Android ทำ popup เด้งเวลากรอก ip และ port ผิด พอทำแล้ว popup เด้งแต่ไม่สามารถลิงค์ไปอีกหน้าหนึ่งได้

package com.example.project1;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URI;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.R.integer;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.AlertDialog;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

 
public class MainActivity extends ActionBarActivity {

	EditText getip ;
	EditText getport;
	@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        getip = (EditText)findViewById(R.id.editText1);
        getport = (EditText)findViewById(R.id.EditText01);
        final AlertDialog.Builder adb = new AlertDialog.Builder(this);
        
        Button btnStart = (Button)findViewById(R.id.button1);
        Button btnClose = (Button)findViewById(R.id.Button2);
        
        
        btnStart.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				
				String MyGetIp = getip.getText().toString();
				String RespondConnect =  GetHostData(MyGetIp);//GET(MyGetIp);
				
				
				Log.e("A",MyGetIp);
				Log.e("IP",RespondConnect);
				
				adb.setTitle("IP หรือ  Prot ผิดพลาด");
				adb.setMessage("กรุณากรอก IP หรือ Port ใหม่ค่ะ");
				adb.setNegativeButton("Cancel", null);
				adb.setPositiveButton("Ok", new AlertDialog.OnClickListener() {
				public void onClick(DialogInterface dialog, int arg1) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this,"Your Click OK. " ,
				Toast.LENGTH_LONG).show(); 
				}
				});
				adb.show();
			}
		});
        
        btnClose.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				finish();
			}
		});
    }

    //String MyGetIp = "";
    String	RespondConnect = "";
    public void send(View v)
    {
    	String MyGetIp = getip.getText().toString();
		//String RespondConnect = ""; //=  GetHostData(MyGetIp);//GET(MyGetIp);
		/*
		new Thread(new Runnable() {
		    public void run() {
		    	RespondConnect =  GetHostData(MyGetIp);//GET(MyGetIp)
		    }
		  }).start();
		*/
     	//new HttpAsyncTask().execute("http://hmkcode.com/examples/index.php");
    	String ExeIP = "http://" + MyGetIp;
     	new HttpAsyncTask().execute(ExeIP);
		//Log.e("A",MyGetIp);
		Log.e("Rx",RespondConnect);
		
		String[] RxPackage =  RespondConnect.split("\\|");
		int LentPack = RxPackage.length;
		Log.e("Length", String.valueOf(LentPack));
		if(LentPack>10)
		{
			String GetOK = RxPackage[1].trim();
			Log.e("Pack",GetOK);
			
			//////// to control //////// 
			if(GetOK.equals("OK"))
			{
				Intent itn = new Intent(this,Control.class);
				itn.putExtra("IP", MyGetIp);
				startActivity(itn);
			}
			////////////////////////////
		}	
		//Log.e("IP",RespondConnect);
    }
    
    public String GetHostData(String url)
    {
    	BufferedReader in = null;
        String data = null;
        String line = "";
        
        try{
               HttpClient httpclient = new DefaultHttpClient();

               HttpGet request = new HttpGet();
               //URI website = new URI("http://alanhardin.comyr.com/matt24/matt28.php");
               URI website = new URI(url);
               //URI website = new URI("http://mthai.com");
               
               request.setURI(website);
               HttpResponse response = httpclient.execute(request);
               in = new BufferedReader(new InputStreamReader(
                       response.getEntity().getContent()));

               // NEW CODE
               line = in.readLine();
               //textv.append(" First line: " + line);
               // END OF NEW CODE

               //textv.append(" Connected ");
           }catch(Exception e){
               Log.e("log_tag", "Error in http connection "+e.toString());
           }
    	
    	return(line);
    }
    
    public String GET(String url){
        InputStream inputStream = null;
        String result = "";
        try {
 
            // create HttpClient
            HttpClient httpclient = new DefaultHttpClient();
 
            // make GET request to the given URL
            HttpResponse httpResponse = httpclient.execute(new HttpGet(url));
 
            // receive response as inputStream
            inputStream = httpResponse.getEntity().getContent();
 
            // convert inputstream to string
            if(inputStream != null)
                result = convertInputStreamToString(inputStream);
            else
                result = "Did not work!";
 
        } catch (Exception e) {
            Log.d("InputStream", e.getLocalizedMessage());
        }
 
        return result;
    }
 
    private String convertInputStreamToString(InputStream inputStream) throws IOException{
        BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream));
        String line = "";
        String result = "";
        while((line = bufferedReader.readLine()) != null)
            result += line;
 
        inputStream.close();
        return result;
 
    }
    
    // check network connection
    public boolean isConnected(){
        ConnectivityManager connMgr = (ConnectivityManager) getSystemService(this.CONNECTIVITY_SERVICE);
            NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
            if (networkInfo != null && networkInfo.isConnected()) 
                return true;
            else
                return false;   
    }
    
    private class HttpAsyncTask extends AsyncTask<String, Void, String> {
        @Override
        protected String doInBackground(String... urls) {
 
            return GET(urls[0]);
        }
        // onPostExecute displays the results of the AsyncTask.
        @Override
        protected void onPostExecute(String result) {
            Toast.makeText(getBaseContext(), "Received!", Toast.LENGTH_LONG).show();
            getport.setText(result);
            RespondConnect = result;
            //Log.e("port",result);
       }
    }
    
    
    
    
    
   
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {

        public PlaceholderFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main, container, false);
            return rootView;
        }
    }

}