使用未声明的类型'WKNavigationDelegate'

Question

我正在尝试通过网络视图加载URL。

import UIKit


class ViewController: UIViewController, WKNavigationDelegate{

    @IBOutlet weak var webView: WKWebView!
    @IBOutlet weak var statusLabel: UILabel!
    @IBOutlet weak var activityIndicator: UIActivityIndicatorView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }


    @IBAction func loadButtonPressed(_ sender: UIButton) {
        if let url = URL(string: "https://www.google.com") {
            let urlRequest = URLRequest(url: url)

            webView.load(URLRequest)
        }
    }
}

它显示Use of undeclared type 'WKNavigationDelegate'。我找不到问题所在。我该如何解决？我想念什么吗？

Answer 1

好，我修复它。

我必须先做import WebKit