iOS/iPhone Textbox in Popup - UITextField / UIAlertView (Objective-C,iPhone)

    CGAffineTransform myTransform = CGAffineTransformMakeTranslation(0, 60);
    [alert setTransform:myTransform];
    
    
    UITextField *myTextField = [[UITextField alloc]
                                initWithFrame:CGRectMake(12, 45, 260, 25)];
    [myTextField setTag:10251];
    [myTextField setBackgroundColor:[UIColor whiteColor]];
    [alert addSubview:myTextField];

- (void) alertView:(UIAlertView *) alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    UITextField* myField = (UITextField*)[alertView viewWithTag:10251];
    lblResult.text = [myField text];
}

//
//  ViewController.h
//
//  Created by Weerachai on 10/27/55 BE.
//  Copyright (c) 2555 Weerachai. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
{
    IBOutlet UILabel *lblResult;
}

- (IBAction)btnPopup:(id)sender;

@end

//
//  ViewController.m
//
//  Created by Weerachai on 10/27/55 BE.
//  Copyright (c) 2555 Weerachai. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (void)dealloc {
    [lblResult release];
    [super dealloc];
}

- (IBAction)btnPopup:(id)sender {
    
    UIAlertView *alert = [[UIAlertView alloc]
                          initWithTitle:@"Enter Your Name."
                          message:@"Hi!"
                          delegate:self
                          cancelButtonTitle:@"Cancel"
                          otherButtonTitles:@"OK!", nil];
    
    
    
    CGAffineTransform myTransform = CGAffineTransformMakeTranslation(0, 60);
    [alert setTransform:myTransform];
    
    
    UITextField *myTextField = [[UITextField alloc]
                                initWithFrame:CGRectMake(12, 45, 260, 25)];
    [myTextField setTag:10251];
    [myTextField setBackgroundColor:[UIColor whiteColor]];
    [alert addSubview:myTextField];
    
    
    [alert show];
    [alert release];
    [myTextField release];
    
}

- (void) alertView:(UIAlertView *) alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    UITextField* myField = (UITextField*)[alertView viewWithTag:10251];
    lblResult.text = [myField text];
}

@end