Android AlarmManager的时间设定问题

用网上大佬们教的AlarmManager设置定时任务的时候,发现如果设置的时间(第二个参数)在当前时间之前,那么广播会立即发送,但是在之后就不会,所以稍作修改了一下:

  AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, 2);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        Intent intent = new Intent(Constants.INTENT_ALARM_LOG);
        intent.setClassName("包名", "包名.BootReceiver");//8.0的静态注册的广播需要加上这个
        PendingIntent pi = PendingIntent.getBroadcast(this, 0, intent, 0);
        am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis() + AlarmManager.INTERVAL_DAY, AlarmManager.INTERVAL_DAY, pi);

在第二个参数加一天的TimeInMillis就可以了.