Ever wonder how a large iOS software product is architected, developed and maintained? Wouldn’t it be neat to see the insides of a working iOS application to get ideas on how to solve your own problems? WordPress for iOS might be exactly what you’re looking for. WordPress for iOS has been in the Apple App Store since 2008. It is a huge codebase with a lot of contributors to it. The application is entirely open-sourced which lets you explore how its been architected and how each piece works. In this session you will learn about how WordPress for iOS is developed, the thought that went into the architecture, how a large dev team works with it and also specifics about the implementation in Xcode. You should be able to walk away from this talk with an understanding of how the app works enough to start contributing code for bug fixes and new features. Talk given at 360iDev 2015 in Denver, CO USA.

1. WordPress for iOS
Under the Hood
360iDev 2015
Aaron Douglas

2. About Me
Aaron Douglas
Milwaukee, WI USA
Mobile Developer for Automattic
Inc.
Prior life Enterprise Java
@astralbodies

3. What’s we’re talking about
Purpose of the App
Problems To Solve
Technologies Used
Architecture
Development Process
What’s Missing
Contributing

4. Purpose of the App

5. Text

6. App Walkthrough
fi

7. Problems to Solve

8. Multiple Endpoints
WordPress.com
WordPress.org
XML-RPC
REST API v1, v2
Jetpack Plugin from WordPress.com

9. Inherited Tech Debt
Original contractors
No real planning
Small team/contributor base

10. Web Content
Reader - Rendering
Editor - Creating & Rendering
Markdown
Server-side Plugins

11. Offline Mode
Synchronization
Stability
Consistency
Conflict Resolution

12. Localization
Common strings
GlotPress (http://translate.wordpress.org)
RtL support
Calendars, dates, times

13. Dates/Time
Makes Me
Stabby
http://stabby.today

14. Technologies Used

16. Project Dependencies
CocoaPods
Xcode or AppCode
Git
WordPress.com OAuth2

17. Architecture

18. Data Model (some of it)
WPAccount (0..n)
Blog (0..n)
Blog (0..n)
Post
Page
BasePost
AbstractPost
ReaderPost
Media

19. Service Layers
View Controller
Local Service
Persistence
Remote Service
Interwebs

20. BlogService
LocalCoreDataService
BlogServiceRemote
BlogServiceRemoteREST
BlogServiceRemoteXMLRPCNSManagedObjectContext

21. Component Pods
WordPress-Editor-iOS
WordPressCom-Stats-iOS
WordPressCom-Analytics-iOS
WordPress-Shared-iOS
MediaPicker-iOS

22. The Code

23. Development Process

24. Developers
Automattic
Outside Contributors

25. Development Process
Three week iterations
Planning … well …
Three week testing/stablization - HockeyApp enterprise builds
Git Flow
GitHub Issues

26. What’s Missing

27. What’s Missing
WordPressKit
More Service Layers
Re-evaluate callback paradigm with new Swift techniques
Share Extension
Watch App

28. WordPressKit
Full-blown SDK for WP integration
Authentication, Authorization
Every action (post, edit, commenting, etc)
Reminiscent of Parse SDK
Some day :)

29. Contributing

30. Contributing
GitHub
https://github.com/wordpress-mobile/WordPress-iOS
https://github.com/wordpress-mobile/WordPress-Editor-iOS
https://github.com/wordpress-mobile/WordPressCom-Stats-iOS
WordPress.org Make - http://make.wordpress.org/mobile
WordPress.org Slack - http://chat.wordpress.org

31. Questions?

32. Contact
Twitter: @astralbodies
GitHub: astralbodies
WordPress.org Slack:
astralbodies
E-mail: aaron@automattic.com

33. Thanks :)
Please give feedback via the 360iDev app!