Book Image

Modern Android 13 Development Cookbook

By : Madona S. Wambua
5 (1)
Book Image

Modern Android 13 Development Cookbook

5 (1)
By: Madona S. Wambua

Overview of this book

Android is a powerful operating system widely used in various devices, phones, TVs, wearables, automobiles, and more. This Android cookbook will teach you how to leverage the latest Android development technologies for creating incredible applications while making effective use of popular Jetpack libraries. You’ll also learn which critical principles to consider when developing Android apps. The book begins with recipes to get you started with the declarative UI framework, Jetpack Compose, and help you with handling UI states, Navigation, Hilt, Room, Wear OS, and more as you learn what's new in modern Android development. Subsequent chapters will focus on developing apps for large screens, leveraging Jetpack’s WorkManager, managing graphic user interface alerts, and tips and tricks within Android studio. Throughout the book, you'll also see testing being implemented for enhancing Android development, and gain insights into harnessing the integrated development environment of Android studio. Finally, you’ll discover best practices for robust modern app development. By the end of this book, you’ll be able to build an Android application using the Kotlin programming language and the newest modern Android development technologies, resulting in highly efficient applications.
Table of Contents (15 chapters)

Writing UI tests for your Compose views

It is essential to test your code when developing Android applications, especially if your applications have many users. Furthermore, when you write tests for your code, you basically verify the functions, behavior, correctness, and versatility of the Android application. The most popular UI testing tools in Android are Espresso, UI Automator, Calabash, and Detox.

In this book, however, we will use Espresso. The most notable advantages of Espresso are as follows:

  • It is easy to set up
  • It has highly stable test cycles
  • It supports JUnit 4
  • It is made purely for Android UI testing
  • It is suitable for writing black-box tests
  • It supports testing activities outside the application as well

Getting ready

You will need to have completed previous recipes to follow along with this one.

How to do it…

As with the other recipes in this chapter, we will use the new project we created in Chapter 1, Getting Started...