John R.webp

Something old, something new: Adding Jetpack Compose to a large open source Android app

Maia Grotepass

Software Engineer


Jetpack Compose is the new UI framework for Android from Google. Can I take an existing large open source Android app and get the benefit of what compose offers? This talk is a practical report of adding the new UI framework to an existing consumer app. The app I have chosen is Habitica the very popular habit tracking app.

I am presenting this exploration as a travel diary of sorts. It will include:
* Lay of the land: looking at the existing code architecture and assessing where best to add the new framework
* A map and a plan: opinions on architectural choices that make migration easier
* Lists and Columns: a practical demonstration of how to port existing UI
* Here be monsters: recounts of trials and tribulations of working with the existing code and the new framework
* Home again: a demo

Mobile dev since Cupcake. Android GDE. Kotlin enthusiast. Dogs make me happy.