Disabling user interaction of the current view on screen

Question

My app has many views and their respective controllers. Now I have a set of model classes with business logic in them. One of the model classes(subclass of NSObject) has the res

Answer 1

I've done something very similar to this. I disable all user interaction by placing a translucent black view over everything else, which visually distinguishes the fact that the entire UI is disabled, and blocks all touch events. I usually just add this view to the window class after I've added the view controller's view to the window, and then just hide it when it's not needed.