Exploring SwiftUI with Xcode
In this section, we are going to look into the Xcode UI in the context of a SwiftUI project.
Xcode is quite a large topic by itself. We will focus on SwiftUI and explain enough about how Xcode usage differs in SwiftUI from UIKit to get you started, how to create a SwiftUI project, and add targets for various Apple platforms. Also, we will explain how to add tests to a project.
A brief tour of Xcode
Xcode is an integrated development environment (IDE) for developing any code on any device that Apple produces. Xcode is therefore a massive and complex app capable of supporting many different types of projects and technologies. Not all of these types of projects are relevant to SwiftUI, so we will limit ourselves to Swift as a language and SwiftUI as a UI framework. In the past, the only supported language for app development was Objective-C and the only supported UI framework was different for each device platform, notably UIKit for iOS and AppKit...
