Understanding Prootcol Property Declarations Objective-C protocols define method contracts rather than implementations. Since protocols serve as interface specifications, they cannot contain stored properties—the actual storage must be provided by conforming classes. Protocols can, however, declare...
Achieving Loose Coupling with Delegates and Data Sources Objects frequently need to communicate without creating tight dependencies. Objective‑C’s protocol‑based delegation pattern provides a clean12 way to define a contract that a receiving object agrees to fulfill. The delegate protocol typical fo...
What is a Protocol? A protocol in Objective-C serves a similar purpose to interfaces in Java. It defines a contract of methods that a class must implement, without providing any implementation details or member variables. Key Characteristics of Protocols Protocols exist solely to declare collections...