Instance Method インスタンスメソッド

accessibilityRotor(_:entries:entryID:entryLabel:)

Create an Accessibility Rotor with the specified user-visible label and entries.

Declaration 宣言 

func accessibilityRotor<EntryModel, ID>(_ rotorLabelKey: LocalizedStringKey, entries: [EntryModel], entryID: KeyPath<EntryModel, ID>, entryLabel: KeyPath<EntryModel, String>) -> some View where ID : Hashable

Parameters パラメータ

labelKey

Localized label identifying this Rotor to the user.

entries

An array of values that will be used to generate the entries of the Rotor.

entryID

Key path on the entry type that can be used to generate an identifier for the Entry. The identifiers must match up with identifiers in ForEach or explicit id calls within the ScrollView.

entryLabel

Key path on the entry type that can be used to get a user-visible label for every Rotor entry. This is used on macOS when the user opens the list of entries for the Rotor.

Discussion 議論

An Accessibility Rotor is a shortcut for Accessibility users to quickly navigate to specific elements of the user interface, and optionally specific ranges of text within those elements.

Using this modifier requires that the Rotor be attached to a ScrollView, or an Accessibility Element directly within a ScrollView, such as a ForEach. When the user navigates to entries from this Rotor, SwiftUI will automatically scroll them into place as needed.

In the following example, a Message application creates a Rotor allowing users to navigate to specifically the messages originating from VIPs.


// `messages` is a list of `Message`s that have a `subject` and a
// `uuid`. `vipMesages` is a filtered version of that list
// containing only messages from VIPs.
ScrollView {
    LazyVStack {
        ForEach(messages) { message in
            MessageView(message)
        }
    }
}
.accessibilityElement(children: .contain)
.accessibilityRotor("VIPs", entries: vipMessages,
    entryID: \.uuid, entryLabel: \.subject)