如何在UIAlertView中爲用戶標識和密碼添加uitextfield？

Question

我正在創建一個應用程序，我需要在UIAlertView中爲用戶登錄名創建兩個UITextField或TextBox用戶ID和密碼。我嘗試了一些東西，但是在這裏創建的textfield變得非常大，幾乎覆蓋了整個警報視圖。請有人幫助我如何組織警報視圖內的文本框和標籤等。我需要 - 應該有一個標籤爲「用戶ID」和「密碼」的小文本框。那麼該怎麼做？請幫幫我。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

從iOS5開始，UIAlertView支持使用Alert Style UIAlertViewStyleLoginAndPasswordInput的登錄屏幕。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 =@"Please login"; 
[alert show]; 
[alert release]; 

然後在clickedButtonAtIndex委託方法

的更多信息：

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