检测WKWebView中的非导航按钮单击

// 实现WKNavigationDelegate代理方法
class ViewController: UIViewController, WKNavigationDelegate {
    var webView: WKWebView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 初始化WKWebView
        let configuration = WKWebViewConfiguration()
        webView = WKWebView(frame: view.bounds, configuration: configuration)
        webView.navigationDelegate = self
        view.addSubview(webView)
        
        // 加载网页
        let url = URL(string: "https://example.com")
        let request = URLRequest(url: url!)
        webView.load(request)
    }
    
    // 网页加载完成时调用
    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        // 注入JavaScript代码
        let script = """
        var buttons = document.getElementsByTagName('button');
        for (var i = 0; i < buttons.length; i++) {
            buttons[i].addEventListener('click', function() {
                // 执行按钮点击事件的回调函数
                buttonClicked(this);
            });
        }
        
        function buttonClicked(button) {
            // 在此处执行按钮点击事件的操作
            console.log('Button clicked:', button.innerText);
        }
        """
        let userScript = WKUserScript(source: script, injectionTime: .atDocumentEnd, forMainFrameOnly: true)
        webView.configuration.userContentController.addUserScript(userScript)
    }
}