SwiftUI Fundamentals

Feb 28 2023 · Swift 5.7, macOS Venture 13.1, Xcode 14.2

Part 1: SwiftUI Views

02. The View Protocol

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Notes: 02. The View Protocol

To learn more about the Swift features supporting SwiftUI, check out these chapters from our book, Swift Apprentice:

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The basis for everything you’ll do in SwiftUI is the View protocol. Each “view” in swiftUI will be a value type, a struct, conforming to the View protocol. View has one requirement: the Body property, which provides some sort of UI element to be rendered.

Text("Howdy, World!")
}
  ❌.padding()
Text("Howdy, world!")
  Image(systemName: "swift")
Text("Hello, World!")
Image(systemName: "swift")
VStack {...}
public protocol View {
  associatedtype Body : View

  @ViewBuilder var body: Self.Body { get }
}
body: ❌View {...}
> Undo!