Book Image

Mastering Android Development with Kotlin

By : Miloš Vasić
Book Image

Mastering Android Development with Kotlin

By: Miloš Vasić

Overview of this book

Kotlin is a programming language intended to be a better Java, and it's designed to be usable and readable across large teams with different levels of knowledge. As a language, it helps developers build amazing Android applications in an easy and effective way. This book begins by giving you a strong grasp of Kotlin's features in the context of Android development and its APIs. Moving on, you'll take steps towards building stunning applications for Android. The book will show you how to set up the environment, and the difficulty level will grow steadily with the applications covered in the upcoming chapters. Later on, the book will introduce you to the Android Studio IDE, which plays an integral role in Android development. We'll use Kotlin's basic programming concepts such as functions, lambdas, properties, object-oriented code, safety aspects, type parameterization, testing, and concurrency, which will guide you through writing Kotlin code in production. We'll also show you how to integrate Kotlin into any existing Android project.
Table of Contents (24 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Danger signs


Converting huge and complex Java classes into Kotlin is still an option to do. Anyway, provide proper unit or instrumentation tests so the functionality of these classes is retested after conversion. If any of your tests fails, double-check the causes of that failure.

The classes you want to migrate can migrate in the following two ways:

  • Automatic conversion
  • Rewriting by hand

In case of huge and complex classes, both approaches can give us certain drawbacks. Fully automatic conversion can sometimes give you the code that is not the prettiest code to look at. So, after you do it, you should recheck and reformat something. The second option can take you a lot of time.

Conclusion--you can always use the original Java code. From the moment you switch to Kotlin as your primary language, you can write all new stuff in Kotlin.