ต้องการสร้าง dialogalert แบบ android เมื่อ login ถูกอยากให้กด yes แล้ว ไปอีกหน้าถ้าไม่ใช่ก็กลับหน้าเดิมอะครับ

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<Button
	android:text="Two Button AlertDialog"
	android:id="@+id/btnTwoButton"
	android:layout_width="200dip"
	android:layout_height="wrap_content"
	android:layout_gravity="center_horizontal"
/>
</LinearLayout>

package com.androidjump.app.simpledialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {
    /** Called when the activity is first created. */
	private Button btnOneButton, btnTwoButton, btnList, btnRadio;

	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    
      
        //link ไปที่ปุ่มหน้า Main.xml ที่สร้างไว้
        btnTwoButton = (Button)findViewById(R.id.btnTwoButton);
        btnTwoButton.setOnClickListener(
        	new OnClickListener() {
				public void onClick(View v) {
					// TODO Auto-generated method stub
					getTwoButtonAlertDialog();
				}      	
        	}	
        );
        
        

       
    
    }

// ใส่ event getTwoButtonAlert 
	public void getTwoButtonAlertDialog() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setMessage("Hello, I am two buttons dialog.")
		       .setCancelable(false)
		       .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
		           public void onClick(DialogInterface dialog, int id) {
		        	   dialog.cancel();
		           }
		       })
		       .setNegativeButton("No", new DialogInterface.OnClickListener() {
		           public void onClick(DialogInterface dialog, int id) {
		                dialog.cancel();
		           }
		       });
		builder.show();
	}
	

}