Book Image

Android UI Development with Jetpack Compose - Second Edition

By : Thomas Künneth
5 (1)
Book Image

Android UI Development with Jetpack Compose - Second Edition

5 (1)
By: Thomas Künneth

Overview of this book

Compose has caused a paradigm shift in Android development, introducing a variety of new concepts that are essential to an Android developer’s learning journey. It solves a lot of pain points associated with Android development and is touted to become the default way to building Android apps over the next few years. This second edition has been thoroughly updated to reflect all changes and additions that were made by Google since the initial stable release, and all examples are based on Material 3 (also called Material You). This book uses practical examples to help you understand the fundamental concepts of Jetpack Compose and how to use them when you are building your own Android applications. You’ll begin by getting an in-depth explanation of the declarative approach, along with its differences from and advantages over traditional user interface (UI) frameworks. Having laid this foundation, the next set of chapters take a practical approach to show you how to write your first composable function. The chapters will also help you master layouts, an important core component of every UI framework, and then move to more advanced topics such as animation, testing, and architectural best practices. By the end of this book, you’ll be able to write your own Android apps using Jetpack Compose and Material Design.
Table of Contents (18 chapters)
Part 1: Fundamentals of Jetpack Compose
Part 2: Building User Interfaces
Part 3: Advanced Topics


This chapter aimed to provide a more detailed look at state in Compose apps. We started by exploring the differences between stateful and stateless composable functions. You learned their typical use cases and why you should try to keep your composables stateless. Hoisting state is a tool to achieve that. We covered this important topic in the second main section. I also showed you that you can make your composable functions more reusable by passing logic as parameters, rather than implementing it inside the composable. The previous section explored the integration of a Compose UI hierarchy in activities related to how to retain user input. We looked at the differences between remember {} and rememberSaveable {}, and I gave you a glimpse of how bigger Compose apps can benefit from ViewModel classes.

Chapters 1 to 5 introduced you to various aspects of Jetpack Compose, such as composable functions, state, and layout. Chapter 6, Building a Real-World App, will focus on one...