swift 笔记：iOS与JavaScript的交互（三）：WKWebView 3. WKUiDelegate - 6 -3重写WKScriptMessageHandler中的用户内容控制器（_：

Posted 2021-05-19

extension WKWebViewWithMessageHandler: WKScriptMessageHandler {
  func userContentController(
      _ userContentController: WKUserContentController,
      didReceive message: WKScriptMessage) {
    
    let msg = message.body as! String

    let ac = UIAlertController(title: msg, message: msg, preferredStyle: .alert)
    ac.addAction(UIAlertAction(title: "Ok", style: .default))
    self.present(ac, animated: true)
  }
}