How can I create CustomIndexedWidgetBuilder disabled items.

[UnreALi]

How can I create CustomIndexedWidgetBuilder disabled items.
Set to false from initState

CustomItem(
  data: v,
  checked: widget.controller.initSelectedItem.contains(v),
  isDisabled: false,
),

I think a list needs to be implemented here

 ValueNotifier(
  CustomItem(
    data: v,
    checked: widget.controller.initSelectedItem.contains(v),
    isDisabled: widget.controller.initDisabledItem.contains(v),
  ),
),