如何在Android中设置多个告警触发不同的通知

// 创建AlarmManager对象
AlarmManager alarmManager1 = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
AlarmManager alarmManager2 = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

// 创建不同的PendingIntent
Intent intent1 = new Intent(this, AlarmReceiver.class);
Intent intent2 = new Intent(this, AlarmReceiver.class);
PendingIntent pendingIntent1 = PendingIntent.getBroadcast(this, 0, intent1, 0);
PendingIntent pendingIntent2 = PendingIntent.getBroadcast(this, 1, intent2, 0);

// 设置触发时间
Calendar calendar1 = Calendar.getInstance();
calendar1.setTimeInMillis(System.currentTimeMillis());
calendar1.set(Calendar.HOUR_OF_DAY, 8);
calendar1.set(Calendar.MINUTE, 0);
calendar1.set(Calendar.SECOND, 0);
alarmManager1.set(AlarmManager.RTC_WAKEUP, calendar1.getTimeInMillis(), pendingIntent1);

Calendar calendar2 = Calendar.getInstance();
calendar2.setTimeInMillis(System.currentTimeMillis());
calendar2.set(Calendar.HOUR_OF_DAY, 12);
calendar2.set(Calendar.MINUTE, 0);
calendar2.set(Calendar.SECOND, 0);
alarmManager2.set(AlarmManager.RTC_WAKEUP, calendar2.getTimeInMillis(), pendingIntent2);