在后台运行的应用中点击通知时，会从通知中获得更多好处

Question

当我在firebasemessagingservice(fcm)中添加额外的意图时，当我单击通知后，它打开了activity（welcomeactivty），但是oncreate()方法我获得了额外的捆绑包，但没有得到相应的额外价值应用程序在后台运行时的关键，相反，当应用程序在前台运行时，我得到了值。

我也尝试过onnewIntent()来获取价值。我还尝试了在堆栈溢出上阅读的解决方案。

这是我的lucher活动方法：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_user_creation);



  //  Log.d("aaabbb", savedInstanceState.getInt("abc")+"save");
    Bundle extras = getIntent().getExtras();
    Log.d("aaabbb", "Start");
    if (extras != null) {
    // this always true getIntent().getIntExtra("abc",200)+"a" return null

        Log.d("aaabbb", getIntent().getIntExtra("abc",200)+"a");

        if (extras.containsKey("abc")) {

            // extract the extra-data in the Notification
            String msg = extras.getString("abc");
            Log.d("aaabbb", msg);

        }
    }
}

这是我的FCM颂歌：

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    String title=remoteMessage.getNotification().getTitle();
    String body=remoteMessage.getNotification().getBody();
    String from_userid=remoteMessage.getData().get("chatid");
   // String 
    super.onMessageReceived(remoteMessage);



    //SharedPreferencesSuk.getInstance(this).put(SharedPreferencesSuk.Key.STATUS,+"");
    m=System.currentTimeMillis()+"";
    Intent intent;
    if(title.equals("Message"))
    {
         intent = new Intent(this,MessagingView.class);
        intent.putExtra("abc", -25);
        intent.putExtra("otheruserid",from_userid);
    }
    else
    {
         intent = new Intent(this,HomeActivity.class);
        intent.putExtra("abc", -25);
        intent.putExtra("otheruserid",from_userid);
    }
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    String channelId = "Default";
    NotificationCompat.Builder builder = new  NotificationCompat.Builder(this, channelId)
            .setSmallIcon(R.mipmap.ic_launcher)
            .setContentTitle(remoteMessage.getNotification().getTitle())
            .setContentText(remoteMessage.getNotification().getBody()).setAutoCancel(true).setContentIntent(pendingIntent);
    NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationChannel channel = new NotificationChannel(channelId, "Default channel", NotificationManager.IMPORTANCE_DEFAULT);
        manager.createNotificationChannel(channel);
    }
    manager.notify(0, builder.build());
    //-------
}