Android

1. App fundamentals

   App components, manifest and process model.

2. Activity lifecycle

   Lifecycle callbacks, configuration changes and state saving.

3. App manifest

   Declaring components, permissions and features.

4. Jetpack Compose UI

   Declarative UI, state and composition.

5. App architecture

   UI layer, domain layer, data layer and ViewModel.

6. ViewModel and lifecycle

   State holders that survive configuration changes.

7. Data and file storage

   Room, DataStore, files and scoped storage.

8. Permissions

   Runtime permissions and permission best practices.

9. Background work

   WorkManager, services and background limits.

10. Build with Gradle

    Android Gradle plugin, build variants and dependencies.

11. Testing

    Local unit tests, instrumented tests, UI tests with Espresso and Compose test APIs.

12. App performance

    Startup, jank, memory and profiling.

13. Security best practices

    Secure storage, networking and app signing.

14. Publishing and Play Console

    App bundles, signing and release tracks.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

Source: endoflife.date