Hey all. Recently I've migrated my open-source ap...

# android

[Paul]

Hey all.

Recently I've migrated my open-source app called Gamedge to be a pure Jetpack Compose app. It utilizes all the latest libraries & tools in the Android development world.

A couple of thoughts: 🧵

https://github.com/mars885/gamedge

[Paul]

I find it extremely easy to use & build new UI once you grasp how it works. This is is definitely the future of the Android development, in my opinion.

[Paul]

The biggest one is that Compose as of 1.2.0 does not have 1 to 1 parity with the View system.

For example, MotionLayout support for Compose lacks some features like OnSwipe gestures. Another one is the ability to control the zIndex of composable transitions. Also, tooling support like rendering previews does not work far too often.

[Paul]

To view the whole list of issues, take a look at the following link:
https://github.com/mars885/gamedge/issues

[Paul]

A couple of stats before & after migration to Compose.

Before:
- Total lines: 40,847
- APK Release Size with R8: 4.7 MB

After:
- Total lines: 37,822
- APK Release Size with R8: 4.7 MB

Less lines of code due to removal of verbose XML & APK size stayed around the same.

[Paul]

Overall, it's been a fun journey migrating the app from the View system to a pure Jetpack Compose one.

[marlonlom]

How did you handle data surviving across screen rotating ?

[Paul]

@marlonlom I'm using the ViewModel class, which takes care of it.