爲什麼不殺死android中的鬧鐘管理器？

Question

我在Android的初學者，簡單的運行在mainActivity報警經理與此代碼：

Intent intent = new Intent(testSendWithFood.this, AlarmReciever.class); 
         intent.putExtra("key", "Alert"); 
         //PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 0, intent, 0); 
         PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), 0, intent, 0); 
         AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); 
         Calendar calendar = Calendar.getInstance(); 
         alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, 10, 40 * 1000, pendingIntent); 

，我想在另一個活動殺死報警經理與此代碼：

Intent intent = new Intent(this, AlarmReciever.class); 
       PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 1253, intent, 0); 
       AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); 
       alarmManager.cancel(pendingIntent); 

但是如此警報管理器不會殺死！，爲什麼？謝謝。

Answer 1

掛起的意圖必須相同。所以，如果你改變的意圖ID到1253當您創建的意圖，然後使用相同的取消掛起的意圖，從而改變

PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(),0, intent, 0); 

要

PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), 1253, intent, 0);