How to customize UIAlertView? Will Apple approve it?

Question

I am using a custom UIAlertView with UITextField to get password from the user.

I have been told that this custom view may cause my App to get

Answer 1

I think there is a better way to solve this. Here is the code snippet

UIAlertView *passwordAlert = [[UIAlertView alloc]                                       
                              initWithTitle:@"Enter Password" message:@""
                              delegate:self 
                              cancelButtonTitle:nil                    
                              otherButtonTitles:@"Submit", nil];

passwordAlert.alertViewStyle = UIAlertViewStyleSecureTextInput;

(You can find related implementations in prodeveloper blog)

But this works fine on iOS 5.0 and above only. Please make a note of it. And Apple will certainly approve it.