Book Image

Learn SwiftUI

By : Chris Barker
Book Image

Learn SwiftUI

By: Chris Barker

Overview of this book

SwiftUI is the new and powerful interface toolkit that lets you design and build iOS, iPadOS, and macOS apps using declarative syntax. It is a powerful way to develop the UI elements of applications, which would normally be tightly coupled to application logic. Learn SwiftUI will get you up to speed with the framework and cross-device UI development in no time. Complete with detailed explanations and practical examples, this easy-to-follow guide will teach you the fundamentals of the SwiftUI toolkit. You'll learn how to build a powerful iOS and iPadOS application that can be reused for deployment on watchOS. As you progress, you'll delve into UI and unit testing in iOS apps, along with learning how to test your SwiftUI code for multiple devices. The book will also show you how to integrate SwiftUI features such as data binding and network requests into your current application logic. By the end of this book, you will have learned how to build a cross-device application using the SwiftUI framework and Swift programming.
Table of Contents (17 chapters)


In this chapter, we learned how declarative syntax allows the developer to write syntax in a way that describes the actions and functions required and how its counterpart, imperative programming, is more logic-based.

We learned about the structure of declarative syntax and how understanding the view hierarchy is important to us, especially as every component on the screen is of the View type.

We also got to use SwiftUI for the first time in Xcode and took our first glance at the structure and arrangement that the declarative syntax has to offer, including nesting Views, and the importance of Group containers to arrange our subviews.

In the next chapter, we'll move onto the layout of SwiftUI and understand the structure of not just our code, but the architecture of our code base.