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WKWebView无法在Cocoa Touch Framework中运行

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我已经为Cocoa Touch Framework创建了示例应用程序，并且已经通过带有示例URL的WKWebView . 我在其中一个应用程序中使用了该框架，并尝试从主类中打开wkwebview . 下面是我的可可触摸框架代码 . 它始终显示我无法发出信号服务com.apple.WebKit.Networking：113：无法在控制台中找到此消息的指定服务 .

import UIKit
import WebKit

public class ConnectedAppController: UIViewController, WKNavigationDelegate {

    var webView : WKWebView!

  override public func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.

    }

  public func opensampleWebView() {

    let myBlog = "https://www.google.com/"
    let url = NSURL(string: myBlog)
    let request = URLRequest(url: url! as URL)

    // init and load request in webview.
    webView = WKWebView(frame: self.view.frame)
    webView.navigationDelegate = self
    self.view.addSubview(webView)
    webView.load(request)
  }

  private func webView(webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
    print(error.localizedDescription)
  }
  public func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
    print("Strat to load")
  }
  public func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    print("finish to load")
  }
ios wkwebview

2 回答

  • 0

    它's not obvious from your question, but I suspect you'从另一个类的 prepareForSegue 调用中调用 opensampleWebView .

    虽然您在 webView.load(request) 之前正确地调用 self.view.addSubview(webView) ，但我怀疑您已经加载了're attempting to add to hasn' .

    如果你在 viewDidLoad 中调用 opensampleWebView() 有什么区别吗？

    override public func viewDidLoad() {
    super.viewDidLoad()
    opensampleWebView()
 }
    回复于
  • 0

    你需要覆盖函数 loadView()

    Swift 4

    public class ConnectedAppController: UIViewController, WKNavigationDelegate {

    var webView : WKWebView!

    override func loadView() {
        webView = WKWebView()
        webView.navigationDelegate = self
        view = webView
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        self.webView.allowsBackForwardNavigationGestures = true
        let myBlog = "https://www.google.com/"
        if let url = URL(string: myBlog) {
            self.webView.load(URLRequest(url: url))
        }

    }

}
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