flip animation of button image/background
Is it possible to use the flip animation to change the image/background of a UIButton from one image to another image. 

I could only find the flip effect from [UIView animation] but not in CA or CATransition.

Thanks in advance


Leo
flip animation of button image/background
===

Is it possible to use the flip animation to change the image/background of a UIButton from one image to another image. 

I could only find the flip effect from [UIView animation] but not in CA or CATransition.

Thanks in advance


Leo