How does UIView nextResponder know what the UIViewController is?

Question

Just as a matter of curiosity, how does the nextResponder method implementation of the UIView class know who is the UIViewController that manages the view? The UIResponder docum

Answer 1

If you look at UIView.h, you can see a member variable named _viewDelegate that is of type UIViewController*, this is probably where the view controller reference is stored when the viewcontroller's view property is set, and where it knows to look when you call nextResponder.