Question

我有一个MainClass注册一个BroadcastReceiver并覆盖它的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"));

在类NewsService中，当找到新消息时，我会广播一条新消息。这是代码

              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：如果我尝试通过getStringExtra读取它，我得到一个null。我做错了吗？

Answer 1

我认为有一个错字......你在使用intent时使用intento代替Intent intento = new Intent("nuovanewsavis"); intento.setAction("nuovanewsavis"); intento.putExtra("com.example.avis.NUOVANEWS", "Nuova notizia"); this.sendBroadcast(intento);。

{{1}}

没有收到sendBroadcast的额外内容

1 个答案: