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

Android Debug Bridge


To access devices, you will use the adb command executed from the terminal. We will take a look into the common cases.

Listing all devices:

adb devices

Console output:

List of devices attachedemulator-5554 attachedemulator-5555 attached

Obtaining shell access to device:

adb shell

Accessing a specific device instance:

adb -s emulator-5554 shell

Where -s represents device source.

Copying a file from and to a device:

adb pull /sdcard/images ~/imagesadb push ~/images /sdcard/images

Uninstalling an application:

adb uninstall <package.name>

One of the greatest features of adb is that you can access it through telnet. Use telnet localhost 5554 to connect to your emulator device. Terminate your session using the quit or exit command.

Let's play with adb:

  • Connect to device:
telnet localhost 5554
  • Change the power level:
power status fullpower status charging
  • Or simulate a call:
gsm call 223344556677
  • Send an SMS:
sms send 223344556677 Android rocks
  • Set geolocation:
geo fix 22 22

Note

With adb, you can also take a screenshot or record a video!