Implement a pure virtual method in Objective-C

Question

I want to go to there. Seriously though, how does one implement a pure virtual method in an \"Apple\" way? Do you use a Protocol with your base class and throw exceptions on

Answer 1

You should use the:

- (void)doesNotRecognizeSelector:(SEL)aSelector method. 

As noted by Apple, here: https://developer.apple.com/library/mac/#documentation/cocoa/reference/Foundation/Classes/NSObject_Class/Reference/Reference.html