如何在swift中将最终的url返回给委托者？

protocol URLDelegate: class {
    func didReceiveURL(_ url: URL)
}

class URLHandler {
    weak var delegate: URLDelegate?
    
    func handleURL(_ url: URL) {
        // 处理URL的逻辑
        
        // 将最终的URL返回给委托者
        delegate?.didReceiveURL(url)
    }
}

class ViewController: UIViewController, URLDelegate {
    let urlHandler = URLHandler()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        urlHandler.delegate = self
    }
    
    // 实现URLDelegate协议的方法
    func didReceiveURL(_ url: URL) {
        // 处理最终的URL
        print("Received URL: \(url)")
    }
    
    // 调用URLHandler处理URL的方法
    func handleURL() {
        let url = URL(string: "https://example.com")!
        urlHandler.handleURL(url)
    }
}