ios - 方法 decidePolicyForNavigationAction 从未调用过，WKWebView Swift

Question

我正在开发一个在 Swift 中使用 WKWebView 显示网页的应用程序。我需要禁用用户选择和标注(因为 Web 会加载图表)，但我找不到任何方法来使用 WKWebView 来执行此操作。

我正在尝试使用这段代码，但不幸的是，似乎从未调用过此方法。您知道我的代码的哪一部分可能有问题吗？我该怎么办？

public func webView(webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler: (WKNavigationActionPolicy) -> Void) {
        if (navigationAction.navigationType == .linkActivated){
            decisionHandler(.allow)
        } else {
            decisionHandler(.cancel)
        }
}

这是我的完整代码:

import WebKit
import UIKit

class ViewController: UIViewController, WKNavigationDelegate, WKUIDelegate {

@IBOutlet weak var webView: WKWebView!

override func viewDidLoad() {
    super.viewDidLoad()

    let url = URL(string: "http://danfg95glucose.azurewebsites.net")
    let request = URLRequest(url: url!)

    webView.navigationDelegate = self
    self.webView.uiDelegate = self
    webView.load(request)

}

func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    print("loaded")

}

func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
    if navigationAction.targetFrame == nil {
        webView.load(navigationAction.request)
    }
    return nil
}


public func webView(webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler: (WKNavigationActionPolicy) -> Void) {
    if (navigationAction.navigationType == .linkActivated){
        decisionHandler(.allow)
    } else {
        decisionHandler(.cancel)
    }
}
}

非常感谢您的回复。我正在学习快速编程，但我有点迷茫。

Answer 1

忘了_

public func webView(_ webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler: (WKNavigationActionPolicy) -> Void) {
    if (navigationAction.navigationType == .linkActivated){
        decisionHandler(.allow)
    } else {
        decisionHandler(.cancel)
    }
}