Question

If I am using multiple viewControllers, do I need to create a separate UIViewContoller class for each one of them or can I associate this same new class with each individual viewController? Under what circumstances would I create a new class to associate with a separate VC?

thanks.

Answer 1

View controllers manage the logic of your view, providing a way to channel the data between the view and the mode, and react to events initiated by end-users through the user interface.

If multiple views happen to share the same logic of model-view interaction, it is a good idea to share view controllers among them. However, this is somewhat rare: in practice, different views call for different view controllers. So in practice you create a new class for a new view controller almost every time that you need a view controller. You can also start with several view controllers, and then unify some of them if you spot sufficient number of commonality in their code.