xcode 从未调用方法decidePolicyForNavigationAction，WKWebView Swift
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Method decidePolicyForNavigationAction never called, WKWebView Swift
提问by Daniel Fernandez
I am developing an app who shows a web page using WKWebView in Swift. I need to disable the user selection and the callout (because the web loads a graph) and I don't find any way to do this with WKWebView.
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（因为网络加载了一个图表）并且我没有找到任何方法来使用 WKWebView 来做到这一点。
I am trying with this code but unfortunately it seems that this method is never called. Do you know in which part of my code may be the fault or what can I do?
我正在尝试使用此代码，但不幸的是，似乎从未调用过此方法。你知道我的代码的哪一部分可能是错误的或者我能做什么？
public func webView(webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler: (WKNavigationActionPolicy) -> Void) {
if (navigationAction.navigationType == .linkActivated){
decisionHandler(.allow)
} else {
decisionHandler(.cancel)
}
}
This is my full code:
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)
}
}
}
Thank you so much for your responses. I am learning swift programming and I am a bit lost.
非常感谢您的回复。我正在学习快速编程，但我有点迷茫。
回答by Sh_Khan
forget _
忘记 _
public func webView(_ webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler: (WKNavigationActionPolicy) -> Void) {
if (navigationAction.navigationType == .linkActivated){
decisionHandler(.allow)
} else {
decisionHandler(.cancel)
}
}
