Question

I have now made it able on my app to move a image around, scale it, pinch it.. you name it. But my question is, how can i make it able for the app to register when a UIImageView is at another a UIImageView?

Answer 1

You may wish to look at the CGGeometry Reference.

Specifically you should look at CGRectIntersectsRect to see if the frames of the two UIImageView‘s intersect.

BOOL isImageViewOverlapping = CGRectIntersectsRect(imageViewOne.frame, imageViewTwo.frame);