intent.putExtra()在待处理的意图中不起作用

Question

我通过alarmreceiver从服务类传递一个待处理的意图.但是,在pendingIntent触发后,broadcastreceiver类没有接收到intent.putExtra()信息.这是我的用于触发pendingIntent的代码

Intent aint = new Intent(getApplicationContext(), AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), id, aint, PendingIntent.FLAG_UPDATE_CURRENT);
aint.putExtra("msg", msg);
aint.putExtra("phone", phone);
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pendingIntent);

警报接收器类如下

public String msg, phonen;

@Override
public void  onReceive(Context context, Intent intent){
    Bundle extras = intent.getExtras();
    msg = extras.getString("msg");
    phonen = extras.getString("phone");

    Log.d("onReceive", "About to execute MyTask");
    Toast.makeText(context,msg, Toast.LENGTH_LONG).show();
}

未显示正在从待处理意图接收的Toast中的msg信息.而是显示空白吐司.

Answer 1

试试这个

Intent aint = new Intent(getApplicationContext(), AlarmReceiver.class);
aint.putExtra("msg", msg);
aint.putExtra("phone", phone);



PendingIntent pendingIntent = PendingIntent.getBroadcast(
    getApplicationContext(),
    id, 
    aint,
    // as stated in the comments, this flag is important!
    PendingIntent.FLAG_UPDATE_CURRENT);

Answer 2

请记住在PendingIntent构造函数中放置一个唯一的ID，否则当您尝试获取putExtra值时，您可能会得到一些奇怪的信息。

    PendingIntent pendingIntent = PendingIntent.getBroadcast(
           getApplicationContext(), 
           UUID.randomUUID().hashCode(), 
           aint, 
           PendingIntent.FLAG_UPDATE_CURRENT
    );