数据发送到报警管理广播接收机 [英] Send data to the alarm manager broadcast receiver

问题描述

我在这里失去了一些东西，我希望有人能帮助我。我使用下面设立一个报警：

I am missing something here and I hope someone can help me out. I am setting up an alarm using the following:

    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

    Intent broadcast_intent = new Intent(this, AlarmBroadcastReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0,  broadcast_intent, 0);

    broadcast_intent.putExtra("test", "ValueReceived"); //data to pass
    Date date = someVariable.getDateTime();


    long triggerAtTime = date.getTime();

    alarmManager.set(AlarmManager.RTC_WAKEUP, triggerAtTime, pendingIntent);

和使用以下所述广播接收机

and the broadcast receiver using the following:

public class AlarmBroadcastReceiver extends BroadcastReceiver{

    @Override
    public void onReceive(Context context, Intent intent) {

        Toast.makeText(context, "Alarm has been received "+intent.getStringExtra("test"), Toast.LENGTH_LONG).show();

    }

}

然而意图小号apperently空。我看到的getStringExtra空值。所以数据不被传递到广播接收机。我究竟做错了什么？我怎么能传递数据。

However intent s apperently "empty". I am seeing null value for the getStringExtra. So the data is not being passed to the broadcast receiver. What am I doing wrong? How can I pass data.

感谢你这么多。

推荐答案

您需要将额外添加到意图的之前您将它传递给的PendingIntent：

You need to add the extras to the Intent before you pass it to the PendingIntent:

Intent broadcast_intent = new Intent(this, AlarmBroadcastReceiver.class);
broadcast_intent.putExtra("test", "ValueReceived"); //data to pass

PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0,  broadcast_intent, 0);

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