如何从webView中的按钮单击显示ViewController？Swift/Xcode_Swift_Webview_Io

如何从webView中的按钮单击显示ViewController？Swift/Xcode

swift webview io

如何从webView中的按钮单击显示ViewController？Swift/Xcode,swift,webview,io,Swift,Webview,Io,这是我的雨燕 func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool { if (navigationType == UIWebViewNavigationType.formSubmitted) { let VC = self.storyboard?

这是我的雨燕

     func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool {

    if (navigationType == UIWebViewNavigationType.formSubmitted) {
        let VC = self.storyboard?.instantiateViewController(withIdentifier: "UITabBarController") as? UITabBarController

        let navigationController = UINavigationController(rootViewController: VC!)
        self.navigationController?.present(navigationController, animated: true, completion:nil)


    }
    return true
}

这是我在webView中加载的HTML文件

<html>
<head>
<script>
function myFunction()
{
presentViewController('UITabBarController');
}
</script>
</head>
<body>
<input name="myFunction" type="submit" onClick="myFunction"     value="myFunction">
</body>
</html>

这不管用，有什么建议吗？我不介意它是链接而不是按钮

它是viewcontroller内部的webView，单击链接/按钮后，它将显示下一个带有选项卡栏的viewcontroller。

您是否尝试打开链接？您应该收到func webViewUIWebView、shouldStartLoadWith:URLRequest、navigationType:UIWebViewNavigationType委托回调。在这里，您应该检查链接是否是触发视图控制器打开的链接。如果是特殊链接，您将打开viewController并返回false。否则返回true