swiftUI里用WKWebView,如何与H5里的JS交互?我调用了userContentController,也调用了userContentController.add(messageHandler, name: "messageHandler"),但我在H5里面的window找不到webkit,是未定义。我不知道代码应该怎么写,H5应该通过什么方式来调用webkit
func updateUIView(_ uiView:WKWebView,context:Context) {
if let url = url, let requestURL=URL(string:url){
let webConfiguration=WKWebViewConfiguration()
let userContentController=WKUserContentController()
webConfiguration.userContentController=userContentController
uiView.load(URLRequest(url:requestURL))
// var cache=URLCache.init()
URLCache.shared.removeAllCachedResponses()
URLCache.shared.diskCapacity=0
URLCache.shared.memoryCapacity=0;
userContentController.add(messageHandler, name: "messageHandler")
}
}