How to handle Objective-C protocols that contain properties?

Question

I\'ve seen usage of Objective-C protocols get used in a fashion such as the following:

@protocol MyProtocol 

@required

@property (readonly)         


        

Answer 1

The variable, anObject, needs to be defined in your TestProtocolsViewController class definition, the protocol is just informing you that it should be there.

The compiler errors are telling you the truth - the variable doesn't exist. @properties are just helpers after all.