android - 警报没有停止

Question

我正在尝试停止闹钟并检查它是否停止，但它总是返回 true 意味着闹钟正在工作。我试图根据链接中的答案停止警报 https://stackoverflow.com/a/17616299/1226882但它对我不起作用。

请引用下面的代码

• 启动闹钟

  public static void startSchedulerAlaram(Context ctx) {
  
  Calendar calendar = Calendar.getInstance();
  calendar.setTimeInMillis(System.currentTimeMillis());
  calendar.set(Calendar.HOUR_OF_DAY, 0); 
  calendar.set(Calendar.MINUTE, 0);
  calendar.set(Calendar.SECOND, 0);
  calendar.set(Calendar.MILLISECOND, 0);
  
  if (calendar.compareTo(Calendar.getInstance()) <= 0)
      calendar.add(Calendar.DATE, 1);
  
  AlarmManager alarmManager = (AlarmManager) ctx
          .getSystemService(Context.ALARM_SERVICE);
  
  Intent intent = new Intent(ctx, Alaram_Receiver.class);
  intent.setAction(Utility.SCHEDULE_ACTION);
  
  PendingIntent pi = PendingIntent.getBroadcast(ctx, 1, intent,0);
  alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
  calendar.getTimeInMillis(),AlarmManager.INTERVAL_DAY, pi);
  
  log("Scheduler Alarm", "Started");
  
  }
  

• 停止闹钟

  public static void stopSchedulerAlaram(Context ctx) {
  
  Intent intent = new Intent(ctx, Alaram_Receiver.class);
  intent.setAction(Utility.SCHEDULE_ACTION);
  PendingIntent pendingIntent = PendingIntent.getBroadcast(ctx, 1,
          intent, PendingIntent.FLAG_UPDATE_CURRENT);
  AlarmManager alarmManager = (AlarmManager) ctx
          .getSystemService(Context.ALARM_SERVICE);
  alarmManager.cancel(pendingIntent);
  
  log("Scheduler Alarm", "Stopped");
  }
  

• 检查警报

  public static boolean checkSchedulerAlaram(Context ctx) {
  
  boolean alarmUp = (PendingIntent.getBroadcast(ctx, 1, new Intent(ctx,Alaram_Receiver.class).setAction(Utility.SCHEDULE_ACTION),
          PendingIntent.FLAG_NO_CREATE) != null);
  
  return alarmUp;
  }
  

Answer 1

你必须传递设置闹钟的不同id

PendingIntent.getBroadcast(ctx, id, intent,PendingIntent.FLAG_UPDATE_CURRENT);

对于取消闹钟，您已经传递了与设置时相同的id。

PendingIntent pendingIntent = PendingIntent.getBroadcast(ctx, id,
        intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) ctx
        .getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(pendingIntent);