pinch and expand UIView

I'm planning to create a UIView with UIButtons and I want that UIView to add in a UIViewScroll. But my problem is that UIView is larger than the actual screen size of the phone, so I want开发者_如何学Python a pinch or expand gesture to zoom in or zoom out the view. My question is how can I implement the resizing of the view including its sub views like the UIButtons? Should I recreate all the objects inside of the view with new dimensions?

Thanks.

look at the autoresizingMask property of the UIView. you can set this mask to all subviews of your main view. then they will change their frames automatically.