Error : Cannot convert value of type 'URL?' to expected argument type 'URLRequest

Question

import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate {
    var webView : WKWebView!
     
    override func loadView() {
        webView = WKWebView()
        webView.navigationDelegate = self
        view = webView
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        let url = URL(string: "https://www.google.com")!
        webView.load(url)
        webView.allowsBackForwardNavigationGestures = true
           }
}

你好，我是 Swift 编程新手。我试图在 WKWebView 的帮助下在导航控制器上加载一个简单的网站。但我无法继续下去。因为我在 line

中遇到错误

let URL = let url = URL(string: "https://www.google.com")!

我需要知道两件事

错误是什么意思？
我该如何解决？

Answer 1

错误很明显。您需要传递一个 URLRequest 对象作为参数。

let url = URL(string: "https://www.google.com")!
webView.load(URLRequest(url: url))

Error : Cannot convert value of type 'URL?' to expected argument type 'URLRequest

Error : Cannot convert value of type 'URL?' to expected argument type 'URLRequest

xcode

ios

swift

wkwebview