Book Image

Android UI Development with Jetpack Compose

By : Thomas Künneth
Book Image

Android UI Development with Jetpack Compose

By: Thomas Künneth

Overview of this book

Jetpack Compose is Android’s new framework for building fast, beautiful, and reliable native user interfaces. It simplifies and significantly accelerates UI development on Android using the declarative approach. This book will help developers to get hands-on with Jetpack Compose and adopt a modern way of building Android applications. The book is not an introduction to Android development, but it will build on your knowledge of how Android apps are developed. Complete with hands-on examples, this easy-to-follow guide will get you up to speed with the fundamentals of Jetpack Compose such as state hoisting, unidirectional data flow, and composition over inheritance and help you build your own Android apps using Compose. You'll also cover concepts such as testing, animation, and interoperability with the existing Android UI toolkit. By the end of the book, you'll be able to write your own Android apps using Jetpack Compose.
Table of Contents (16 chapters)
Part 1:Fundamentals of Jetpack Compose
Part 2:Building User Interfaces
Part 3:Advanced Topics

Moving beyond Android

While Jetpack Compose is the new UI toolkit on Android, its underlying ideas and principles make it attractive for other platforms, too. Let's see why this is the case:

  1. The declarative approach was first implemented on the web.
  2. SwiftUI, Apple's implementation of a declarative UI framework, works well for iPhones, iPads, watches, and macOS devices.
  3. Jetpack Compose UI elements use Material Design, which is designed for different platforms, device categories, and form factors.

Most importantly, core concepts such as state and composable functions are not Android-specific. Therefore, if someone provides the toolchain (for example, the Kotlin compiler and the Compose compiler), any platform capable of showing graphics may be able to execute Compose apps. Certainly, there is an awful lot of work to be done.

For example, the Compose UI must be hosted somewhere. On Android, activities are used. On the web, this would be a browser window...