raywenderlich Tutorial Team - Kotlin Coroutines by Tutorials (Second Edition): Mastering Coroutines in Kotlin and Android

By Filip Babi & Nishant Srivastava

By Filip Babi and Nishant Srivastava

Copyright 2019 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.

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"To my friends and family. And mostly to my loved one. Thank you for being patient and understanding, when I couldnt grab a cup of coffee or tea and catch up. Huge thanks to everyone whos supported me throughout the entire process, with positive and motivational encouragement. This wouldnt have gone as nearly as smooth without you."

Filip Babi

"I would like to thank the many people who have made this book possible. To my father, who gave me the desire to be a curious soul and learn more. To my mom, who has supported me all along whenever I have had doubts about my own capabilities as a writer. To my friends, Saachi Chawla and Kirti Dohrey, who have always believed in me during my ups and downs. To people who have directly or indirectly been my mentor and helped me through understanding technology at a deeper level whenever I found myself stuck. And lastly, to the team at raywenderlich.com, my co-author, editors and everyone involved in making this book a reality."

Nishant Srivastava

Nishant Srivastava is an author on this book. Nishant is a Sr.Android Engineer at Soundbrenner in Berlin, Germany and an open source enthusiast who spends his time doodling when not hacking on Android. He is a caffeine-dependent life-form and can be found either talking about android libraries or advocating that coffee is the elixir of life at community gatherings. He has been part of two startups in the past (Founding Team Member at OmniLabs, Inc. and one of the first employees at Silverpush) with experience in Android SDK Engineering and Audio Digital Signal Processing(DSP) on Android. While working at his past company (Silverpush), he developed the companys patented UAB (Unique Audio Beacon) Technology.

Filip Babi is an author of this book. He is an experienced Android developer from Croatia, working at the Five Agency, building world-known applications, such as the RosettaStone language-learning application and AccuWeather, the globally known weather reporting app. Previously he worked at COBE d.o.o., a German-owned mobile agency, which is partners with the biggest German media company. He's enthusiastic about the Android ecosystem, focusing extensively on applying Kotlin to Android applications, and building scalable, testable and user-friendly applications. Passionately building up good spirit in local development groups in Croatia, focusing on lectures, education, and engagement of new, aspiring developers in the Croatian IT community. But also pursuing global conferences, meetups, and IT fests. Altruistic when it comes to consulting and mentoring, trying to give help to everyone, whenever possible, motivated by the ideology that the Android ecosystem we live in is only as good as we make it.

Eric Crawford is a technical editor of this book. Eric is a Senior Software Developer at John Deere, where he bounces between iOS and Android development. Before coming to Deere he did freelance mobile development and serverside web development utilizing Java. In his free time he likes to dabble into other platforms like IOT and cloud computing.

Kevin Moore is a technical editor for the book. He has been developing Android apps for over 9 years and at many companies. He's written several articles at www.raywenderlich.com and created the "Programming in Kotlin" video series. He enjoys creating apps for fun and teaching others how to write Android apps.In addition to programming, he loves playing Volleyball and running the sound system at church.

Massimo Carli is the final pass editor of this book. Massimo has been working with Java since 1995 when he co-founded the first Italian magazine about this technology (http://www.mokabyte.it). After many years creating Java desktop and enterprise application, he started to work in the mobile world. In 2001 he wrote his first book about J2ME. After many J2ME and Blackberry applications, he then started to work with Android in 2008. The same year he wrote the first Italian book about Android; best seller on Amazon.it. That was the first of a series of 8 books. he worked at Yahoo and Facebook and he's actually Engineering Tech Lead at Lloyds. He's a musical theatre lover and a supporter of the soccer team S.P.A.L.

Vicki Wenderlich is the designer and artist of the cover of this book. She is Rays wife and business partner. She is a digital artist who creates illustrations, game art and a lot of other art or design work for the tutorials and books on raywenderlich.com. When shes not making art, she loves hiking, a good glass of wine and attempting to create the perfect cheese plate.

To follow along with this book, you'll need the following:

• IntelliJ IDEA Community Edition 2019.1.x: Available at https://www.jetbrains.com/idea/. This is the environment in which you'll develop most of the sample code in this book.

• Jave SE Development Kit 8.: Most of the code in this book will be run on the Java Virtual Machine or JVM, for which you need a Java Development Kit or JDK. The JDK can be downloaded from Oracle at http://www.oracle.com/technetwork/java/javase/downloads/index.html.