key property

String? key

Unique key per list item

Implementation

String? get key {
  if (this is ListHeaderItem) {
    final header = (this as ListHeaderItem).heading;
    return 'HEADER-${header.toLowerCase()}';
  }
  if (this is ListUserItem) {
    final user = (this as ListUserItem).user;
    return 'USER-${user.id}';
  }
  return null;
}