未为类"网页浏览"定义 getter 'children'

Question

我对如何实现这一点没有什么想法，但下面是代码：

PageView widgetPageView = new PageView(children: <Widget>[],);
dataList.forEach((e){
Leader c = Leader.fromJson(e);
widgetPageView.children.add(*unimportant stings*); <--- Error here
});

问题是，当我定义PageView时，它有"children"getter，而在for循环中则没有。请帮忙。错误本身是"没有为类"PageView"定义getter"children">

Answer 1

final List<Widget> children = [];
PageView widgetPageView = PageView(
children: children,
);
dataList.forEach((e) {
Leader c = Leader.fromJson(e);
children.add(Text('child 1'));
});