This is a sample app written in Kotlin following clean architecture principles which fetches random jokes and displays it.

The purpose of this app to showcase:

• Implementation of Jetpack Android Architecture components with Dagger Android and Data Binding to minimize boilerplate code
• Creation of proper components and Subcomponents using Dagger Android and their injection into Activity, Fragment, View Models and Helper Classes
• Performing background task with Kotlin Coroutines

• Kotlin
• AndroidX libraries
• Android Architecture Components
• Android Data Binding
• Dagger 2
• Retrofit
• OkHttp
• Gson
• Kotlin Coroutines

Praxis follows the principles of Clean Architecture with Android Architecture Components.

Presentation Layer contains UI (Activities & Fragments) that are coordinated by ViewModels which execute 1 or multiple UseCases. Presentation Layer depends on Domain Layer.

Domain Layer is the most INNER part of the circle (no dependencies with other layers) and it contains Entities, Use cases & Repository Interfaces. Use cases combine data from 1 or multiple Repository Interfaces.

Data Layer contains Repository Implementations and 1 or multiple Data Sources. Repositories are responsible to coordinate data from the different Data Sources. Data Layer depends on Domain Layer.

Notes: Mapping between response models and transformed models will happen via extension functions defined in transformed model file

Files are suffixed with be defined Class types.

• ViewModels are suffixed with VM. Ex: LoginVM
• UseCases are suffixed with UseCase. Ex: LoginUseCase
• Sources are suffixed with Source. Ex: LoginRemoteSource, LoginLocalSource
• Repositories are suffixed with Repo. Ex: LoginRepo

This project can be used as a template for new apps. This project is continually evolving to integrate other libraries and techniques to keep it up to date.