Flutter：将列表从一页传递到另一页

Question

我正在做一个扑朔迷离的项目。我想将列表从一页传递到另一页。但这对我没用

List list;

    articleCall save = await Navigator.of(context).push(new MaterialPageRoute<articleCall>(
                builder: (BuildContext context) {
                  return new AddArticleDialog(list);
                },
        -----------

        class AddArticleDialog extends StatefulWidget {

            List ls=[];

          AddArticleDialog({this.ls});
          @override
          AddArticleDialogState createState() => new AddArticleDialogState();
        }

它告诉我错误：位置参数过多：期望0，但发现1。请帮助

谢谢， 沙沙语