Accessibility + visionOS: RealityKit Accessibility Annotations

RealityKitAnnotationsExample.swift

import RealityKit

// 1 - Create RealityKit Entity
let modelEntity = ModelEntity(/* ... */)

// 2 - Create AccessibilityComponent
var accessibilityComponent = AccessibilityComponent()

// 3 - Expose to assistive technology
accessibilityComponent.isAccessibilityElement = true

// 4 - Add basic annotations (label, value, traits)
accessibilityComponent.label = "Label"
accessibilityComponent.value = "Value"
accessibilityComponent.traits = [.button]

// 5 - Add custom actions and rotors
accessibilityComponent.customActions = [/* ... */]
accessibilityComponent.customRotors = [/* ... */]

// 6 - Assign AccessibilityComponent to RealityKit Entity
modelEntity.components?[AccessibilityComponent.self] = accessibilityComponent
  
// 7 - Update the AccessibilityComponent as the app state changes