Book Image

Kotlin Standard Library Cookbook

By : Samuel Urbanowicz
Book Image

Kotlin Standard Library Cookbook

By: Samuel Urbanowicz

Overview of this book

For developers who prefer a more simplistic approach to coding, Kotlin has emerged as a valuable solution for effective software development. The Kotlin standard library provides vital tools that make day-to-day Kotlin programming easier. This library features core attributes of the language, such as algorithmic problems, design patterns, data processing, and working with files and data streams. With a recipe-based approach, this book features coding solutions that you can readily execute. Through the book, you’ll encounter a variety of interesting topics related to data processing, I/O operations, and collections transformation. You’ll get started by exploring the most effective design patterns in Kotlin and understand how coroutines add new features to JavaScript. As you progress, you'll learn how to implement clean, reusable functions and scalable interfaces containing default implementations. Toward the concluding chapters, you’ll discover recipes on functional programming concepts, such as lambdas, monads, functors, and Kotlin scoping functions, which will help you tackle a range of real-life coding problems. By the end of this book, you'll be equipped with the expertise you need to address a range of challenges that Kotlin developers face by implementing easy-to-follow solutions.
Table of Contents (11 chapters)

Applying coroutines for asynchronous UI programming on Android, JavaFX, and Swing

Most of the JVM-based GUI frameworks have one thing in common—they run a specific thread that is responsible for updating the state of the application's UI. In this recipe, we're going to learn how to execute tasks asynchronously in the background and switch to the UI thread to update the GUI of the app. We're going to create a simple counter, which is going to display the incremented integer value every second. The mechanism responsible for infinite counter-incrementing should operate in the background, however, it should switch to the UI thread context every time it needs to perform an update of the UI state.

Getting ready

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