The Dark Art of Native APIs

on YouTube ↗45m

" summary

Shows concrete React Native bridge code and how Objective‑C/Swift native modules actually move heavy work off the JavaScript/main thread. Implements image and video processing as native components, measures CPU and frame handling (mentions 1080 frames and CGPoint/CGFloat math), walks through Xcode and tooling, and demos a hello‑world native component up to an integrated app. Presents which calls are synchronous versus async and what breaks or works in practice.

AI-written summary · about

" chapters (13)

1. 0:00Introduction to native APIs for JavaScript developers
2. 3:00Why JS devs struggle with native APIs
3. 6:12Hidden costs of JS-native bridges
4. 9:49Performance pitfalls in native APIs
5. 13:42Debugging native APIs examples
6. 17:24Objective-C and Swift: Key differences for JavaScript developers
7. 21:59Modular native components for mobile
8. 25:54String handling in native APIs
9. 29:43UI components in native dev
10. 33:44Dictionaries and pointers in native APIs
11. 36:52Pointers and memory in native code
12. 40:10Extending React Native with native views
13. 44:01Q&A

" related talks

• 53mHow React-Native shapes the way we think about native appsIlya Ivanov · Mobile Fest 2018
• 27mBuilding high quality mobile apps with React NativeParashuram Narasimhan · State of platforms: Fragments Ahmedabad 2019
• 26mReact Native: Under the HoodAlexander Kotliarskyi · You Gotta Love Frontend 2015
• 28mReact Native Architecture OverviewTadeu Zagallo · React Amsterdam 2016
• 40mKeynote: Building React NativeParashuram N · ReactFoo 2019
• 37mGetting to the Native in React NativeWouter Van Den Broek · React Native EU 2018
• 41mReact Native - A native love storyEnes Kaya · code.talks 2017
• 42mReact Native & Swift: best friends foreverMarco De Nittis · Swift Heroes 2018