Error when moving items from one list to another untill is empty and then adding back

[daybson]

My two lists are initialized with 2 itens.
I move all from the first list to second one.
Then, I try to add an item of the second list to the first list.

Throws the exception:
RangeError (index): Invalid value: Valid value range is empty: 1

Edit: I've made a small overloading on constructor of BoardView to support a custom width instead the default value.

My full code:

import 'package:boardview/board_item.dart';
import 'package:boardview/board_list.dart';
import 'package:boardview/boardview.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

class MyExample extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return MyExampleState();
  }
}

class MyExampleState extends State<MyExample> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(),
      body: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          mainAxisAlignment: MainAxisAlignment.start,
          children: <Widget>[
            Expanded(
                child: BoardView(
              lists: _get() + _get(), width: 150,
            )),
          ]),
    );
  }

  List<BoardList> _get() {
    var boardItem0 = BoardItem(
        item: Container(
            height: 20,
            color: Colors.indigo[100],
            child: Text(
              'ABC',
              style: TextStyle(fontSize: 12),
            )));
    var boardItem1 = BoardItem(
        item: Container(
            height: 20,
            color: Colors.purple[100],
            child: Text(
              '123',
              style: TextStyle(fontSize: 12),
            )));

    var listBoardItems = List<BoardItem>();
    listBoardItems.add(boardItem0);
    listBoardItems.add(boardItem1);

    var boardList = BoardList(
        headerBackgroundColor: Colors.green,
        header: Container(
          height: 50,
          color: Colors.blue,
        ),
        items: listBoardItems,
        footer: Container(
          height: 50,
          color: Colors.red,
        ));

    var listBoardListItems = List<BoardList>();
    listBoardListItems.add(boardList);

    return (listBoardListItems);
  }
}

Gif attached:

[jakebonk]

I just updated the version to 0.0.5 so upgrade it and it should fix the error. In this version I changed the header parameter in BoardList to a List instead of a Widget so you can just wrap it in an array.