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

there is actually a private api on uiview to get the uiviewcontroller it belongs to. Very handy ;) My guess is when a view is added to a view controller(controller.view) this property is set.