In UIKit, to create an adjustable component we need to add the adjustable trait and override both accessibilityIncrement() and accessibilityDecrement(). In SwiftUI, everything you need is bundled in the accessibilityAdjustableAction(_:) modifier.
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There are a ton of things to love about SwiftUI. But one of my favorites it's got to be the possibility of previewing Variants: the possibility of seeing your UI in dark/light modes, all dynamic type sizes, and orientations, side-by-side.
Sometimes, you may want to create a custom component, even if there is a similar one in UIKit because you want to style it in a way that the default one won't let you. That's fine, just take into account that you'll need to make it accessible.
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).
Content © Daniel Devesa Derksen-Staats on Accessibility up to 11! is licensed under CC BY 4.0. License details
