Question

大家好，这是我在这里的第一个问题，所以请不要对我说残酷，我也要提前为我的坏英语抱歉。所以我正在编写一个简单的应用程序，其工作是在指定的端口上发送和监听UDP协议，当我的应用程序通过主页或后退按钮最小化然后再返回到前面时，我的问题就来了。在它被带回后，我的应用程序抛出了由我的UDP接收器线程引起的EADDRINUSE异常：

public void run() {
        try {
            //Opening listening socket
            Log.d("UDP Receiver", "Opening listening socket on port "+LISTENING_PORT+"...");
            DatagramSocket socket = new DatagramSocket(LISTENING_PORT);
            socket.setBroadcast(true);
            socket.setReuseAddress(true);

            while(true){
                //Listening on socket
                Log.d("UDP Receiver", "Listening...");
                byte[] buf = new byte[1024];
                DatagramPacket packet = new DatagramPacket(buf, buf.length);
                socket.receive(packet);
                message_received = new String(packet.getData()).trim();
                Log.d("UDP", "Received: '" + message_received + "'");
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        pokaztekst = (TextView) findViewById(R.id.textView);
                        pokaztekst.setText(message_received);
                        if(message_received.contains("192.168")){

                            String[] split_message = message_received.split("\"");
                            if (!listaurzadzen.toString().contains(split_message[3])) {

                                listaurzadzen.add(createPlanet("urzadzenie", split_message[3] + "\r\n" + split_message[1]));
                                lv.setAdapter(simpleAdpt);

                            }
                        }

                    }
                });

            }
        } catch (Exception e) {
            Log.e("UDP", "Receiver error", e);
        }
    }
}

我在onCreate方法中启动线程，如下所示：

Thread receiver = new Thread(new Receiver());
@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

        receiver.start();

此错误的后果是应该显示接收消息的listview字段和textview字段为空白。我希望有人可以帮助我。

应用程序从最小化带回来时出现EADDRINUSE错误

0 个答案: