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  • Book Overview & Buying Android UI Development with Jetpack Compose
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Android UI Development with Jetpack Compose

Android UI Development with Jetpack Compose

By : Thomas Künneth
4.5 (17)
Buy this Book
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Android UI Development with Jetpack Compose

Android UI Development with Jetpack Compose

4.5 (17)
By: Thomas Künneth
Buy this Book

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)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Download the example code files
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Download the color images
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Conventions used
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Get in touch
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Share Your Thoughts
1
Part 1:Fundamentals of Jetpack Compose
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Part 1:Fundamentals of Jetpack Compose
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2
Chapter 1: Building Your First Compose App
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Chapter 1: Building Your First Compose App
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Technical requirements
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Saying hello to composable functions
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Using the preview
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Running a Compose app
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Summary
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Further reading
3
Chapter 2: Understanding the Declarative Paradigm
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Chapter 2: Understanding the Declarative Paradigm
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Technical requirements
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Looking at the Android view system
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Moving from components to composable functions
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Examining architectural aspects
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Summary
4
Chapter 3: Exploring the Key Principles of Compose
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Chapter 3: Exploring the Key Principles of Compose
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Technical requirements
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Looking closer at composable functions
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Composing and recomposing the UI
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Modifying the behavior of composable functions
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Summary
5
Part 2:Building User Interfaces
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Part 2:Building User Interfaces
6
Chapter 4: Laying Out UI Elements
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Chapter 4: Laying Out UI Elements
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Technical requirements
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Using predefined layouts
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Understanding the single measure pass
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Creating custom layouts
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Summary
7
Chapter 5: Managing the State of Your Composable Functions
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Chapter 5: Managing the State of Your Composable Functions
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Technical requirements
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Understanding stateful and stateless composable functions
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Hoisting state and passing events
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Surviving configuration changes
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Summary
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Chapter 6: Putting Pieces Together
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Chapter 6: Putting Pieces Together
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Technical requirements
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Styling a Compose app
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Integrating toolbars and menus
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Adding navigation
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Summary
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Chapter 7: Tips, Tricks, and Best Practices
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Chapter 7: Tips, Tricks, and Best Practices
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Technical requirements
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Persisting and retrieving state
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Keeping your composables responsive
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Understanding side effects
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Summary
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Part 3:Advanced Topics
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Part 3:Advanced Topics
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Chapter 8: Working with Animations
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Chapter 8: Working with Animations
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Technical requirements
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Using animation to visualize state changes
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Showing and hiding UI elements with animations
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Spicing up transitions through visual effects
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Summary
12
Chapter 9: Exploring Interoperability APIs
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Chapter 9: Exploring Interoperability APIs
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Technical requirements
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Showing Views in a Compose app
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Sharing data between Views and composable functions
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Embedding composables in View hierarchies
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Summary
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Chapter 10: Testing and Debugging Compose Apps
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Chapter 10: Testing and Debugging Compose Apps
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Technical requirements
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Setting up and writing tests
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Understanding semantics
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Debugging Compose apps
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Summary
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Further reading
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Chapter 11: Conclusion and Next Steps
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Chapter 11: Conclusion and Next Steps
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Technical requirements
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Exploring the future
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Migrating to Material You
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Moving beyond Android
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Summary
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Why subscribe?
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Other Books You May Enjoy
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Other Books You May Enjoy
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Packt is searching for authors like you
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Share Your Thoughts

Chapter 10: Testing and Debugging Compose Apps

Programming is a very creative process. Implementing great-looking user interfaces (UIs) with slick animations is pure fun with Jetpack Compose. However, making an outstanding app involves more than just writing code. Testing and debugging are equally as important because no matter how carefully you design and implement your app, bugs and glitches are inevitable, at least in non-trivial programs. Yet there is nothing to fear, as there are powerful tools you can wield to check if your code is acting as intended.

This chapter introduces you to these tools. Its main sections are listed here:

  • Setting up and writing tests
  • Understanding semantics
  • Debugging Compose apps

In the first main section, I will walk you through important terms and techniques regarding testing. We will set up the infrastructure, write a simple unit test, and then turn to Compose specifics—for example, createComposeRule() and createAndroidComposeRule...

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Tech Concepts
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Programming languages
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Android UI Development with Jetpack Compose
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