wkwebview 传值给js

import WebKit

class ViewController: UIViewController, WKScriptMessageHandler {
    var webView: WKWebView!

    override func viewDidLoad() {
        super.viewDidLoad()
        
        let config = WKWebViewConfiguration()
        config.userContentController.add(self, name: "nativeBridge")
        
        webView = WKWebView(frame: view.bounds, configuration: config)
        view.addSubview(webView)
        
        if let url = URL(string: "https://example.com") {
            let request = URLRequest(url: url)
            webView.load(request)
        }
    }

    func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
        if message.name == "nativeBridge", let data = message.body as? String {
            // Handle incoming messages from JS if needed
        }
    }

    func sendDataToJS(data: String) {
        webView.evaluateJavaScript("receiveDataFromNative('\(data)')", completionHandler: nil)
    }
}

function receiveDataFromNative(data) {
    console.log('Received data from native:', data);
    // 处理接收到的数据
}