If you are developing a custom component, that can change value, chances are that it will need the adjustable accessibility trait (VoiceOver will say: "Adjustable"). Think of a component that lets you rate from one to five thumbs up (or stars).
Day 32
Adjustable trait for custom value controls
19 Jun 2022
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With VoiceOver, you can swipe up/down to increase/decrease the value of adjustable components. You need to implement accessibilityIncrement() and accessibilityDecrement() accordingly, and configure an accessibility value that makes sense. Example code in the image: ```swift override func accessibilityIncrement() { guard value < 5 else { return } value += 1 accessibilityValue = "\(value) of 5" sendActions(for: .valueChanged) } override func accessibilityDecrement() { guard value > 1 else { return } value -= 1 accessibilityValue = "\(value) of 5" sendActions(for: .valueChanged) } ``` Links to the official documentation: * accessibilityincrement() * accessibilitydecrement()
Grouping elements when it makes sense can make a huge impact on easing navigation with some assistive technologies like VoiceOver, Switch Control, or Full Keyboard Access. It also helps on reducing redundancy.
Custom actions work as great on Switch Control as they do in VoiceOver. It makes navigation much, much, faster and you’ll be able to find all those custom actions in the Switch Control menu.
Content © Daniel Devesa Derksen-Staats on Accessibility up to 11! is licensed under CC BY 4.0. License details
