flutter - 如何在 Flutter 中隐藏 webview 中的元素。？

Question

我想在我的颤振应用程序中隐藏网站部分。我在 pubspec.yaml 文件中添加了 flutter flutter_webview_plugin 并将包导入到我的 feed.dart 页面。当flutterWebviewPlugin.evalJavascript("alert('Hi, I just executed')");我运行应用程序时执行。但flutterWebviewPlugin.evalJavascript("document.getElementById('header04-2j').style.display = 'none';");我试图隐藏标题但它不起作用。下面是源代码。

class FeedPage extends StatefulWidget {
  @override
  FeedPageState createState() {
    return new FeedPageState();
  }
}

class FeedPageState extends State<FeedPage> {
  final flutterWebviewPlugin = new FlutterWebviewPlugin();
  // alternatively you can define variable as var js = "YOUR_SCRIPT"; and use it inside evalJavascript

  @override
  void initState(){
    super.initState();
    flutterWebviewPlugin.evalJavascript("alert('Hi, I just executed')"); // executed
    flutterWebviewPlugin.evalJavascript("document.getElementById('header04-2j').style.display = 'none';"); // not executed
  }

  @override
  void dispose() {
    flutterWebviewPlugin.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return WebviewScaffold(
      url: 'https://www.esdatech.com/',
      hidden: true,
      appBar: AppBar(title: Text("ESDA")),
    );
  }
}