没有从sendBroadcast接收Extras

Question

我有一个MainClass，它注册一个BroadcastReceiver并重写它的onReceive()方法

        BroadcastReceiver broadcastReceiver=new BroadcastReceiver(){
        @Override
        public void onReceive(Context context,Intent intent){
            Log.w("MyApp","RICEVUTO MESSAGGIO BROADCAST: "+intent.getStringExtra("com.example.avis.NUOVANEWS"));
            Log.w("MyApp","Intent TOSTRING "+intent.toString());


        }

    };
    this.getApplicationContext().registerReceiver(broadcastReceiver,  new IntentFilter("nuovanewsavis"));

在NewsService类中，当发现新消息时，我广播了一条新消息。这是密码

              Intent intento=new Intent("nuovanewsavis");
          intent.setAction("nuovanewsavis");
          intent.putExtra("com.example.avis.NUOVANEWS", "Nuova notizia");

          this.sendBroadcast(intento);

MainClass无法获得额外的信息:如果我试图通过getStringExtra读取它，就会得到一个null。我做错什么了吗？

Answer 1

我认为有一个typo...your使用的是intent，而不是intento。

      Intent intento = new Intent("nuovanewsavis");
      intento.setAction("nuovanewsavis");
      intento.putExtra("com.example.avis.NUOVANEWS", "Nuova notizia");

      this.sendBroadcast(intento);