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

Publishing to Google Play


The last step in deployment will be publishing the signed release APK. Beside the APK, we need to provide a few more things:

  • Screenshots--Prepare screenshots from your application. You can do this by doing the following: From Android Studio Logcat, click on the Screen Capture icon (a little camera icon). From the Preview window, click on Save. You will be asked to save your image:
  • High resolution icon with the following specification:

PNG image of 32-bit (with alpha)

512 px by 512 px in dimensions

1024 K maximal file size

  • Feature graphics (main banner for your application):

JPEG image or PNG of 24-bit (without alpha!)

1024 px by 500 px in dimensions

  • If you publish the application as a TV application or a TV banner:

JPEG image or PNG of 24-bit (without alpha!)

1280p x by 720 px in dimensions

  • Promo video--YouTube video (not playlist)

  • Textual description of your application

Log in to the developer's console (https://play.google.com/apps/publish).

If you haven't registered yet, do...