[英]Can my AlarmManager fire the first alarm, when the set time is reached, not after the first repeating?
對於我的應用程序,我想在午夜和每隔一個午夜定期發出警報以重置一些變量。 我嘗試了警報管理器來實現這一點。 警報是否有可能在它第一次到達午夜時觸發,而不僅僅是在接下來的午夜? 我的實際代碼正在運行,但不是我想要實現的。 我現在將時間和重復時間設置為 60 秒以進行測試。
在我的日志輸出中,我得到例如:
那么是否可以在到達設定時間的第一時間直接觸發警報? 或者有人有解決方法或任何提示或提示我如何實現嗎?
我設置鬧鍾的功能
public void midnightAlarm() {
AlarmManager alarmMgr;
PendingIntent alarmIntent;
alarmMgr = (AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, MidnightAlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 15);
calendar.set(Calendar.MINUTE, 15);
alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
1000 * 60 , alarmIntent);
}
我的接收者類:
public class MidnightAlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
writeToFile("ALARM");
//reset my Variables
}
}
public void midnightAlarm() {
AlarmManager alarmMgr;
PendingIntent alarmIntent;
alarmMgr = (AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, MidnightAlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
// Set the alarm to start at 8:30 a.m.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
alarmMgr.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), alarmIntent);
}
接收者
public class MidnightAlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
GlobalVariables.writeToFile("ALARM");
midnightAlarmREDO(context);
}
public void midnightAlarmREDO(Context context) {
AlarmManager alarmMgr;
PendingIntent alarmIntent;
alarmMgr = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, MidnightAlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
// zeit neu berechnen
alarmMgr.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
SystemClock.elapsedRealtime() +
60 * 1000, alarmIntent);
}
}
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