For developers

Here be random facts you may or may not care about.

Project hierarchy

app: UI front-end -- activities, fragments, adapters, etc.
backup: Implementation of the import/export feature.
consts: App-wide constants (may need to be kept in sync with XML)
data: "Bean" classes that can be stored in the database. No behavior logic.
filters: Filter objects with logic.
loader: Helpers for loading/saving objects from/to content providers.
provider: Our internal database and content provider implementation.
utils: Static utility classes. No internal dependencies, can be reused across apps.
widget: Non-static utility classes. No internal dependencies, can be reused across apps.
xposed: The Xposed module. The only package where XposedBridge.jar dependencies are allowed.