1.iOS12 之前 使用 UIWebView
1> private lazy var webV : UIWebView = { let v = UIWebView(frame: self.view.bounds) let url = URL(string: "https://www.baidu.com/") v.delegate = self if let url = url { let urlRequest = URLRequest(url: url) v.loadRequest(urlRequest) } return v }() 2> override func viewDidLoad() { super.viewDidLoad() view.addSubview(webV) } 3> extension ViewController:UIWebViewDelegate{ }
2. iOS 12 之后 系统推荐WKWebView 替代 UIWebView
1> private lazy var wkWebV: WKWebView = { let config = WKWebViewConfiguration() // 设置偏好设置 config.preferences = WKPreferences() // // 默认为0 // config.preferences.minimumFontSize = 10 // 默认认为YES config.preferences.javaScriptEnabled = true // 在iOS上默认为NO,表示不能自动通过窗口打开 config.preferences.javaScriptCanOpenWindowsAutomatically = false // web内容处理池,由于没有属性可以设置,也没有方法可以调用,不用手动创建 config.processPool = WKProcessPool() // 通过JS与webview内容交互 config.userContentController = WKUserContentController() // 注入JS对象名称AppModel,当JS通过AppModel来调用时, // 我们可以在WKScriptMessageHandler代理中接收到 // config.userContentController.add(self, name: "AppModel") let url = URL(string: "https://www.baidu.com/") let web = WKWebView(frame: view.bounds, configuration: config) web.navigationDelegate = self web.uiDelegate = self if let url = url { let urlRequest = URLRequest(url: url) web.load(urlRequest) } return web }() 2> view.addSubview(wkWebV) 3. extension ViewController:WKNavigationDelegate,WKUIDelegate,WKScriptMessageHandler{ func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) { } }