list property

List<AlphaModel> list
final

List of Items should be non Empty and you must map your

 List<T> to List<AlphaModel>
 e.g
 List<UserModel> _list;
 _list.map((user)=>AlphaModel(user.name)).toList();

where each item of this list will be mapped to each widget returned by ItemBuilder to uniquely identify that widget.

Implementation

final List<AlphaModel> list;