各位前輩好，小弟我最近在做一個定時的通知，
定時部份都很正常，但是我想取消這個定時器時，卻一直無法取消，
麻煩各位前輩幫幫忙，看看小弟弟我是那裡寫的有問題，下面是程式碼
****************************************************************
PendingIntent pi;
//設定定時器
Activity act = UnityPlayer.currentActivity;
// Schedule the alarm!
AlarmManager am = (AlarmManager)act.getSystemService(Context.ALARM_SERVICE);
Intent ii = new Intent(act, MyAlarmReceiver.class);
ii.putExtra("title", title);
ii.putExtra("content", content);
pi = PendingIntent.getBroadcast(act, ii.hashCode(), ii, 0);
listAMCode.add(ii.hashCode());
am.setRepeating(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis() * 10 * 1000, 10*1000, pi);
//取消定時器
AlarmManager am = (AlarmManager)
UnityPlayer.currentActivity.getSystemService(Context.ALARM_SERVICE);
am.cancel(pi);
*******************************************************************
麻煩各位了，感謝!!!