我想使用flutter在网格视图中导航我的卡片。我的卡片包含图像而不是图标

import 'package:flutter/material.dart';

class MyCard extends StatelessWidget {
  final String imageUrl;
  
  MyCard({required this.imageUrl});
  
  @override
  Widget build(BuildContext context) {
    return Card(
      child: Image.network(imageUrl),
    );
  }
}

class MyGridView extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return GridView.count(
      crossAxisCount: 2, // 每行显示的卡片数量
      children: <Widget>[
        MyCard(imageUrl: 'https://example.com/image1.jpg'),
        MyCard(imageUrl: 'https://example.com/image2.jpg'),
        MyCard(imageUrl: 'https://example.com/image3.jpg'),
        // 添加更多的卡片
      ],
    );
  }
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('My App'),
        ),
        body: MyGridView(),
      ),
    );
  }
}

void main() {
  runApp(MyApp());
}