Warning while adding and using a new method in external library protocol

Question

I am using a external library and one of my view controller is registering as delegate for a class in that framework. Now, at one place I want to execute some code on this d

Answer 1

Write a new protocol that extends the old one, and conform to that, something like:

@protocol MyNewProtocol 
   - (void) myCoolMethod;
@end