Question

我创造了一个每分钟都会响起的重复闹钟。我创建了一个具有2个静态函数的类来启动和取消警报。我这样做了所以我可以从多个地方开始并取消它。启动警报工作正常，但取消则没有。我在调用startAlarm和cancelAlarm时使用的上下文是getApplicationContext()。我认为这可能是上下文的问题，但我不确定。有什么想法吗？

这是我的班级

public class Alarm {

  public  static PendingIntent pendingIntent;
  public static  AlarmManager manager;
  public static Intent alarmIntent;

    public static void startAlarm(Context context) {

    Log.e("ALARM", "------------STARTED----------------");
    alarmIntent = new Intent((context), AlarmReceiver.class);
    alarmIntent.setAction("NOTIFICATION_ALARM");
    pendingIntent = PendingIntent.getBroadcast(context, 0, alarmIntent, 0);
    manager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
    int alarmType = AlarmManager.RTC_WAKEUP;
    Calendar cal = Calendar.getInstance();


    long intervalTime = 1 * 60 * 1000;
    manager.setRepeating(alarmType, cal.getTimeInMillis(), intervalTime, pendingIntent);

  }

    public static void cancelAlarm(Context context) {

      alarmIntent = new Intent(context, AlarmReceiver.class);
      pendingIntent = PendingIntent.getBroadcast(context, 0, alarmIntent, 0);
      manager = (AlarmManager)     context.getSystemService(Context.ALARM_SERVICE);
      if (manager != null) {
          Log.e("ALARM", "------------STOPPED----------------");
          manager.cancel(pendingIntent);
      }
    }
}

Answer 1

使用cancel()上的AlarmManager及其PendingIntent与您在setRepeating（）中使用的Intent intent = new Intent(this, AlarmReceive.class); PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0); AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);：

Date

Answer 2

您取消的Intent上的PendingIntent需要与您用于设置闹钟的alarmIntent.setAction("NOTIFICATION_ALARM");匹配，如Intent#filterEquals(Intent)方法所定义。也就是说，您还需要在cancelAlarm()方法中调用luaState.getGlobal(function); luaState.pushJavaObject(obj); luaState.call(1, 1);。

在Android中取消重复警报

2 个答案: