ios - 如何知道我的 WKWebview 派生 subview 何时加载到 Swift 中

Question

我有一个 View ，它在 viewDidLoad() 方法中发生某些操作后加载 subview :

   override func viewDidLoad() {
        super.viewDidLoad()
        //OTHER STUFF...
        let config = WKWebViewConfiguration()
        config.userContentController = contentController
        self.myWebView = WKWebView(
            frame: self.containerView.bounds,
            configuration: config
        )
        self.myWebView.navigationDelegate = self
        self.view.addSubview(self.myWebView)
    }

加载 WebView 后，我需要做一些检查。我该怎么做:

webSubviewDidLoad() {
    //do stuff
}

Answer 1

有一个特定的委托(delegate) didFinishNavigation

didFinishNavigation documentation

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let configuration = WKWebViewConfiguration()
        let webView = WKWebView(frame: .zero, configuration: configuration)
        webView.translatesAutoresizingMaskIntoConstraints = false
        webView.navigationDelegate = self
        view.addSubview(webView)

        /* add layout constraints that make the webview fitting in your view */

        if let url = URL(string: "https://google.com") {
            webView.load(URLRequest(url: url))
        }
    }

}

  extension ViewController: WKNavigationDelegate {

    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        print("Finished navigating to url \(webView.url)")
    }

}

或者您可以检查进度的 estimatedProgress 属性

estimatedProgress documentation