如何使用Firebase存储中的图像填充UICollectionView单元格？

import UIKit
import FirebaseStorage

class MyCollectionViewCell: UICollectionViewCell {
    @IBOutlet weak var imageView: UIImageView!
}

class MyViewController: UIViewController, UICollectionViewDataSource {
    var imageUrls: [URL] = [] // 存储图像URL的数组
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 获取Firebase存储的引用
        let storage = Storage.storage()
        let storageRef = storage.reference()
        
        // 获取图像文件的URL
        let imageRef = storageRef.child("images/image.jpg")
        imageRef.downloadURL { (url, error) in
            if let error = error {
                print("下载图像失败：\(error.localizedDescription)")
            } else if let url = url {
                self.imageUrls.append(url)
                self.collectionView.reloadData()
            }
        }
    }
    
    // UICollectionViewDataSource方法
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return imageUrls.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "MyCell", for: indexPath) as! MyCollectionViewCell
        
        // 使用SDWebImage库异步加载图像
        cell.imageView.sd_setImage(with: imageUrls[indexPath.row], completed: nil)
        
        return cell
    }
}