Moving multiple UIImageViews simultaneously

simple question, I've got a superview holding multiple sub UIIMageViews that I'd like to move simultaneously.

I now about UIIView Animations but not how to launch multiples animation at a time. Any clue about that ?

example animations would be : growing, shrinking, alpha changes, moving along different (radom gen开发者_C百科erated) paths ...

Just wrap them up in the same UIView Animation block, and all the changes will take place simultaneously.