Book Image

SwiftUI Cookbook - Second Edition

By : Giordano Scalzo, Edgar Nzokwe
Book Image

SwiftUI Cookbook - Second Edition

By: Giordano Scalzo, Edgar Nzokwe

Overview of this book

SwiftUI provides an innovative and simple way to build beautiful user interfaces (UIs) for all Apple platforms, from iOS and macOS through to watchOS and tvOS, using the Swift programming language. In this recipe-based cookbook, you’ll cover the foundations of SwiftUI as well as the new SwiftUI 3 features introduced in iOS 15 and explore a range of essential techniques and concepts that will help you through the development process. The cookbook begins by explaining how to use basic SwiftUI components. Once you’ve learned the core concepts of UI development, such as Views, Controls, Lists, and ScrollViews, using practical implementations in Swift, you'll advance to adding useful features to SwiftUI using drawings, built-in shapes, animations, and transitions. You’ll understand how to integrate SwiftUI with exciting new components in the Apple development ecosystem, such as Combine for managing events and Core Data for managing app data. Finally, you’ll write iOS, macOS, and watchOS apps by sharing the same SwiftUI codebase. By the end of this SwiftUI book, you'll have discovered a range of simple, direct solutions to common problems encountered when building SwiftUI apps.
Table of Contents (17 chapters)

Implementing Sign in with Apple in a SwiftUI app

In this recipe, you'll learn how to use Sign in with Apple in a SwiftUI app. Apple enforces the use of this method for authentication, making it mandatory if an app uses a third-party social login such as Facebook or Google, so it's a useful skill to learn.

Sign in with Apple is the official method that Apple uses for authentication and SwiftUI supports it natively.

We are going to implement a simple app that permits us to log in using our Apple ID and presents our credentials once we are logged in.

Important Note

Sign in with Apple doesn't work reliably with a simulator, so for this recipe, I recommend using a real iOS device.

The app we are going to implement is very basic, but it will give you the foundation for building something more sophisticated. However, there are a couple of points that we must take into consideration:

  • First, the framework will only pass the user's credentials the first...