Book Image

SwiftUI Cookbook

By : Giordano Scalzo, Edgar Nzokwe
Book Image

SwiftUI Cookbook

By: Giordano Scalzo, Edgar Nzokwe

Overview of this book

SwiftUI is an innovative and simple way to build beautiful user interfaces (UIs) for all Apple platforms, right from iOS and macOS through to watchOS and tvOS, using the Swift programming language. In this recipe-based book, you’ll work with SwiftUI and explore a range of essential techniques and concepts that will help you through the development process. The recipes cover the foundations of SwiftUI as well as the new SwiftUI 2.0 features introduced in iOS 14. Other recipes will help you to make some of the new SwiftUI 2.0 components backward-compatible with iOS 13, such as the Map View or the Sign in with Apple View. The cookbook begins by explaining how to use basic SwiftUI components. Then, you’ll learn the core concepts of UI development such as Views, Controls, Lists, and ScrollViews using practical implementation in Swift. By learning drawings, built-in shapes, and adding animations and transitions, you’ll discover how to add useful features to the SwiftUI. When you’re ready, 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 while 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 found in building SwiftUI apps.
Table of Contents (15 chapters)

Implementing UIKit Sign in with Apple to be used in SwiftUI

In this recipe, you'll learn how to use Sign in with Apple in a SwiftUI app by wrapping the UIKit component.

In iOS 14, SwiftUI provides a native SignInWithApple button, but if you don't have support for it yet and are still using iOS 13, then don't worry – in this recipe, we are going to implement a wrapper around the UIKit class that works very well with SwiftUI.

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

Important Note

Sign in with Apple is still a bit flaky when it's run in a simulator, so it is safer to run this recipe on an iOS device.

The app that we'll be implementing in this recipe is simple, but it can be a good foundation to implement a proper app with Apple's authentication.

As you may recall, the AuthenticationServices framework only passes the user's...