SwiftUI has equivalent accessibility modifiers for some of UIAccessibility's properties in UIKit. Same basic concepts apply.
Label: https://developer.apple.com/documentation/swiftui/view/accessibilitylabel(:)-9ek2h
Value: https://developer.apple.com/documentation/swiftui/view/accessibilityvalue(:)-8esl7
Traits: https://developer.apple.com/documentation/swiftui/view/accessibilityaddtraits(:)
Hint: https://developer.apple.com/documentation/swiftui/view/accessibilityhint(:)-3i2vu
With regular buttons from UIKit or SwiftUI, you are all set. With complex views, headings, or table/collection view cells that, when selected, bring the user somewhere else in the app or perform an action, you'll have to add the button trait.
As with UIKit, in SwiftUI you can also add/remove a11y traits. But because of its declarative nature, you'll have to approach it in a slightly different way. A little nuance, but something that made me scratch my UIKit head when learning SwitUI.
Creating UIAccessibilityElements, combined with a semanticGroup accessibilityContainerType, can also help you make components as complex as charts accessible. Example from "Bring Accessibility to Charts" WWDC21: https://developer.apple.com/videos/play/wwdc2021/10122/
Content © Daniel Devesa Derksen-Staats — Accessibility up to 11!
