SelectableItemVoidCallback<K extends Key> typedef
SelectableItemVoidCallback<K extends Key> =
void Function(BuildContext context, K key, SelectableItemTip tip)
The signature for describing a void callback with key
and SelectableItemTip, used by SelectableItem.
Implementation
typedef SelectableItemVoidCallback<K extends Key> = void Function(BuildContext context, K key, SelectableItemTip tip);