Question

场景：

我的任务将在每个午夜使用AlarmManager执行，让我们在00:00:00说，并且应该每天重复

我使用以下代码：

Calendar setCalendar = Calendar.getInstance();
setCalendar.set(Calendar.HOUR_OF_DAY, 0);
setCalendar.set(Calendar.MINUTE,0);
setCalendar.set(Calendar.SECOND,0);

PendingIntent pi = PendingIntent.getBroadcast(this, 0, new Intent(this, AlarmReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.setInexactRepeating(AlarmManager.RTC, setCalendar.getTimeInMillis(), 1000 * 60 *60 *24, pi);

我也做了alarmManager.setInexactRepeating(AlarmManager.RTC, setCalendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);但结果仍然相同（不是每个午夜都执行）

接收者：

public static class AlarmReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
       //execute my task
    }
}

Android Manifest：

<uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>    
<receiver android:name="com.projectx.activity.MainActivity$AlarmReceiver"/>

即使午夜过去，上面的代码也没有做任何事情。我的代码有什么问题吗？请帮忙。

有时候我在设置闹钟后每隔几秒就会执行一次闹钟（不仅是在午夜）

我不知道是什么原因造成的。

Answer 1

试试这个：

AlarmManager alarmMgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
            Intent intent1 = new Intent(context, TestNotifyService.class);
            PendingIntent alarmIntent = PendingIntent.getService(context, 0, intent1, 0);
long _Nalarm;
            Calendar now = Calendar.getInstance();
            Calendar wakeupcall = Calendar.getInstance();
            wakeupcall.setTimeInMillis(System.currentTimeMillis());
            wakeupcall.set(Calendar.HOUR_OF_DAY, 21);
            wakeupcall.set(Calendar.MINUTE, 59);

            if (wakeupcall.getTimeInMillis() <= now.getTimeInMillis())
                _Nalarm=wakeupcall.getTimeInMillis() + (AlarmManager.INTERVAL_DAY+1);
            else
                _Nalarm=wakeupcall.getTimeInMillis();



           alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, _Nalarm,AlarmManager.INTERVAL_DAY, alarmIntent);
        }

Answer 2

尝试以下代码

rhqadmin

接收者：

Calendar setCalendar = Calendar.getInstance();
    setCalendar.set(Calendar.HOUR_OF_DAY, 0);
    setCalendar.set(Calendar.MINUTE,0);
    setCalendar.set(Calendar.SECOND,0);
    setCalendar.add(Calendar.DATE, 1);

    PendingIntent pi = PendingIntent.getBroadcast(this, 0, new Intent(this, AlarmReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT);
    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    alarmManager.setInexactRepeating(AlarmManager.RTC, setCalendar.getTimeInMillis(), 1000 * 60 *60 *24 , pi);

如果有任何问题，请告诉我。

为什么警报管理器不在午夜执行任务，即使代码是对的？

2 个答案: