Protocol Oriented Programming

Advantages of Swift Protocols & POP over conventional OOPs methodology. How Protocols help with injecting, testing and abstracting the code.

Speaker: Rahul Khanna, Lead iOS Engineer at OLX India
https://www.linkedin.com/in/rahul-khanna-27266720/
https://twitter.com/IamRKhanna

Presented at Swift Delhi Chapter 21 hosted by OLX India
https://www.meetup.com/Swift-Delhi/events/264744621/

Transcript

1. Protocol Oriented Programming
2. WHO AM I 2
3. What is a Swift Protocol? A protocol defines a blueprint of methods, properties, and other requirements that suit a particular task or piece of functionality. The protocol can then be adopted by a class, structure, or enumeration to provide an actual implementation of those requirements. - Apple Docs
4. Why use Protocols? • Retroactive conforming ◦ Allows one to take types from a library and protocols from another library and make them work nicely together • Not monolithic • Can be adopted by classes/structs/enums • Encourages the use of value types ◦ Prevents unintended sharing of objects in code • Composition ◦ Multiple conformance • Inheritable • Unit Testing
5. Demo - Network Layer (https://github.com/IamRKhanna/SwiftNetworkLayer) EXPECTATIONS Abstraction Configurability Testability
6. Demo - Network Layer (https://github.com/IamRKhanna/SwiftNetworkLayer)
7. Demo - Network Layer (https://github.com/IamRKhanna/SwiftNetworkLayer)
8. Demo - Network Layer (https://github.com/IamRKhanna/SwiftNetworkLayer)
9. Want more? Protocol-Oriented Programming in Swift - Dave Abrahams Practical Protocol-Oriented-Programming - Natasha Murashev