disabledItemsByTitles method Null safety

  1. @override
void disabledItemsByTitles(
  1. List<String> items
)

disabled the items by there titles in groupedCheckBox

items : (List) strings that will be disabled

Implementation

@override
void disabledItemsByTitles(List<String> items) =>
    _widgetState.disabledItemsByTitles(items);