WKWebView不显示网站(Swift 4、iOS 11、Xcode9.3)

Question

由于某些原因，我的应用程序中的WKWebView不会显示任何像"https://www.google.com.au“这样的网站。我曾尝试在info.plist中将“允许任意加载”更改为“是”，但这并没有解决问题。

请救命！谢谢

我的代码：

import UIKit
import WebKit

class ViewController: UIViewController {

    @IBOutlet weak var webView: WKWebView!

    override func viewDidLoad() {
        super.viewDidLoad()
        displayWebPage()
    }

    private func displayWebPage() {
        let url = URL(string: "https://www.google.com.au")
        let request = URLRequest(url: url!)
        webView.load(request)
    }
}

StoryBoard的截图：

​

Answer 1

连接WKNavigationDelegate，这将修复网页不加载尝试以下代码。加载网页时抛出的任何错误都将在webViewDidFail委托中打印出来。

class ViewController: UIViewController, WKNavigationDelegate {

    @IBOutlet weak var webView: WKWebView!

    override func viewDidLoad() {
        super.viewDidLoad()
        displayWebPage()
    }

    private func displayWebPage() {
        let url = URL(string: "https://www.google.com.au")
        let request = URLRequest(url: url!)
        webView.navigationDelegate = self
        webView.load(request)
    }
    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
        print(error)
    }
}

Answer 2

设置webView代理。

    webView.UIDelegate = self
    webView.navigationDelegate = self

还可以尝试在异常域列表中添加您的域

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
    <key>NSExceptionDomains</key>
    <dict>
        <key>google.com.au</key>
        <dict>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
            <key>NSIncludesSubdomains</key>
            <true/>
        </dict>
    </dict>
</dict>

Answer 3

将控制器连接到WKUIDelegate，在视图控制器中添加loadView()方法，并使用WKWebViewConfiguration初始化web视图。

​

import UIKit
import WebKit

class ViewController: UIViewController, WKUIDelegate {

    @IBOutlet weak var webView: WKWebView!
    
    var webView: WKWebView!
    
    override func loadView() {
        let myConfiguration = WKWebViewConfiguration()
        webView = WKWebView(frame: .zero, configuration: myConfiguration)
        webView.uiDelegate = self
        view = webView
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        displayWebPage()
    }

    private func displayWebPage() {
        let url = URL(string: "https://www.google.com.au")
        let request = URLRequest(url: url!)
        webView.load(request)
    }
}

​

来源：WK Web View