Blazing Fast UI Development with Compose Hot Reload

on YouTube ↗33m

" summary

Compose Hot Reload gives live UI updates on a running Compose desktop JVM app without relaunching, keeping most mutable state while loading new bytecode via a JetBrains runtime. Setup requires the Gradle hot reload plugin (beta 8), a resolver convention to use JetBrains runtime JBR, and a Java agent that uses DCVM‑based class redefinition to migrate objects. Works across modules, supports new files and API changes, and shows fast iterations — demo hits 27 hot reloads — but requires a desktop JVM target.

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" chapters (19)

1. 0:00Compose Hot Reload intro
2. 1:02Demo app with Hot Reload
3. 2:27Changing layout constants
4. 4:37Adding UI components
5. 5:40Fixing click handlers
6. 7:05Feature flags and animations
7. 9:09How Hot Reload works
8. 13:21Tracking Compose groups
9. 16:10State during UI changes
10. 18:36State preservation demo
11. 20:42Performance and modular projects
12. 22:07Handling compilation errors
13. 22:50Changing logic and features
14. 27:06Getting started with Hot Reload
15. 28:52Desktop target options
16. 30:16Hot Reload in IntelliJ IDEA
17. 31:19Amper and small projects demo
18. 32:45Resources and learning
19. 33:06Q&A

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