How to Customize UIActionSheet buttons in iOS

- (void)willPresentActionSheet:(UIActionSheet *)actionSheet  // before animation and showing view

{

    //To Grayed out Cancel button if there is no loaded image

    for (UIView* view in [actionSheet subviews])

    {

        if ([[[view class] description] isEqualToString:@"UIAlertButton"])

        {

            if ([view respondsToSelector:@selector(title)])

            {

                NSString* title = [view performSelector:@selector(title)];

                

                if ([title isEqualToString:@"Cancel"] && [view respondsToSelector:@selector(setEnabled:)])

                {

                    if(imageView.image == nil)

                    {

                        view.backgroundColor = [UIColor grayColor];

                        view.alpha = 0.5;

                    }

                }

            }

        }

    }

}

iPhone Disabling UIActionSheet buttons

http://stackoverflow.com/questions/743636/iphone-disabling-uiactionsheet-buttons