【紧急求助】一个程序不能设置俩闹钟广播么？
如题。
我定义了两个闹钟，set不同的stringextra到一个action，但在recever中获取的时候，发现get到的stringextra总是第一次发送的那个值，比如我第一次发送的test1，那么之后无论我怎么发送test2和test1，得到的永远都是test1。只有删除程序，从新安装了，才会有效，不过也只是有效一次。。。
附代码，请问这个是为什么……为毛会串。。。
/* 闹钟1 */
Intent intent = null;
intent = new Intent(MainActivity.this, MainReceiver.class);
intent.setAction("one_broadcast");
Log.i("tag", "set action with test1");
intent.putExtra("action_key", "test1");
PendingIntent sender = null;
sender = PendingIntent.getBroadcast(MainActivity.this, 0, intent, 0);
Log.i("tag", "action content = " + intent.getStringExtra("test1"));
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
AlarmManager alarm = null;
alarm = (AlarmManager) MainActivity.this.getSystemService(Context.ALARM_SERVICE);
alarm.set(AlarmManager.RTC, calendar.getTimeInMillis(), sender);
/* 闹钟2 */
Intent intent = null;
intent = new Intent(MainActivity.this, MainReceiver.class);
intent.setAction("one_broadcast");
Log.i("tag", "set action with test2");
intent.putExtra("action_key", "test2");
PendingIntent sender = null;
sender = PendingIntent.getBroadcast(MainActivity.this, 0, intent, 0);
Log.i("tag", "action content = " + intent.getStringExtra("test2"));
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
AlarmManager alarm = null;
alarm = (AlarmManager) MainActivity.this.getSystemService(Context.ALARM_SERVICE);
alarm.set(AlarmManager.RTC, calendar.getTimeInMillis(), sender);
