FLUTTER:如何在网格视图中改变背景颜色？

dependencies:
  flutter:
    sdk: flutter
  flutter_staggered_grid_view: ^0.4.0

import 'package:flutter/material.dart';
import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';

GridView.builder(
  gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
    crossAxisCount: 2, // 每行显示的单元格数量
    crossAxisSpacing: 10, // 单元格之间的水平间距
    mainAxisSpacing: 10, // 单元格之间的垂直间距
  ),
  itemCount: 10, // 单元格的总数
  itemBuilder: (BuildContext context, int index) {
    return Container(
      color: index % 2 == 0 ? Colors.blue : Colors.green, // 根据索引来决定背景颜色
      child: Center(
        child: Text('Cell $index'),
      ),
    );
  },
)