Flutter，如何从Firestore获取各个索引项的图像URL并在列表视图中显示

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

class ImageList extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return StreamBuilder<QuerySnapshot>(
      stream: FirebaseFirestore.instance.collection('images').snapshots(),
      builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
        if (snapshot.hasError) {
          return Text('Error: ${snapshot.error}');
        }

        if (snapshot.connectionState == ConnectionState.waiting) {
          return Text('Loading...');
        }

        List<String> imageURLs = [];
        snapshot.data.docs.forEach((DocumentSnapshot document) {
          Map<String, dynamic> data = document.data();
          String imageURL = data['imageURL'];
          imageURLs.add(imageURL);
        });

        return ListView.builder(
          itemCount: imageURLs.length,
          itemBuilder: (BuildContext context, int index) {
            return ListTile(
              leading: Image.network(imageURLs[index]),
              title: Text('Image $index'),
            );
          },
        );
      },
    );
  }
}