Book Image

Clean Android Architecture

By : Alexandru Dumbravan
Book Image

Clean Android Architecture

By: Alexandru Dumbravan

Overview of this book

As an application’s code base increases, it becomes harder for developers to maintain existing features and introduce new ones. In this clean architecture book, you'll learn to identify when and how this problem emerges and how to structure your code to overcome it. The book starts by explaining clean architecture principles and Android architecture components and then explores the tools, frameworks, and libraries involved. You’ll learn how to structure your application in the data and domain layers, the technologies that go in each layer, and the role that each layer plays in keeping your application clean. You’ll understand how to arrange the code into these two layers and the components involved in assembling them. Finally, you'll cover the presentation layer and the patterns that can be applied to have a decoupled and testable code base. By the end of this architecture book, you'll be able to build an application following clean architecture principles and have the knowledge you need to maintain and test the application easily.
Table of Contents (15 chapters)
Part 1 – Introduction
Part 2 – Domain and Data Layers
Part 3 – Presentation Layer

Chapter 8: Implementing an MVVM Architecture

In this chapter, we will look at how data can be presented by Android applications to end users. We will look over the available architecture patterns for data presentation and analyze the differences between them. Later, we will look at the Model-View-ViewModel (MVVM) pattern, the role it plays in separating business logic and user interface updates, and how we can implement it using Android Architecture Components. Finally, we will look at how we can split the presentation layer across multiple library modules. In the exercises of this chapter, we will integrate the layers built in the previous chapters with a presentation layer built using MVVM, we will create a presentation layer that will plug into the domain layer to fetch and update the data, and we will also look at how we handle common logic between different modules in the presentation layer.

In this chapter, we will cover the following topics:

  • Presenting data in Android...