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RadioButtons.md

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Radio Buttons

There is no native radio button control for SwiftUI in iOS.

Use another native control like a Picker which allows only one selection or mimic radio group behavior on the web with VoiceOver.

For example, create a custom radio button group out of Button elements and manually add and remove accessibility traits and values:

  • Use .accessibilityRemoveTraits(.isButton) to remove the button trait.
  • Use .accessibilityAddTraits(isSelected.rawValue == title ? .isSelected : []) to add a selected trait when checked.
  • Use .accessibilityRemoveTraits(isSelected.rawValue != title ? .isSelected : []) to remove the selected trait when unchecked.
  • Use .accessibilityValue(isSelected.rawValue == title ? Text("Radio button, checked") : Text("Radio button, unchecked")) to add a fake radio button trait and a checked and unchecked state.
  • Additionally use .accessibilityElement(children: .contain) and .accessibilityLabel("Choose Color") to give the radio group a label for VoiceOver.

Applicable WCAG Success Criteria

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