你可以通过创建每一个唯一的IP来区分alarms
Intent intent = new Intent(this, AlarmReceiverActivity.class);
PendingIntent pi = PendingIntent.getActivity(this,UNIQUE_ID_GOES_HERE, intent, 0);
AlarmManager am = (AlarmManager)getSystemService(Activity.ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, triggerAtMillis ,pi);
当要访问这个alarm,需要在相同的ID中创建相同的PendingIntent。例如下面这个例子是只访问 PendingIntent id 是1234的alarm,然后他会取消之前的alarm重置。
Intent intent = new Intent(this, AlarmReceiverActivity.class);
PendingIntent pi = PendingIntent.getBroadcast(this, 1234, intent, 0);
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, triggerAtMillis ,pi);