Question

我有一个用于创建alarmManager主要活动

的代码

Calendar c = Calendar.getInstance();
c.set(Calendar.HOUR_OF_DAY, 14);
c.set(Calendar.MINUTE, 41);
c.set(Calendar.SECOND, 0);
Intent intentAlarm = new Intent(this, AlarmReceiver.class);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC,c.getTimeInMillis(), pendingIntent.getBroadcast(this, 0, intentAlarm, pendingIntent.FLAG_ONE_SHOT));

在AlarmReceive课程中我有：

public void onReceive(Context context, Intent intent) {
    Toast.makeText(context, "Alarm Scheduled for Tommrrow", Toast.LENGTH_LONG).show();
    intent = new Intent(context, firstservice.class);
    context.startService(intent);
}

在服务firstservice我做了一些操作。问题是警报是按时调用广播接收器，但在此之后，当我打开应用程序时，它也会调用广播接收器，这意味着该服务再次运行。

Answer 1

我也有这个问题。几个小时后，我可以指出这个解决方案的问题。简而言之，我使用了意图附加功能来通知闹钟时间。

在manifest.xml中，注册接收者。

 <receiver android:name=".receivers.DayAlarmReceiver"/>

这就是我设置闹钟管理器的方式

 public void setDayAlarm(Context context) {

    Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(System.currentTimeMillis());
    calendar.set(Calendar.HOUR_OF_DAY, 4);

    AlarmManager alarmMgr = (AlarmManager) getSystemService(ALARM_SERVICE);
    Intent alarmIntent = new Intent(context, DayAlarmReceiver.class);
    alarmIntent.putExtra("HOUR_OF_DAY", 4);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 5555, alarmIntent, 0);
    alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),AlarmManager.INTERVAL_DAY, pendingIntent);
    Log.d("Set the day alarm");

}

这是我的DayAlarmReceiver类的OnReceive（）方法

@Override
public void onReceive(Context context, Intent intent) {
    int setHour = intent.getIntExtra("HOUR_OF_DAY", -1);
    Calendar rightNow = Calendar.getInstance();
    int currentHour = rightNow.get(Calendar.HOUR_OF_DAY);

    if(currentHour == setHour){
        Log.d("This is perfect, Trigger the alarm");
        showNotification(context, msg);
    }else{
       Log.d("This is perfect, Trigger the alarm");

    }

快乐编码:)

Answer 2

尝试为您的意图添加额外内容，并检查它以区分您的预定闹钟与您的接收器所服务的任何其他广播

...
c.set(Calendar.SECOND, 0);
Intent intentAlarm = new Intent(this, AlarmReceiver.class);
intentAlarm.putExtra("myalarm",Boolean.TRUE)
AlarmManager alarmManager = (AlarmManager) ...



public void onReceive(Context context, Intent intent) {
     if (null != intent){
             Bundle extras = intent.getExtras();

             if(extras != null && extras.getBoolean("myalarm", Boolean.TRUE)){
                  //Do your actions  ...  
             }
      }
}

每当我打开应用程序时，android中的AlarmManager都会运行

2 个答案: