<key>NSAppTransportSecurity</key> <dict> <key>NSAllowsArbitraryLoads</key> <true/> </dict>

//从本地加载html let path:String! = NSBundle.mainBundle().pathForResource("index", ofType: "html") webView.loadRequest(NSURLRequest(URL: NSURL.fileURLWithPath(path))) //从网络加载 webView.loadRequest(NSURLRequest(URL: NSURL(string: "https://www.bing.com")!))

//调用js无参数的方法 webView.stringByEvaluatingJavaScriptFromString("hi()") //调用js有参数的方法hello(msg) let js = String(format: "hello('%@')", "liuyanwei") webView.stringByEvaluatingJavaScriptFromString(js) //调用js的参数为json对象 let js = String(format: "hello(%@)", "{'obj':'liuyanwei'}") webView.stringByEvaluatingJavaScriptFromString(js) //从文件中加载一段js代码然后执行 do{ let jsString = try String(contentsOfFile: NSBundle.mainBundle().pathForResource("test", ofType: "js")!,encoding: NSUTF8StringEncoding) self.webView.stringByEvaluatingJavaScriptFromString(jsString) } catch{} //直接执行alert webView.stringByEvaluatingJavaScriptFromString("alert('hi')") //执行有返回值的js函数 NSLog("%@", webView.stringByEvaluatingJavaScriptFromString("getName()")!)

var hi = function(){ alert("hello") $(".info").html("hi"); } var hello = function(msg){ alert("hello " + msg) if(msg.obj != undefined) alert(msg.obj) } var getName = function(){ return "liuyanwei" }

//这段代码是原生js代码，在js中的作用是做页面跳转 //webView通过拦截url请求方式拦截到request，通过解析从而调用 ios hello方法，参数是hello_liuyanwei document.location = "hello://hello_liuyanwei";

//webView 需要实现UIWebViewDelegate委托方法 // class ViewController: UIViewController,UIWebViewDelegate .... // webView.delegate = self func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool{ //如果请求协议是hello 这里的hello来自js的调用，在js中设为 document.location = "hello://liuyanwei 你好"; //scheme：hello ，msg：liuyanwei 你好 //通过url拦截的方式，作为对ios原生方法的呼叫 if request.URL?.scheme == "hello"{ let method:String = request.URL?.scheme as String! let sel = Selector(method+":") self.performSelector(sel, withObject:request.URL?.host) request.URL?.path //如果return true ，页面加载request，我们只是当做协议使用所以不能页面跳转 return false } return true }

//加载页面 config = WKWebViewConfiguration() //设置位置和委托 webView =WKWebView(frame: self.webWrap.frame, configuration: config) webView.navigationDelegate = self webView.UIDelegate = self self.webWrap.addSubview(webView) //加载网页 //webView.loadRequest(NSURLRequest(URL: NSURL(string: "https://www.bing.com")!)) //加载本地页面 webView.loadRequest(NSURLRequest(URL: NSURL.fileURLWithPath(NSBundle.mainBundle().pathForResource("index", ofType: "html")!))) //允许手势，后退前进等操作 webView.allowsBackForwardNavigationGestures = true

//前进 webView.goBack() //后退 webView.goForward() //刷新 let request= NSURLRequest(URL:webView.URL!) webView.loadRequest(request) //监听是否可以前进后退，修改btn.enable属性 webView.addObserver(self, forKeyPath: "loading", options: .New, context: nil) //监听加载进度 webView.addObserver(self, forKeyPath: "estimatedProgress", options: .New, context: nil) //重写self的kvo方法 override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) { if (keyPath == "loading") { gobackBtn.enabled = webView.canGoBack forwardBtn.enabled = webView.canGoForward } if (keyPath == "estimatedProgress") { //progress是UIProgressView progress.hidden = webView.estimatedProgress==1 progress.setProgress(Float(webView.estimatedProgress), animated: true) }}

//alert捕获 func webView(webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: () -> Void) { // completionHandler() let alert = UIAlertController(title: "ios-alert", message: "\(message)", preferredStyle: .Alert) alert.addAction(UIAlertAction(title: "ok", style: .Default, handler:nil)) alert.addAction(UIAlertAction(title: "cancel", style: .Cancel, handler: nil)) self.presentViewController(alert, animated: true, completion: nil) }

//直接调用js webView.evaluateJavaScript("hi()", completionHandler: nil) //调用js带参数 webView.evaluateJavaScript("hello('liuyanwei')", completionHandler: nil) //调用js获取返回值 webView.evaluateJavaScript("getName()") { (any,error) -> Void in NSLog("%@", any as! String) }

config = WKWebViewConfiguration() //注册js方法 config.userContentController.addScriptMessageHandler(self, name: "webViewApp") webView = WKWebView(frame: self.webWrap.frame, configuration: config)

//实现WKScriptMessageHandler委托 class ViewController：WKScriptMessageHandler //实现js调用ios的handle委托 func userContentController(userContentController: WKUserContentController, didReceiveScriptMessage message: WKScriptMessage) { //接受传过来的消息从而决定app调用的方法 let dict= message.body as! Dictionary<String,String> let method:String = dict["method"]! let param1:String = dict["param1"]! if method=="hello"{ hello(param1) } }

var message = { 'method' : 'hello', 'param1' : 'liuyanwei', }; window.webkit.messageHandlers.webViewApp.postMessage(message);

// 页面开始加载时调用 - (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation; // 当内容开始返回时调用 -(void)webView:(WKWebView *)webView didCommitNavigation:(WKNavigation*)navigation; // 页面加载完成之后调用 - (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation; // 页面加载失败时调用 - (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation; // 接收到服务器跳转请求之后调用 - (void)webView:(WKWebView *)webView didReceiveServerRedirectForProvisionalNavigation:(WKNavigation *)navigation; // 在收到响应后，决定是否跳转 - (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler; // 在发送请求之前，决定是否跳转 - (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler;