SwiftUI Previews in Xcode 12

Introduction to SwiftUI

Explore the world of declarative-style programming: Discover how to build a fully-functioning SwiftUI app from scratch as we explain the benefits of writing declarative code and how SwiftUI and Xcode can combine forces to help you build great apps, faster.

What's new in SwiftUI

SwiftUI can help you build better and more powerful apps for iPhone, iPad, Mac, Apple Watch, and Apple TV. Learn more about the latest refinements to SwiftUI, including interface improvements like outlines, grids, and toolbars. Take advantage of SwiftUI’s enhanced support across Apple frameworks...

Build complications in SwiftUI

Spice up your graphic complications on Apple Watch using SwiftUI. We’ll teach you how to use custom SwiftUI views in complications on watch faces like Meridian and Infograph, look at some best practices when creating your complications, and show you how to preview your work in Xcode 12. To get...

App essentials in SwiftUI

Thanks to the new App protocol, SwiftUI now supports building entire apps! See how Apps, Scenes, and Views fit together. Learn how easy it is to implement the features people expect from a best-in-class product while saving time and reducing complexity. Easily add expected functionality to your...

Visually edit SwiftUI views

Help your apps be the best versions of themselves: Discover how you can leverage Xcode Previews and SwiftUI to quickly iterate upon and improve your app. Find out how you can use the Previews canvas to build your app from the ground up, and view your interface in different environments like Light...

Stacks, Grids, and Outlines in SwiftUI

Display detailed data in your SwiftUI apps more quickly and efficiently with improved stacks and new list and outline views. Now available on iOS and iPadOS for the first time, outlines are a new multi-platform tool for expressing hierarchical data that work alongside stacks and lists. Learn how to...

Build a SwiftUI view in Swift Playgrounds

Easily prototype and play around with SwiftUI views when you use them with Swift Playgrounds. We’ll show you how to build a SwiftUI view in a Xcode-compatible playground, and explore tools to help you easily edit and preview your code. For more on Swift Playgrounds, check out our interactive...

Build document-based apps in SwiftUI

Learn how to build a document-based app entirely in SwiftUI! We’ll walk you through the DocumentGroup API and how it composes with your App and Scenes, allowing you to add out-of-the-box support for document management — such as document browsing and standard commands — no heavy lifting...

Data Essentials in SwiftUI

Data is a complex part of any app, but SwiftUI makes it easy to ensure a smooth, data-driven experience from prototyping to production. Discover @State and @Binding, two powerful tools that can preserve and seamlessly update your Source of Truth. We'll also show you how ObservableObject lets you...

Build SwiftUI views for widgets

Widgets are bite-sized pieces of information from your app that someone can choose to place on their home screen or Today view. Discover the process of building the views for a widget from scratch using SwiftUI. Brush up on the syntax that you’ll need for widget-specific construction and learn...