This week, I want to talk about one of the most powerful Xcode features, SwiftUI previews. SwiftUI previews allow you to look at your SwiftUI views inside Xcode without running the app in the simulator. You can also preview UIKit views and controllers by wrapping them in SwiftUI. Today we will learn about all the powerful features of previews in Xcode.
SwiftUI has View protocol which represents part of your app’s user interface and provides modifiers that you use to configure views. You create custom views by declaring types that conform to the View protocol. Implement the required body computed property to provide the content for your custom view.
Kilo Loco shows you how to implement Sign in with Apple using SwiftUI and iOS 14. This tutorial will cover handling the SIWA button UI, persisting user credentials, and revoking sign in with apple privileges.