How to modularize an iOS app with SPM packages

This is the third part of a mini series where I share lessons from my day job. This time it's all about how I take a repo where all its code is in the main iOS target and modularize it using local SPM packages. In this way, I can easily: - reuse code in different targets - work isolated in modules with faster speed of iteration - have clear boundaries between modules of the app The full sample code from this video can be found in: - Initial state: https://github.com/fespinoza/Youtube-SampleProjects/tree/movie-catalog-routing/00-routing-and-deep-links - End state: https://github.com/fespinoza/Youtube-SampleProjects/tree/movie-catalog/modularize-into-spm-packages #swiftUI #spm #swift #iOS #architecture #modularization *Amazon Links are affiliate links -------------------------------- 👋 You can find me in -------------------------------- - BlueSky: https://bsky.app/profile/fespinozacast.bsky.social - Github: https://github.com/fespinoza - BuyMeACoffee: https://buymeacoffee.com/craftingswift -------------------------------- 📸 Camera Gear -------------------------------- - Camera: Sony A6700 (https://amzn.to/4iYkLYR) - Lens: Sigma 16mm 1.4 for Sony E (https://amzn.to/4bYAmFz) - Elgato Prompter (https://amzn.to/3A2ZLiY) - Key light: Godox ML100Bi (https://amzn.to/41YCW9Y) - Mic #1: DJI mic 2 + DJI lavalier mic (https://amzn.to/4hL8F4m) - Mic #2: Elgato Wave DX + Elgato Wave XLR (https://amzn.to/4hjvbSR) - M1 Max Macbook Pro (https://amzn.to/3NG5ZIv) - Screen Recording: CleanShot X -------------------------------- 📖 Reading Tools -------------------------------- I have an affiliate link, but I honestly recommend trying readwise. I like how helps you remember what you read. The reader app is excellent for articles too! https://readwise.io/craftingswift/ It gives you an extra month of your trial period -------------------------------- 🏷️ Chapters: -------------------------------- 00:00 - 1. Intro 00:54 - 2. Why Divide 01:50 - 3. How do we divide 03:57 - 4. Example 04:15 - 4.1. The Plan 05:52 - 4.2. Extract Base Models 07:11 - 4.3. Networking Package 07:49 - 4.4. Navigation 09:31 - 4.5. Feature Package 10:48 - 5. Conclusion