func loadWebKit() {

let screenWidth:CGFloat = view.frame.size.width
let screenHeight:CGFloat = view.frame.size.height
// iPhone X , X以外は0となる
if #available(iOS 11.0, *) {
let window = UIApplication.shared.keyWindow
topPadding = window!.safeAreaInsets.top
}

//self.wkWebView.frame = CGRect(x: 0, y:topPadding, width:screenWidth, height:screenHeight*0.6)
self.wkWebView.frame = CGRect(x:-50, y:topPadding, width:screenWidth, height:screenHeight*0.6)

//wkWebView.frame = view.frame
wkWebView.navigationDelegate = self
wkWebView.uiDelegate = self

// スワイプでの「戻る・すすむ」を有効にする
wkWebView.allowsBackForwardNavigationGestures = true

//読み込むURL

let str: String = "https://taiwan-travel.net"
str = str.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)!

if let url = URL(string: str) {

let request = URLRequest(url: url)
wkWebView.load(request)

}

view.addSubview(wkWebView)

//念のためにviewの更新をする
view.setNeedsLayout()

//隠すこともできます//表示はfalse
wkWebView.isHidden = true

}

func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {
print("遷移開始")

}

//起動時かどうかの判定
var _isLoaded: Bool!
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
print("読み込み完了")
print(webView.title as Any)



} else {

//起動時スキップし、読み込み完了後に何かする
print("\n*** first time ***")
_isLoaded = true
self.getResult()

}


self.getResult()
print("webViewDidFinishLoad")


}

func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration,
for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {

if navigationAction.targetFrame == nil {
webView.load(navigationAction.request)
}

return nil
}

func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error){

SVProgressHUD.showError(withStatus:"Wi-Fi Error")

}

func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error){

SVProgressHUD.showError(withStatus:"Wi-Fi Error")

}

func getResult() {

//何かする

}