Android Authentication in MVP

This github repository shows you how I have implemented the MVP + repository architecture for authentication(signIn/login etc...) on android with the unit test cases implemented for each use case. You may download this github repository and use the same in your project. It gives you the freedom to change the repository(backend) and use the desired repository(backend) or model your app is working on without much code change.
I will be implementing the backend in firebase and some other ways to show you how this architecture gives you the flexibility.

What is MVP?

MVP is a software development pattern which uses a layered architecture to abstract the backend implementation to the view(UI) and vice-versa. This abstraction provides independence between the layers, makes the code unit testable and very easy to read and maintain by other developers. Here are the roles of every component:

• Model the data layer. Responsible for handling the business logic and communication with the network and database layers.
• View the UI layer. Displays the data and notifies the Presenter about user actions.
• Presenter retrieves the data from the Model, applies the UI logic and manages the state of the View, decides what to display and reacts to user input notifications from the View. Since the View and the Presenter work closely together, they need to have a reference to one another. To make the Presenter unit testable with JUnit, the View is abstracted and an interface for it used. Architecture Design

How to Use?

• Download or clone this github repository.
• Change the package name to your app's package name.
• Make changes as required to the UI in the views package.
• Change or add a repository in the repository package
• Add test cases to the presenters