VIPER, IOS, AND FRAMEWORKS

An overview of the VIPER pattern, how to apply it to iOS frameworks and/or applications.

Example of a framework built using the VIPEBC (modified pattern) found here: https://github.com/ustwo/videoplayback-ios

Transcript

1. VIPER, PATTERNS & FRAMEWORKS Sonam Dhingra Software Engineer sonam@ustwo.com | @sdhingra89 September 6, 2017
2. Hi, we’re ustwo
3. INNOVATIVE CLIENT WORK AWARD-WINNING OWN PRODUCTS AND GAMES LAUNCHING NEW VENTURES
4. GAME PLAN 1 2 3 4 Introduction Choosing a Pattern Viper Implementation
5. WHY CARE Design pattern knowledge Cocoa API knowledge Structuring code to fit design Not recommending Viper for everything
6. GOAL By the end of this talk you will have an understanding of the Viper design pattern & how to apply it to your application or framework.
7. LET’S BEGIN
8. MVC MVVM VIPER THE PATTERNS US IOS PEEPS TALK ABOUT...
9. VIPER View Interactor Presenter Entity Router
10. VIPER View Interactor Presenter Entity Router Interface layer, sets up layout of view, updates images and labels ...etc Business logic, manipulation of data, transformation of models, Interacts with API Services, Data Managers and passes results to presenter Formats data for the view, receives input from view, Passes it to the interactor. A simple data representing what is needed for the VIPER Module to function An object responsible for module navigation And application navigation
11. VIPER STANDARD VIEW ROUTER INTERACTOR Input Output Input Output PRESENTER ENTITY VIEWCONTROLLER
12. View Interactor Presenter Entity Router VIPER + FRAMEWORK CONTRACT BUILDER
13. VIPER + FRAMEWORK VIEW CONTRACT INTERACTOR Input Output Input Output PRESENTER BUILDER VIEWCONTROLLER ENTITY View Passes an entity to the builder, and the builder creates the interactor, presenter. Ultimately passes the view back to the view controller
14. ABSTRACTION COOL WHAT? BUT NOW
15. USER STORY CONTROL A VIDEO
16. Actions Action Action SO MANY INTERACTIONS !!!!!!!!
17. SAMPLE FRAMEWORK: VIDEO PLAYBACK KIT https://github.com/ustwo/videoplayback-ios
18. VIPER & AVKIT, AVFOUNDATION VIEW INTERACTOR AVPLAYER PLAYER didTapPlay didTapPlay onPlaySuccess(playerLayer) PRESENTER didTapPlay PLAYER MANAGER - KVO - STATE ENTITY
19. WHY VIPER Protocol oriented Testable Single Responsibility Principle Reusable
20. Sonam Dhingra Software Engineer sonam@ustwo.com | @sdhingra89 THANKS