# OptionItemDelegate

    public protocol OptionItemDelegate : AnyObject

The delegate of an `OptionItem` object must adopt the `OptionItemDelegate` protocol to get notified on updates.

- `optionItemDidChange(_:)`

  Tells the delegate when the option item is changed.

  #### Declaration

  Swift

      func optionItemDidChange(_ item: OptionItem)

  #### Parameters

  `item` | The option item which changed.