpleName(); 
    NfcScannerApplication nfcscannerapplication; 
    Cursor c; 
    //LocationManager    mlocManager; 
    //LocationListener   mlocListener; 
    SharedPreferences appSharedPrefs; 
    Editor prefsEditor; 
    String companyID; 

    @Override 
    public void onCreate() { 
     super.onCreate(); 
     nfcscannerapplication = (NfcScannerApplication)getApplication(); 
     //mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 
     appSharedPrefs = PreferenceManager.getDefaultSharedPreferences(SendOutstandingTransactions.this.getApplicationContext()); 
     prefsEditor = appSharedPrefs.edit(); 

    } 





    @Override 
    protected void onHandleIntent(Intent intent) { 


     //do something 

} 

[編輯]

  Intent intentstop = new Intent(NfcscannerActivity.this, AlarmReceiver.class); 
      PendingIntent senderstop = PendingIntent.getBroadcast(NfcscannerActivity.this, 192837, intentstop, 0); 
      AlarmManager alarmManagerstop = (AlarmManager) getSystemService(ALARM_SERVICE); 
      alarmManagerstop.cancel(senderstop); 

Answer 1

可能是更好的爲您服務，而不是依靠一個長期生活報警Manager呼叫完成後重新安排。此外，你應該考慮一個清醒的廣播接收器，而不是自己管理哇克。