42

我正在尝试以两种不同的方法创建和删除警报,这两种方法都在应用程序逻辑中的不同时刻调用。

但是,当我调用 AlarmManager 的cancel()方法时,警报并没有被删除。

这是我的addAlarm()方法:

AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);

Intent intent = new Intent(PROX_ALERT_INTENT);
intent.putExtra("ALERT_TIME", alert.date);
intent.putExtra("ID_ALERT", alert.idAlert);
intent.putExtra("TITLE", alert.title);
intent.putExtra("GEO_LOC", alert.isGeoLoc);
PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext,
        alert.idAlert, intent, PendingIntent.FLAG_CANCEL_CURRENT);

Calendar calendar = Calendar.getInstance();
calendar.setTime(alert.date);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
Log.e("ADD ALERT - WithoutGeoLoc - ",alert.toString());

这是我的 deleteAlarm() 方法:

AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);

Intent intent = new Intent(PROX_ALERT_INTENT);
intent.putExtra("ALERT_TIME", alert.date);
intent.putExtra("ID_ALERT", alert.idAlert);
intent.putExtra("TITLE", alert.title);
intent.putExtra("GEO_LOC", alert.isGeoLoc);
PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext,
        alert.idAlert, intent, PendingIntent.FLAG_CANCEL_CURRENT);

alarmManager.cancel(pendingIntent);
Log.e(TAG,"REMOVE ALERT - without GeoLoc"+alert.toString());

这是我的 Logcat :

01-23 17:44:07.411: E/ADD ALERT - WithoutGeoLoc -(18789): Alert [latitude=0.0, longitude=0.0, title=bfwu, comments=null, address=null, currency=hrk, idAlert=1, date=Sat Feb 23 17:44:04 CET 2013, isGeoLoc=null]
01-23 17:44:13.032: E/REMOVE ALERT without GeoLoc - (18789): Alert [latitude=0.0, longitude=0.0, title=bfwu, comments=null, address=null, currency=hrk, idAlert=1, date=Sat Feb 23 17:44:04 CET 2013, isGeoLoc=null]

这是 AlarmManager 中的 pendingIntents 列表

Current Alarm Manager state:
Realtime wakeup (now=2013-01-23 17:44:37):
RTC_WAKEUP #48: Alarm{2c1d0588 type 0 com.my.app}
type=0 when=+364d23h59m33s288ms repeatInterval=0 count=0
operation=PendingIntent{2c0a6cb0: PendingIntentRecord{2c1d04e8 com.my.app  broadcastIntent}}
RTC_WAKEUP #47: Alarm{2c2298a0 type 0 com.my.app}
type=0 when=+30d23h59m27s360ms repeatInterval=0 count=0
operation=PendingIntent{2c292af8: PendingIntentRecord{2c22a628 com.my.app broadcastIntent}}

几点注意事项:

  • RTC_WAKEUP #47是我原来的闹钟
  • RTC_WAKEUP #48是一个应该覆盖 #47 而不是创建新警报的新警报。

我使用filterEquals()返回的 Intent 方法比较了我的 add 和 delete 方法中的两个意图(不是 pendingIntents) true......但是警报没有被删除。我究竟做错了什么?


更新

这是我的saveAlert()调用方法addAlarm()deleteAlarm()

private void saveAlert() {
    // *** If Modifying Alert => REMOVE OLD ALERT (then add new one)
    Intent intent1 = null, intent2 = null;

    if (alert.idAlert != null) {
        if (alert.isGeoLoc == null || alert.isGeoLoc == false) {
            intent2 = ProximityService.removeProximityAlertWithoutGeoLoc(getApplicationContext(), devisesApp.alertsGlobal.getAlertById(alert));
        } else {
            ProximityService.removeProximityAlert(getApplicationContext(), alert);
        }
    }
    // *** Add Alert
    if (alert.isGeoLoc == null || alert.isGeoLoc == false) {
        intent1 = ProximityService.addProximityAlertWithoutGeoLoc(getApplicationContext(), alert, devisesApp.alertsGlobal);
    } else {
        ProximityService.addProximityAlert(getApplicationContext(), alert, devisesApp.alertsGlobal);
    }

    Log.i(TAG, "[saveAlert] Alert ID : " + alert.idAlert);
    devisesApp.alertsGlobal.addById(alert);
    Log.i("INTENT EQUALS", intent1.filterEquals(intent2) + ""); // This returns true
}
4

4 回答 4

49

试试这个标志:

PendingIntent.FLAG_UPDATE_CURRENT

代替:

PendingIntent.FLAG_CANCEL_CURRENT 

所以 PendingIntent 看起来像这样:

PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 
        alert.idAlert, intent, PendingIntent.FLAG_UPDATE_CURRENT)  

(确保您使用相同的alert对象和mContext!)

附注:如果您想要一个全局 AlarmManager,请将 AlarmManager 放在一个静态变量中(并仅在它为 时才对其进行初始化null)。

于 2013-01-24T09:55:13.573 回答
3

取消警报有点令人困惑。您必须传递相同的 ID 和 IntentPending。这是一个例子:

private void resetIntentWithAlarm(int time){


        Intent intentAlarm = new Intent(getApplicationContext(), DownloadService.class);
        intentAlarm.putExtra(Your Key, Your stuff to pass here);

        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

        PendingIntent pendingIntent = PendingIntent.getService(
                getApplicationContext(),
                YOUR_ID,
                intentAlarm,
                PendingIntent.FLAG_UPDATE_CURRENT
        );

    if (time != 0) {

        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (60L * 1000L * time), (60L * 1000L * time), pendingIntent);
        Log.i(TAG, "Alarm setted on for " + time + " mins.");
    }
    // if TIME == Zero, cancel alaram
    else {

        alarmManager.cancel(pendingIntent);
        Log.i(TAG, "Alarm CANCELED. Time = " + time);
    }
于 2017-02-16T10:07:12.063 回答
0

在您设置的任何特定时间从警报管理器取消警报:

Intent intent = new Intent(context, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager am = (AlarmManager) context.getSystemService(ALARM_SERVICE);
am.cancel(pendingIntent);
于 2019-04-04T05:08:12.383 回答
-2

如果您想取消警报管理器,只需将 wright id 放入待处理的意图中,然后在警报管理器中为该待处理的意图调用 cancel()。

于 2013-10-23T08:41:42.143 回答