State of the Art Android App Development in Kotlin

Configure the Android manifest for internet access, set up the project and module build.gradle files, and add dependencies for lifecycle, retrofit, glide, dagger, navigation, and data binding.

Clean up the app by removing buttons, icons, and views from the list and detail fragments, preserve navigation actions, and prepare a clean architecture for defining screens in next section.

Load animal images from the Bakken API using Glide, with a progress drawable placeholder and an error image, while extending image view to auto load and cache images.

Refactor the detail fragment to use data binding by updating the layout, defining an animal data variable, binding name, location, lifespan, and image via a binding adapter in the layout.

Explore dependency injection in Android using Dagger 2 to separate object creation from usage, enabling easier testing and configuration through modules, components, and annotations like @Inject, ATTFIELD, singleton, and qualifier.

Define qualifiers to distinguish different shared preferences contexts in Dagger; inject activity versus application context, and use provides and singleton annotations to configure context-specific helpers.

Create a unit test for animals API success path by mocking the animal service, validating the view model refresh returns a list with size one and no loading or errors.

Advance state of the art android app development in kotlin by examining the animals api failure path, including key retrieval, loading state, and error handling in unit tests.

Celebrate completing the course by implementing the code, building the app locally, and mastering Android development in Kotlin; continue applying these concepts in future projects and day-to-day work.