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AppForce1 Worklog: Refactoring an 8-Year-Old iOS App is Like Restoring a Classic Car

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Manage episode 509074848 series 2812161
Content provided by Jeroen Leenarts. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Jeroen Leenarts or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.

Send me a text

Jeroen shares his real-world iOS development journey working on a legacy app at Dawn Technologies. He details his systematic approach to modernizing an 8-year-old codebase that serves as a critical tool for companies.
• Breaking down a monolithic App Delegate into dedicated managers with single responsibilities
• Leveraging the existing feature flag system to safely deploy new implementations
• Refactoring the walkie-talkie functionality with real-time audio streaming over WebSockets
• Completely rewriting the chat system to use a modern service-based architecture
• Overhauling the location tracking system to use iOS 17's new async location tracking APIs
• Implementing WiFi settings fixes for iOS 16 compatibility using modern APIs
• Maintaining a cleanup branch to remove deprecated APIs and fix compiler warnings
Check out Do iOS, the iOS development conference I'm organizing later this year. Visit do-ios.com for more information and tickets - link in the show notes.
Join me in Amsterdam for Do iOS 2025, tickets and details available now.

Lead Software Developer
Learn best practices for being a great lead software developer.

Lead Software Developer
Learn best practices for being a great lead software developer.
Disclaimer: This post contains affiliate links. If you make a purchase, I may receive a commission at no extra cost to you.
Support the show

Do iOS: https://do-ios.com

Rate me on Apple Podcasts.

Send feedback on SpeakPipe
Or contact me:

Support my podcast with a monthly subscription, it really helps.
My book: Being a Lead Software Developer

  continue reading

Chapters

1. Introduction to the Worklock Episode (00:00:00)

2. App Delegate Cleanup and Architecture (00:03:25)

3. Feature Flag System and Walkie-Talkie (00:06:10)

4. Chat System and Location Tracking (00:10:00)

5. Deep Dive: App Delegate Refactoring (00:12:30)

6. Feature Flags: The Essential Safety Net (00:17:30)

7. Lessons Learned From Legacy Code (00:20:30)

8. Upcoming Work and Cleanup Branch (00:22:45)

226 episodes

Artwork
iconShare
 
Manage episode 509074848 series 2812161
Content provided by Jeroen Leenarts. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Jeroen Leenarts or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.

Send me a text

Jeroen shares his real-world iOS development journey working on a legacy app at Dawn Technologies. He details his systematic approach to modernizing an 8-year-old codebase that serves as a critical tool for companies.
• Breaking down a monolithic App Delegate into dedicated managers with single responsibilities
• Leveraging the existing feature flag system to safely deploy new implementations
• Refactoring the walkie-talkie functionality with real-time audio streaming over WebSockets
• Completely rewriting the chat system to use a modern service-based architecture
• Overhauling the location tracking system to use iOS 17's new async location tracking APIs
• Implementing WiFi settings fixes for iOS 16 compatibility using modern APIs
• Maintaining a cleanup branch to remove deprecated APIs and fix compiler warnings
Check out Do iOS, the iOS development conference I'm organizing later this year. Visit do-ios.com for more information and tickets - link in the show notes.
Join me in Amsterdam for Do iOS 2025, tickets and details available now.

Lead Software Developer
Learn best practices for being a great lead software developer.

Lead Software Developer
Learn best practices for being a great lead software developer.
Disclaimer: This post contains affiliate links. If you make a purchase, I may receive a commission at no extra cost to you.
Support the show

Do iOS: https://do-ios.com

Rate me on Apple Podcasts.

Send feedback on SpeakPipe
Or contact me:

Support my podcast with a monthly subscription, it really helps.
My book: Being a Lead Software Developer

  continue reading

Chapters

1. Introduction to the Worklock Episode (00:00:00)

2. App Delegate Cleanup and Architecture (00:03:25)

3. Feature Flag System and Walkie-Talkie (00:06:10)

4. Chat System and Location Tracking (00:10:00)

5. Deep Dive: App Delegate Refactoring (00:12:30)

6. Feature Flags: The Essential Safety Net (00:17:30)

7. Lessons Learned From Legacy Code (00:20:30)

8. Upcoming Work and Cleanup Branch (00:22:45)

226 episodes

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