多次调用ListView.builder

ListView.builder(
  itemCount: items.length, // 确保这里的 items 是正确的数据源
  itemBuilder: (context, index) {
    return ListTile(
      title: Text(items[index].title),
    );
  },
);

ListView.builder(
  itemCount: items.length,
  itemBuilder: (context, index) {
    return RepaintBoundary(
      child: ListTile(
        title: Text(items[index].title),
      ),
    );
  },
);

class MyListWidget extends StatefulWidget {
  @override
  _MyListWidgetState createState() => _MyListWidgetState();
}

class _MyListWidgetState extends State<MyListWidget> {
  List<Item> items = [];

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: items.length,
      itemBuilder: (context, index) {
        return ListTile(
          title: Text(items[index].title),
        );
      },
    );
  }

  void updateItems(List<Item> newItems) {
    setState(() {
      items = newItems;
    });
  }
}