报警没有得到停止

我想停止报警，并检查它是否停止与否，而是指报警工作，它总是返回true。我试图根据链接中的答案，停止报警 http://stackoverflow.com/a/17616299/1226882 但它不为我工作。

I am trying to stop the alarm and checking it whether it stopped or not, but it always returns true means alarm is working. I tried to stop the alarm based on the answer in the link http://stackoverflow.com/a/17616299/1226882 but it doesnt work for me.

请参阅下面的code

Please refer the below code

• 开始报警

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");

}

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");
}

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;
}