SwiftUI Overview

SwiftUI is a declarative framework for building apps for any Apple platform. SwiftUI provides a common API that you can use to define an app’s user interface and platform-specific behavior.

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Create apps more quickly and with fewer errors with these key SwiftUI features:

• Declarative syntax — Define which views appear onscreen using simple Swift structures.
• A compositional API — Quickly create and iterate your user interface using built-in views and modifiers. Compose more complex views by combining simpler views.
• A powerful layout system — Easily arrange views onscreen relative to their parent views and to each other. When existing views and controls don’t suit your needs, you can draw your own.
• Views that reflect app data — Define a view’s data dependencies, and SwiftUI automatically updates the view when data changes, avoiding errors from invalid view states.
• Automatic accessibility support — SwiftUI adds basic accessibility that you’ll learn to enhance with minimal effort.