Set Keyboard Appearance of UISearchBar, iOS 5 to iOS 7

gistfile1.m

- (void)customKeyboardOnSearchBar:(UISearchBar *)searchBar
{
    for(UIView *subView in searchBar.subviews) {
        if([subView conformsToProtocol:@protocol(UITextInputTraits)]) {
            [(UITextField *)subView setKeyboardAppearance:UIKeyboardAppearanceAlert];
            [(UITextField *)subView setReturnKeyType:UIReturnKeyDone];
        } else {
            for(UIView *subSubView in [subView subviews]) {
                if([subSubView conformsToProtocol:@protocol(UITextInputTraits)]) {
                    [(UITextField *)subSubView setReturnKeyType:UIReturnKeyDone];
                    [(UITextField *)subSubView setKeyboardAppearance:UIKeyboardAppearanceAlert];
                }
            }
        }
    }
}