Flutter :在Swiper中完成特定逻辑后如何显示下一个索引，其中GridView也在Swiper中设置？

dependencies:
  flutter_swiper: ^1.1.6
  flutter_staggered_grid_view: ^0.4.0

import 'package:flutter_swiper/flutter_swiper.dart';
import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';

Swiper(
  itemBuilder: (BuildContext context, int index) {
    return GridView.builder(
      gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
        crossAxisCount: 2,
        crossAxisSpacing: 10,
        mainAxisSpacing: 10,
      ),
      itemCount: yourData.length,
      itemBuilder: (BuildContext context, int index) {
        return YourGridItemWidget(yourData[index]);
      },
    );
  },
  itemCount: yourData.length,
  onIndexChanged: (int index) {
    // 在这里可以处理特定逻辑
    // 根据需要更新下一个索引
    setState(() {
      // 更新下一个索引
      nextIndex = index + 1;
    });
  },
)