我试图通过alarmmanger传递两个整数,但是每当我将它们传递给toast时,都会返回null。我无法理解问题出在哪里。使用报警管理器将int传递给BroadcastReceiver类
Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
intent.putExtra("passedHour", cal.get(Calendar.HOUR_OF_DAY));
intent.putExtra("passedMin", cal.get(Calendar.MINUTE));
PendingIntent alarmIntent = PendingIntent.getBroadcast(
MainActivity.this, 0, intent, 0);
AlarmManager alarmMgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmMgr.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),
alarmIntent);
这是alaramreceiver类的onReceive
Toast.makeText(context, "Alarm!! " + intent.getStringExtra("passedHour") + ":" + intent.getStringExtra("passedMin"), Toast.LENGTH_LONG).show();
'Calendar#get()'返回一个'int'。你试图从'Intent'作为'String'来检索它。改为使用'Intent#getIntExtra()'方法。 –
使用'getIntExtra'而不是'getStringExtra'从intent获取两个键值,因为'Calendar'' get'方法的返回类型是'int'而不是'String' –
是的thnxs家伙它的工作:) – Saud