Are Xcode library Custom views/modifiers iOS14 only?

Question

Xaxxus OP

Created Jun ’20

Replies 1

Boosts 0

Participants 2

Is the custom view/modifier backwards compatible with SwiftUI on iOS 13? Or does it require iOS 14

Boost

Answer 1

Apple Staff OP

Apple

Jun ’20

The API that is used to declare the items (LibraryContentProvider etc) is iOS 14, but you can guard against it's usage when building for iOS 13 with @available and Xcode will still pick it up correctly, so the following compiles for iOS 13 and still populates your library.

Code Block @available(iOS 14.0, *)
struct LibraryContent : LibraryContentProvider {
  @LibraryContentBuilder
  var views: [LibraryItem] {
    LibraryItem(
      Text("Hello WWDC!"),
      title: "Custom View In The Library"
    )
  }
}

2