Dunfey · Hotel WWDC as data, est. 1983
Front desk everything
Years
Topics

WWDC23 · 26 min · Spatial Computing / Accessibility & Inclusion

Create accessible spatial experiences

Learn how you can make spatial computing apps that work well for everyone. Like all Apple platforms, visionOS is designed for accessibility: We’ll share how we’ve reimagined assistive technologies like VoiceOver and Pointer Control and designed features like Dwell Control to help people interact in the way that works best for them. Learn best practices for vision, motor, cognitive, and hearing accessibility and help everyone enjoy immersive experiences for visionOS.

Watch at developer.apple.com ↗

Transcript all transcripts

Chapters

Code shown on screen · 6 snippets

Use AccessibilityComponent with RealityKit swift · at 5:28 ↗ 
var accessibilityComponent = AccessibilityComponent()
accessibilityComponent.isAccessibilityElement = true
accessibilityComponent.traits = [.button, .playsSound]
accessibilityComponent.label = "Cloud"
accessibilityComponent.value = "Grumpy"
cloud.components[AccessibilityComponent.self] = accessibilityComponent

// ...

var isHappy: Bool {
    didSet {
        cloudEntities[id].accessibilityValue = isHappy ? "Happy" : "Grumpy"
    }
}
Add an activate action swift · at 8:04 ↗ 
var accessibilityComponent = AccessibilityComponent()
accessibilityComponent.isAccessibilityElement = true
accessibilityComponent.traits = [.button, .playsSound]
accessibilityComponent.label = "Cloud"
accessibilityComponent.value = "Grumpy"
accessibilityComponent.systemActions = [.activate]
cloud.components[AccessibilityComponent.self] = accessibilityComponent

// ...

content.subscribe(to: AccessibilityEvents.Activate.self, componentType: nil) { activation in
    handleCloudCollision(for: activation.entity, gameModel: gameModel)
}
Announce meaningful events and changes in context swift · at 9:23 ↗ 
AccessibilityNotification.Announcement("8 clouds in front of you").post()
Provide alternatives to head anchored content swift · at 13:15 ↗ 
// SwiftUI
@Environment(\.accessibilityPrefersHeadAnchorAlternative)
private var accessibilityPrefersHeadAnchorAlternative

// UIKit
AXPrefersHeadAnchorAlternative()
NSNotification.Name.AXPrefersHeadAnchorAlternativeDidChange
Provide alternatives when Reduce Motion is enabled swift · at 15:04 ↗ 
// SwiftUI
@Environment(\.accessibilityReduceMotion)
private var accessibilityReduceMotion

// UIKit
UIAccessibility.isReduceMotionEnabled
UIAccessibility.reduceMotionStatusDidChangeNotification
Check whether captions are enabled swift · at 23:35 ↗ 
UIAccessibility.isClosedCaptioningEnabled
UIAccessibility.closedCaptioningStatusDidChangeNotification

Resources