如何在UIAlertView中为用户标识和密码添加uitextfield？

Question

我正在创建一个应用程序，我需要在UIAlertView中为用户登录名创建两个UITextField或TextBox用户ID和密码。我尝试了一些东西，但是在这里创建的textfield变得非常大，几乎覆盖了整个警报视图。请有人帮助我如何组织警报视图内的文本框和标签等。我需要 - 应该有一个标签为“用户ID”和“密码”的小文本框。那么该怎么做？请帮帮我。提前Thanx。

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"User Login" message:@"Please Enter the Following \n\n\n\n\n\n\n" delegate:self cancelButtonTitle:@"Close" otherButtonTitles:@"Sign In", nil]; 


UILabel *lblUserName = [[UILabel alloc] initWithFrame:CGRectMake(20, 70, 85, 21)]; 
lblUserName.tag =2; 
//lblUserName.backgroundColor = [UIColor darkGrayColor]; 
lblUserName.font = [UIFont systemFontOfSize:15.0]; 
lblUserName.text = @"User Name:"; 
lblUserName.textColor=[UIColor whiteColor]; 

//[lblUserName setFont:[UIFont fontWithName:@"TimesNewRomanPS-boldMT" size:8]]; 
lblUserName.backgroundColor = [UIColor clearColor]; 
[alert addSubview:lblUserName]; 

UITextField *txtUserName; 

//if(txtUserName==nil) 
txtUserName = [[UITextField alloc] initWithFrame:CGRectMake(89, 50, 160, 30)]; 

txtUserName.tag = 3; 
txtUserName.borderStyle = UITextBorderStyleBezel; 
txtUserName.textColor = [UIColor whiteColor]; 
txtUserName.font = [UIFont systemFontOfSize:12.0]; 
txtUserName.placeholder = @"User ID"; 
[alert addSubview:txtUserName]; 



alert.tag=3; 
[alert show]; 
[alert release]; 

Answer 1

从iOS5开始，UIAlertView支持使用Alert Style UIAlertViewStyleLoginAndPasswordInput的登录屏幕。在UIAlertView Class Reference

Answer 2

UIAlertView *alert =[UIAlertView alloc] init]; 
alert.delegate =self //make sure to add the UIAertViewDelegate in the .h file 
alert.alertViewStyle =UIAlertViewStyleLoginAndPasswordInput; 
alert.message [email protected]"Please login"; 
[alert show]; 
[alert release]; 

然后在clickedButtonAtIndex委托方法

的更多信息：

{ 
    UITextField *username = [alertView textFieldAtIndex:0]; 
    UITextfield *password = [alertView textFieldAtIndex:1]; 
    NSLog(@"Username %"@ password %"@,username.text, password.text); 
}