raywenderlich Tutorial Team - Real-World Android by Tutorials (Second Edition): Professional App Development With Kotlin

By Ricardo Costeira, Subhrajyoti Sen, Kolin Strt & Antonio Roa-Valverde

Ricardo Costeira, Subhrajyoti Sen, Kolin Strt & Antonio Roa-Valverde

Copyright 2022 Razeware LLC.

All rights reserved. No part of this book or corresponding materials (such as text, images, or source code) may be reproduced or distributed by any means without prior written permission of the copyright owner.

This book and all corresponding materials (such as source code) are provided on an as is basis, without warranty of any kind, express of implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in action of contract, tort or otherwise, arising from, out of or in connection with the software or the use of other dealing in the software.

All trademarks and registered trademarks appearing in this book are the property of their own respective owners.

By purchasing Real-World Android by Tutorials, you have the following license:

• You are allowed to use and/or modify the source code in Real-World Android by Tutorials in as many apps as you want, with no attribution required.

• You are allowed to use and/or modify all art, images and designs that are included in Real-World Android by Tutorials in as many apps as you want, but must include this attribution line somewhere inside your app: Artwork/images/designs: from Real-World Android by Tutorials, available at www.raywenderlich.com.

• The source code included in Real-World Android by Tutorials is for your personal use only. You are NOT allowed to distribute or sell the source code in Real-World Android by Tutorials without prior authorization.

• This book is for your personal use only. You are NOT allowed to reproduce or transmit any part of this book by any means, electronic or mechanical, including photocopying, recording, etc. without previous authorization. You may not sell digital versions of this book or distribute them to friends, coworkers or students without prior authorization. They need to purchase their own copies.

All materials provided with this book are provided on an as is basis, without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.

All trademarks and registered trademarks appearing in this guide are the properties of their respective owners.

This section tells you a few things you need to know before you get started, such as what hardware and software youll need, where to find the project files for this book and more.

To follow along with this book, youll need the following:

• Android Studio 4.1.x: Available at https://developer.android.com/studio/. This is the environment in which youll develop most of the sample code in this book.

The materials for this book can be cloned or downloaded from the GitHub book materials repository:

• https://github.com/raywenderlich/adva-materials/tree/editions/2.0

Weve also set up an official forum for the book at https://forums.raywenderlich.com/c/books/real-world-android-by-tutorials. This is a great place to ask questions about the book or to submit any errors you may find.

To my parents, Cu and Manuel, and sister, Joana, who always gave everything they could and more to ensure my education, happiness and well-being. To my partner, Joana, for all the love, support and unbelievable patience while I was writing the book. To my friend, Carlos, for all the support and understanding every time I told him I didnt have the time to help him with GDG and Kotlin Knights events. And finally, to the amazing Android devs from my team at Mindera - Maja, Rita, Garcs, Belchi and Gui - for all the incredible discussions, for teaching me so much and for making me love what I do even more.

Ricardo Costeira

Id like to thank my parents, @StephanieBraganza, Pom-Pom the Pomeranian (IG @PomThePomeranian) and 0xAKBArt, as well as The Wildlife Trade Monitoring Network and The Save Movement for inspiration of the app concepts.

Kolin Strt

Id like to thank my parents, friends, and colleagues, who have always been very supportive and pushed me to achieve more. This book would not have been possible without them.

Subhrajyoti Sen

To Elisabeth, for your patience and support while the laptop stole part of our time.

Antonio Roa-Valverde

Ricardo Costeira is an author of this book. He is an Android dev with a crush on clean code and software architecture. Based in Portugal, Ricardo works as a senior Android engineer at Mindera, where he builds and maintains a retailer app with tens of thousands of daily active users. Ricardo loves Android and the community, so its only natural that he tries to have an active part in it! Hes a co-organizer of GDG Coimbra and a co-founder of Kotlin Knights. He occasionally writes (mostly about Android) at his site, ricardocosteira.com, or for raywenderlich.com. He loves cats, food and the gym and hes a specialty coffee hobbyist. You can find him on Twitter at @rcosteira79.

Subhrajyoti Sen is an author of this book. He is an Android Engineer at KeepTruckin, where he develops apps to improve the trucking industry. Before that, he also worked on apps to improve the experience of Indian investors. He believes in the power of open source and communities, and actively tries to give back. When not writing code, you can find him binge-watching anime, reading up on public policy or playing Rocket League.

Antonio Roa-Valverde is an author of this book. Antonio is a software engineer specialized in Android development. Hes interested in innovation and shaping new products with potential impact on people. Google Developer Group co-organizer in Innsbruck and Munich. You can find him close to the mountains, either hiking, riding the mountain-bike or catching some curvy roads by motorcycle.