从flutter中的List<Widget>更新小部件？

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  List<Widget> widgetList = [
    // 初始的小部件列表
    Text('Widget 1'),
    Text('Widget 2'),
    Text('Widget 3'),
  ];

  @override
  Widget build(BuildContext context) {
    return Column(
      children: widgetList,
    );
  }
}

void updateWidgetList() {
  setState(() {
    widgetList = [
      Text('Updated Widget 1'),
      Text('Updated Widget 2'),
      Text('Updated Widget 3'),
    ];
  });
}

FlatButton(
  onPressed: () {
    updateWidgetList();
  },
  child: Text('Update Widgets'),
),