ios – 使用swift在WKWebView上显示活动指示器

我正在处理以下代码,并尝试在页面加载时在视图中显示活动指标.

我试图实现WKNavigationDelegate方法,但是我没有显示出来.

关于如何解决这个问题的任何建议？

我没有在任何地方设置SupportWebView视图委托,但我不知道如何在swift ..

import UIKit
import WebKit

class SupportWebView: UIViewController,WKNavigationDelegate {
    @IBOutlet var containerView : UIView? = nil

    var webView: WKWebView?

    override func loadView() {
        super.loadView()
        self.webView = WKWebView()
        self.view = self.webView
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        var dataManager = DataManager.sharedDataManager()
        var url = dataManager.myValidURL
        var req = NSURLRequest(URL:url!)
        self.webView!.loadRequest(req)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // dispose of any resources that can be recreated.
    }

    func webView(webView: WKWebView,didStartProvisionalNavigation navigation: WKNavigation!) {
        UIApplication.sharedApplication().networkActivityIndicatorVisible = true
    }


    func webView(webView: WKWebView,didFinishNavigation navigation: WKNavigation!) {
        UIApplication.sharedApplication().networkActivityIndicatorVisible = false
    }
}

解决方法

已经评论过,你忘了设置webView代理：

override func loadView() {
    super.loadView()
    self.webView = WKWebView()
    self.webView.navigationDelegate = self
    self.view = self.webView
}