Book Image

Android Studio Cookbook

By : Mike van Drongelen
Book Image

Android Studio Cookbook

By: Mike van Drongelen

Overview of this book

This book starts with an introduction of Android Studio and why you should use this IDE rather than Eclipse. Moving ahead, it teaches you to build a simple app that requires no backend setup but uses Google Cloud or Parse instead. After that, you will learn how to create an Android app that can send and receive text and images using Google Cloud or Parse as a backend. It explains the concepts of Material design and how to apply them to an Android app. Also, it shows you how to build an app that runs on an Android wear device. Later, it explains how to build an app that takes advantage of the latest Android SDK while still supporting older Android versions. It also demonstrates how the performance of an app can be improved and how memory management tools that come with the Android Studio IDE can help you achieve this. By the end of the book, you will be able to develop high quality apps with a minimum amount of effort using the Android Studio IDE.
Table of Contents (17 chapters)
Android Studio Cookbook
About the Author
About the Reviewers

Unit testing using Robolectric

Unit testing is a testing method where individual units of code are tested. A view or repository can be tested, for example, to check whether it meets the demands. Unlike most other tests, these kinds of tests typically are developed and run by a software developer.

Ideally, a test case is completely independent from other cases and other units. Since classes often depend on others substitutes such as mock objects needs to be used. In the previous recipe, the QuizRepository class provides hardcoded quiz data (stubbed or mocked data), but as suggested, the intention is that the quiz data should be retrieved from a backend.

We are going to prepare the app we created in the previous recipe for unit testing, and we will create some tests ourselves. Robolectric is going to help us with that. Although since the 1.2 release of Android Studio unit testing (based on JUnit) has become much easier to set up, it still is not as powerful as Robolectric.

Robolectric does not...