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WKWebViewコンテンツがロードされた関数が呼び出されない

wKWebView内のコンテンツが完全に読み込まれた後に呼び出される関数を取得しようとしました。 「didFinishNavigation」関数は、Apple Swift WKNavigation Documentation。

func webView(webView: WKWebView!, didFinishNavigation navigation: WKNavigation!) {
    println("WebView content loaded.")
}

ただし、関数は呼び出されません。

import UIKit
import WebKit

class ViewController: UIViewController WKNavigationDelegate {

   override func loadView() {
       super.loadView()

       self.webView = WKWebView(frame:self.containerView.frame, configuration: WKWebViewConfiguration())
       self.containerView.addSubview(webView!)
       self.containerView.clipsToBounds = true

   }

   override func viewDidLoad() {
       super.viewDidLoad()

       var url = NSURL(string:"http://google.com/")
       var req = NSURLRequest(URL:url)
       self.webView!.loadRequest(req)
   }

   func webView(webView: WKWebView!, didFinishNavigation navigation: WKNavigation!) {
       println("WebView content loaded.")
   }

}
iosswiftios8wkwebview
40
Darx

NavigationDelegateを設定していません。それを設定すると、問題ないはずです。

class ViewController: UIViewController, WKNavigationDelegate {


  override func viewDidLoad() {
    super.viewDidLoad()

    let noLayoutFormatOptions = NSLayoutFormatOptions(rawValue: 0)

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

    view.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|[webView]|", options: noLayoutFormatOptions, metrics: nil, views: ["webView": webView]))

    view.addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|[webView]|", options: noLayoutFormatOptions, metrics: nil, views: ["webView": webView]))

    let url = NSURL(string: "http://google.com")
    let request = NSURLRequest(URL: url)
    webView.loadRequest(request)
  }

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

}

そして、これはSwift 3。

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)

        [webView.topAnchor.constraint(equalTo: view.topAnchor),
         webView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
         webView.leftAnchor.constraint(equalTo: view.leftAnchor),
         webView.rightAnchor.constraint(equalTo: view.rightAnchor)].forEach  { anchor in
            anchor.isActive = true
        }

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

}

  extension ViewController: WKNavigationDelegate {

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

}
54
Sandeep