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Objective-C Language Protocols Conforming to Protocols It is also possible for a class to conform to multiple protocols, by separating them with comma. Like when conforming to a single protocol, the class must implement each required method of each protocols, and each optional method you choose to implement.
Advertisements. Objective-C allows you to define protocols, which declare the methods expected to be used for a particular situation. Protocols are implemented in the classes conforming to the protocol.
Swift supports optional chaining, typecasting, generics, protocols, subscripts, etc., whereas Objective C allows dynamic dispatch, auto-generation of accessors to access member variables and properties, and allows a method and a name to share the same identifier.
The Objective-C runtime is a runtime library that provides support for the dynamic properties of the Objective-C language, and as such is linked to by all Objective-C apps. Objective-C runtime library support functions are implemented in the shared library found at /usr/lib/libobjc.
There is an -[NSObject conformsToProtocol:] method to check whether a specific protocol is adopted or not. Is there any method to get all adopted protocols for a class, rather than checking a list?
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