accessibilityValue conveys control state

UISliders are adjustable, and its default accessibility value is represented in percentages. But that's not always the best format to express a value. Consider a slider to select a distance radius. Miles or km seem a more appropriate unit. Example code in the image: ```swift override var accessibilityValue: String? { get { let formatter = MeasurementFormatter() let measurement = Measurement( value: Double(value), unit: .kilometers ) formatter.unitStyle = .long return formatter.string(from: measurement) } set {} } ```

A similar experience can sometimes be achieved in different ways using labels, traits, and values. Most times there are no right or wrong answers; it will be up to your users to say which approach they like the most. Two great pieces of advice though: > **@Sommer:** "Check and see how Apple's own apps handle similar scenarios. Not because our apps are perfect but rather to help build on consistent patterns." > > Tweet by @Sommer > **@dotjay:** "Meet the platform expectations, and give users control rather than prescribing what you think users want." > > Tweet by @dotjay

Custom actions work with VoiceOver, Switch Control and Full Keyboard Access. They also do for Voice Control. You can say "Show actions for <item name/number>", and an action sheet with all options, numbered, will be presented to the user. For some use-cases, Voice Control users might not feel it is a big win. Navigation is not as big of an issue, and interacting with custom actions might be a bit trickier than with "exposed" buttons. But lots of times seems a fair compromise.