Android Studio project with a Scala 3 module

A template project for the latest Android Studio with an added Scala 3 module.

What about a full Scala 3 template?

Android Studio is currently quite opinionated towards Kotlin, so a Java module is not an option you get straight from the New > New Project… menu.

If you want the same project starting from the Java-only template and then entirely converted to Scala 3, please check https://github.com/mcallisto/Scala-3-Android-Studio-Java-template.

Aim

Helping the adoption of Scala in Android Studio.

This is the project you get if:

1. in Android Studio Meerkat Feature Drop | 2024.3.2 you choose from menu:

   New > New Project… > Empty Activity (template for Phone and Tablet)

2. you then add a minimal Scala 3.7.0 module named core and call it from the app module

3. you use STTP to query ScalaDex and display the results. Credits and big thanks for this to @keynmol

Notes

Why Scala 3.7.0?

Because is the first Scala version shipping scala/scala3#22632. The emitted Scala code is more compatible with Android ART.

Since currently all Scala libraries are not yet published to Maven Central with this version, the workaround is to let Android R8 minify the code, so minifyEnabled true must be set even for debug builds.

Building Scala with Gradle

The Kotlin app module is built using the official Android Gradle Plugin (AGP).

The Scala 3 core module is built with the official Gradle Scala Plugin, which is not compatible with AGP.