Cooper S. Kotlin Coroutine Confidence. Untangle Your Async, Ship Safety...2025

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Cooper S. Kotlin Coroutine Confidence. Untangle Your Async, Ship Safety...2025

Textbook in PDF format Get the efficiency of asynchronous processing without the compromises. Break free from the outdated trade-offs of callbacks and futures, and enjoy the best of both worlds when you mix suspending functions right into familiar loops and sequential programs. Identify opportunities, anticipate hazards, and master key functions and concepts through real coding projects that put coroutines in context. Unleash the real potential of your code and your hardware by dividing problems into structured tasks that run concurrently. Then sit back and enjoy the confidence that comes from using tried and tested tools and idioms to ship maintainable, fault-tolerant code. Your code can't afford to waste resources or block important threads. Whether you're juggling dozens of inputs and outputs, keeping user interfaces smooth and snappy, or parallelizing heavy workloads, you need a dependable way to write asynchronous code that's responsive, readable, and reliable. Coroutines combine the benefits of asynchronous execution with the straightforward sequential style of familiar blocking functions, so you can write your code the way you want and let Kotlin take care of running it efficiently. Build a mental toolkit of coroutine idioms. Following step-by-step examples and real-world explanations, you’ll speed up your code and improve user experiences. Use structured tasks to safely manage errors and resources. Unlock new suspending functions and old control flow possibilities, all while integrating seamlessly with the tools and libraries you already know. Match coroutine tools instinctively to common tasks, and collaborate with confidence when you follow suspending function conventions. Peek below the surface and see how coroutines keep you safe behind the scenes. Diagnose problems before they happen, and rely on the Three Rules of Jobs to sidestep concurrency pitfalls. Debug and test asynchronous operations, and ship coroutines that make life easy for you, your coworkers, and your users. What You Need: You'll need a computer running version 8 or higher of the Java Development Kit, as well as an IDE like IntelliJ IDEA community edition or Android Studio. You'll need to be comfortable creating a new project in your IDE and adding dependencies to it. Who Is This Book For? If you write Kotlin code, this book is for you. Coroutines have something to offer for almost every program. Whether you build mobile apps, web pages, back-end servers, or something else altogether, you can use the tools and techniques in this book to improve your code and enhance your development experience. For those new to coroutines, the book will take you on a step-by-step journey. We’ll jump right in with a real-world example of an asynchronous program, and we’ll gradually build on that foundation with a new topic in each chapter. You’ll learn how coroutines can upgrade your asynchronous code and how they compare with other tools you might have used, both in Kotlin and in other languages. Perhaps you’ve already started using coroutines, and you’re here to learn more about them. Yes, we’ll answer all those frustrating questions. Why can’t I launch a coroutine there? Why does that function work that way? And what’s this exception doing here? You’ll learn about the unique challenges that come with asynchronous programming and concurrency and understand how each tool in your coroutine toolbox has been carefully designed to help solve these problems. Preface Introduction Part I. Best of Both Worlds Wait Without Worrying Escape From Callback Hell Start It, Scope It, Stop It Split Up to Speed Up Plan for Any Outcome Cooperate with Cancellation Unlock Parallel Processing Part II. Better Together Go with the Flow Operate the Reactive Way Share Flows, Connect Channels Unit Test Without Delay