套接字编程未在真实的android设备中连接

Question

I want to send data(simple text) from android to computer and show received text in computer application, for that reason i created 2 applications which first one run in android device(client) and second one run in computer(server). i have created both applications with java language.

when i run android application in genymotion, everything is ok and both applications could connect together but when i run android application in real device applications cannot connect together while both are in same network and ip address is correct.
codes for computer application(server):

try {
     ServerSocket serverSocket = new ServerSocket(9000);
     Socket socket = serverSocket.accept();

     DataOutputStream dataOutputStream = new DataOutputStream(socket.getOutputStream());
     BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));

     while(true){
         String message = bufferedReader.readLine();
         message(message);
     }
} catch (IOException e) {
     e.printStackTrace();
}

codes for android application(Client):

new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                message("Waiting for Connection...");
                socket= new Socket("192.168.1.6", 9000);
                message("Connected...");

                dataOutputStream = new DataOutputStream(socket.getOutputStream());
                bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));

            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }).start();

    btnSend.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if(socket==null){ return; }

            try {
                String message = edtMessage.getText().toString() + "\n";
                dataOutputStream.write(message.getBytes());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    });
         message(message);
     }
} catch (IOException e) {
     e.printStackTrace();
}

screen shot(application connected when i run android application in genymotion

please guide me for resolve that issue. Thanks

Answer 1

You cannot write to the output stream in the handler of an on click listener. You should do that in a thread too.