Book Image

Creating Cross-Platform C# Applications with Uno Platform

By : Matt Lacey, Marcel Alexander Wagner
Book Image

Creating Cross-Platform C# Applications with Uno Platform

By: Matt Lacey, Marcel Alexander Wagner

Overview of this book

Developers are increasingly being asked to build native applications that run on multiple operating systems and in the browser. In the past, this would have meant learning new technologies and making multiple copies of an application. But the Uno Platform allows you to use tools, languages, and APIs you already know from building Windows apps to develop apps that can also run on other platforms. This book will help you to create customer-facing as well as line-of-business apps that can be used on the device, browser, or operating system of your choice. This practical guide enables developers to put their C# and XAML knowledge to work by writing cross-platform apps using the Uno Platform. Packed with tips and practical examples, this book will help you to build applications for common scenarios. You'll begin by learning about the Uno Platform through step-by-step explanations of essential concepts, before moving on to creating cross-platform apps for different lines of business. Throughout this book, you'll work with examples that will teach you how to combine your existing knowledge to manage common development environments and implement frequently needed functionality. By the end of this Uno development book, you will have learned how to write your own cross-platform apps with the Uno Platform and use additional tools and libraries to speed up your app development process.
Table of Contents (13 chapters)
1
Section 1: Getting to Know Uno Platform
4
Section 2: Writing and Developing Uno Platform Apps
9
Section 3: Test, Deploy, and Contribute

Writing and running your first test

Before we start writing our first test, we will cover how you can use Uno.UITest to interact with your apps. For this, we will first start by covering the basics of the addressing elements using Uno.UITests query feature objects.

How Uno.UITest works

Since UI tests need to address UI elements of your app, every UI testing library needs to have a way to allow developers to address those elements. Uno.UITest does this using the IAppQuery interface to define queries and the IApp interface to run those queries and inject input.

The IApp interface provides you with the necessary APIs to interact with your app, including clicking elements, simulating scrolling, and injecting text input. As part of the creation of the Uno.UITest project, the TestBase class will provide you with an IApp instance. Since the IApp interface allows you to simulate input to your app and most interactions require a specific control to be the target of your interaction...