WKUserContentController & JS调用OC

1.window.webkit.messageHandlers.<事件名>.postMessage(需要传递的数据)

（例：window.webkit.messageHandlers.getToken.postMessage()）

2.iOS:WKWebViewConfiguration().userContentController.add(self, name: "getToken")

3.WKScriptMessageHandler协议内

func userContentController(_userContentController:WKUserContentController, didReceive message:WKScriptMessage) {

func userContentController(_userContentController:WKUserContentController, didReceive message:WKScriptMessage) {

        ifmessage.name=="getToken"{

        //OC 调用JS

            let jsStr = "window.JSBridge.setToken('\(CNNetworkConfig.shared.xAuthToken)');"

            self.webview.evaluateJavaScript(jsStr) { (temp, error)in

            }

        }

}

**最后一定要移除 removeScriptMessageHandler