UIAlertViewStyle property of UIAlertView

Hi Guys,

Hope everybody doing well. Recently I got a requirement in one of my project to create a UIAlertView with "User Name" and "Password" fields. Prior to iOS 5.0, to achieve this functionality we need to subclass UIAlertView and add UITextField as subviews to the UIAlertView.

Initially I thought of subclassing UIAlertView to achieve this functionality, but I came to know that from iOS 5.0 Apple has added a new property "UIAlertViewStyle alertViewStyle" to UIAlertView class.

Following are the various options available for UIAlertViewStyle property :

UIAlertViewStyleDefaultUIAlertViewStyleSecureTextInputUIAlertViewStylePlainTextInputUIAlertViewStyleLoginAndPasswordInput

Now, lets create a single view application and setup the view layout as show below :

Set tags to 1001 to "Default, 1002 to "Secure", 1003 to "Plain" and 1004 to "Login & Password" buttons using xib file.

Add following action method code to your implementation file :

- (IBAction)showAlert:(id)sender

{

    UIAlertView *alertView = [[UIAlertView alloc] init];

    

    switch (((UIButton *)sender).tag)

    {

        // Default Alert View

        case 1001:

            

            alertView.title = @"Default Alert View";

            alertView.message = @"UIAlertViewStyleDefault";

            [alertView addButtonWithTitle:@"OK"];

            

            break;

           

        // Secure Alert View

        case 1002:

            

            alertView.title = @"Secure Alert View";

            alertView.message = @"UIAlertViewStyleSecureTextInput";

            alertView.alertViewStyle = UIAlertViewStyleSecureTextInput;

            [alertView addButtonWithTitle:@"OK"];

            [alertView addButtonWithTitle:@"Cancel"];

            

            break;

            

        // Plain Alert View

        case 1003:

            

            alertView.title = @"Plain Alert View";

            alertView.message = @"UIAlertViewStylePlainTextInput";

            alertView.alertViewStyle = UIAlertViewStylePlainTextInput;

            [alertView addButtonWithTitle:@"OK"];

            [alertView addButtonWithTitle:@"Cancel"];

            break;

          

        // Login ALert View

        case 1004:

            

            alertView.title = @"Login Alert View";

            alertView.alertViewStyle = UIAlertViewStyleLoginAndPasswordInput;

            [alertView addButtonWithTitle:@"OK"];

            [alertView addButtonWithTitle:@"Cancel"];

            break;

    }

    

    [alertView show];

}

Now connect this action to all buttons in xib file to "Touch up inside" UIControlEvent. 

Run application and following is the output :

Default Style :

Secure Style :

Plain Style :

Login & Password :

This saved a lot of time for me. No need to subclass UIAlertView anymore to create a login view. Hope this will save time of your's too.