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)

Getting Started with SwiftUI

Here, we'll begin our journey into learning SwiftUI by building our very own SwiftUI app. We'll start by learning the history of the Swift programming language, which will act as a good foundation for understanding the core concepts of Swift development. Together, we'll build an app with custom animations and everyday elements that work seamlessly for iOS, iPadOS, and watchOS. From this, we'll see the benefits of writing good, clean code—once—for multiple devices. Once we have our working app, we'll cover testing and debugging, and see how crafting our code in the right way from the start can make this much simpler to implement.

We'll get started with the history of Swift before getting hands-on into Xcode, where we'll learn just how simple, yet powerful, developing in SwiftUI really is. In this chapter, we'll get you primed and ready for your journey into SwiftUI by first of all introducing you to the Swift programming language, along with the existing UIKit framework. We'll then discuss what SwiftUI brings to the table, and how it sits not only within a new project but in your existing projects too.

The following topics will be covered in this chapter:

  • Introducing Swift as a programming language
  • Learning about existing UI frameworks
  • Introducing SwiftUI
  • When to use SwiftUI, and why