Large Scale Android App

Proof of concept architecture for a (very) large android application. Designed to handle 100+ modules in a single project, while providing reasonably build speed, and as much isolation between modules as possible.

Main features:

• modules with contracts: big feature modules can reference each other, while still being compiled in parallel.
• plug & play architecture: no kotlin/java required to add or configure a feature module. Just a single line in gradle build script.
• app module without any code: the less code you have in root module, the faster the compilation is.
• shared logic in gradle build files: update configuration for multiple modules at once, add complex features with just one line of code
• heavy use of cache: for the fastest compilation possible

Other nice features:

• UI in Jetpack Compose
• screenshot tests in Papparazzi
• gradle version catalog & typesafe project accessors
• easy versioning, thanks to Axion plugin
• generate project module graph, thanks to ModuleGraphAssert plugin
• check if project is up to date, thanks to GradleVersionsFilter plugin

Module graph:

Nice to know Gradle tasks:

• ./gradlew wrapper --gradle-version X.Y.Z - update Gradle to version X.Y.Z
• ./gradlew generateModulesGraphvizText - view module graph for project
• ./gradlew dependencyUpdates - check if new library versions are available