Lessons learned from porting to Swift and Kotlin

on YouTube ↗51m

" summary

SpotHero migrates iOS to Swift and Android to Kotlin and measures real impact: about one third Swift in source lines (excluding pods) and roughly 10% converted to Kotlin by Aug 2017 (over 15% a month later). Swift prevents the iOS 8 enum crash that caused checkout failures, but adds ~8MB app size penalty for bundled Swift runtimes. Kotlin adoption is slower pre-official Google support; practical wins include null-safety removing many NPEs and Android synthetic view bindings replacing findViewById. Tests, code review and incremental rolls prove essential.

AI-written summary · about

" chapters (10)

1. 0:00Introduction and background
2. 6:05Selling new languages to management
3. 12:07Starting small with new tech
4. 18:08Fixing crashes with new features
5. 22:01Advanced features and maintainability
6. 27:20Testing and team collaboration
7. 34:19Following language creators
8. 37:56Avoiding yak shaving
9. 39:20Summary and final advice
10. 42:31Q&A session

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