버튼을 누르면 자바서버로 메시지를 보내는 건데 에뮬레이터로 돌리면 실행이 되는데 핸드폰으로 옴기면 연결이 안되요

package air.remote;

import java.io.BufferedInputStream;
 

import java.io.BufferedWriter;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStreamWriter;

import java.io.PrintWriter;

import java.net.Socket;

import android.app.Activity;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

import android.widget.Toast;

public class Remote extends Activity {

    private Socket socket;

    private BufferedWriter networkWriter;

    private String ip = "192.168.0.6"; // IP

    private int port = 9999; // PORT번호
   
    private int count = 0;
 

    @Override

    protected void onStop() {

        // TODO Auto-generated method stub

        super.onStop();

        try {

            socket.close();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        try {

            setSocket(ip, port);

        } catch (IOException e1) {

            // TODO Auto-generated catch block

            e1.printStackTrace();

        }

        Button btn = (Button) findViewById(R.id.on);
        Button btn1 = (Button) findViewById(R.id.off);
        Button btn2 = (Button) findViewById(R.id.up);
        Button btn3 = (Button) findViewById(R.id.down);
        Button btn4 = (Button) findViewById(R.id.play);

        btn.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

              
                    PrintWriter out = new PrintWriter(networkWriter, true);
                    out.println("1");
                    TextView view = (TextView)findViewById(R.id.on);
                }
        });
        btn1.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

              
                    PrintWriter out = new PrintWriter(networkWriter, true);
                    out.println("2");
                    TextView view = (TextView)findViewById(R.id.off);
                }
        });
        btn2.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

              
                    PrintWriter out = new PrintWriter(networkWriter, true);
                    out.println("3");
                    TextView view = (TextView)findViewById(R.id.up);
                }
        });
        btn3.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

              
                    PrintWriter out = new PrintWriter(networkWriter, true);
                    out.println("4");
                    TextView view = (TextView)findViewById(R.id.down);
                }
        });
        btn4.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

              
                    PrintWriter out = new PrintWriter(networkWriter, true);
                    out.println("5");
                    TextView view = (TextView)findViewById(R.id.play);
                    if(count == 0)
                    {
                     view.setText("중지");
                     count = 1;
                    }
                    else if(count == 1)
                    {
                     view.setText("재생");
                     count = 0;
                    }
                }
        });
       
    }

    public void setSocket(String ip, int port) throws IOException {

        try {

            socket = new Socket(ip, port);

            networkWriter =

new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));

        } catch (IOException e) {

            System.out.println(e);

            e.printStackTrace();

        }

    }

}