How to resize UIView by dragging from its edges?

Question

In my iPad app, I want the users to be able to resize a UIView by dragging the view from its edges. I\'ll be using iOS 5 SDK, so what\'s the cleanest approach t

Answer 1

I'm guessing your UI involves some kind of handles on the sides of the view, and attaching a simple UIPanGestureRecognizer to those handle controls makes the whole problem pretty easy.

In the action method from the gesture recognizer, just get the -translationInView: relative to the view you're resizing, save off the original frame when the gesture recognizer's state is UIGestureRecognizerStateBegan, and adjust the view's frame continually while the state is UIGestureRecognizerStateChanged.