Book Image

Learning Concurrency in Kotlin

By : Miguel Angel Castiblanco Torres
Book Image

Learning Concurrency in Kotlin

By: Miguel Angel Castiblanco Torres

Overview of this book

Kotlin is a modern and statically typed programming language with support for concurrency. Complete with detailed explanations of essential concepts, practical examples and self-assessment questions, Learning Concurrency in Kotlin addresses the unique challenges in design and implementation of concurrent code. This practical guide will help you to build distributed and scalable applications using Kotlin. Beginning with an introduction to Kotlin's coroutines, you’ll learn how to write concurrent code and understand the fundamental concepts needed to write multithreaded software in Kotlin. You'll explore how to communicate between and synchronize your threads and coroutines to write collaborative asynchronous applications. You'll also learn how to handle errors and exceptions, as well as how to work with a multicore processor to run several programs in parallel. In addition to this, you’ll delve into how coroutines work with each other. Finally, you’ll be able to build an Android application such as an RSS reader by putting your knowledge into practice. By the end of this book, you’ll have learned techniques and skills to write optimized code and multithread applications.
Table of Contents (11 chapters)

Creating a Kotlin project

When you first open Android Studio, you will be presented with a wizard. To start, select Start a new Android Studio project,as shown in the following screenshot:

Android Studio wizard

Now you will be asked to define the properties of the project. Please make sure that the Include Kotlin support option is enabled:

Setting the properties of a new Android project with Kotlin support

The next step is to select the Android version that you are targeting. The default options are good for this step:

Selecting the target SDKs

Then, select the option to have just an empty activity, and leave its configuration as default:

Selecting an empty activity

Now you will be prompted to select the name for the class and the layout of the activity. Please write MainActivity as the name of the activity, while setting activity_main as the name of the layout: