Javascript WKWebView使用swift在iOS9中加载HTML内容的速度太慢

我一直在尝试将WKWebView集成为UIViewController中另一个webview的子视图。我已经能够加载内容并与swift和javascript正确通信。但是，在不进行任何数据操作的情况下加载HTML内容需要将近2秒的时间

我还测试了在不加载任何脚本的情况下，仅使用空HTML体加载WKWebView。这仍然需要600毫秒才能加载

viewDidLoad和webView（webView:WKWebView，didFinishNavigation:WKNavigation！）之间所用的时间差为600毫秒，即使HTML包含空正文

ViewController的viewDidLoad功能

VCWKWebView类：

class VCWKWebView: WKWebView  {

    static let wkProcess: WKProcessPool = WKProcessPool()

    private static let _url: NSURL = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("index", ofType: "html",inDirectory:"www")!)

    private static let _accessUrl: NSURL = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("www", ofType: nil)!)


    func loadContent(){
        NSLog("started - %@.%@", String(self.dynamicType), __FUNCTION__)
        if #available(iOS 9.0, *) {
            self.loadFileURL(VCWKWebView._url, allowingReadAccessToURL: VCWKWebView._accessUrl)
        } else {
            // Fallback on earlier versions
        }
        NSLog("ended - %@.%@", String(self.dynamicType), __FUNCTION__)
    }

    override init(frame: CGRect, configuration: WKWebViewConfiguration) {
        super.init(frame:frame, configuration:configuration)
    }

    convenience init(frame: CGRect){
        let wkConfiguration: WKWebViewConfiguration = WKWebViewConfiguration()
        self.init(frame:frame,configuration:wkConfiguration)
    }

    deinit{
        print("deinit of VCWKWebView is called")
    }
}

---

有人能帮我集成WKWebView，以便更快地加载内容吗？

发现了有用的东西吗？对于一些javascript密集型网页，我用WKWebView替换UIWebView时遇到了类似的问题。WKWebView的速度要慢得多，这似乎与所有关于它们的建议背道而驰。有人有什么想法吗？有没有想过解决WKWebView加载速度慢的问题？

class VCWKWebView: WKWebView  {

    static let wkProcess: WKProcessPool = WKProcessPool()

    private static let _url: NSURL = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("index", ofType: "html",inDirectory:"www")!)

    private static let _accessUrl: NSURL = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("www", ofType: nil)!)


    func loadContent(){
        NSLog("started - %@.%@", String(self.dynamicType), __FUNCTION__)
        if #available(iOS 9.0, *) {
            self.loadFileURL(VCWKWebView._url, allowingReadAccessToURL: VCWKWebView._accessUrl)
        } else {
            // Fallback on earlier versions
        }
        NSLog("ended - %@.%@", String(self.dynamicType), __FUNCTION__)
    }

    override init(frame: CGRect, configuration: WKWebViewConfiguration) {
        super.init(frame:frame, configuration:configuration)
    }

    convenience init(frame: CGRect){
        let wkConfiguration: WKWebViewConfiguration = WKWebViewConfiguration()
        self.init(frame:frame,configuration:wkConfiguration)
    }

    deinit{
        print("deinit of VCWKWebView is called")
    }
}