import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';

class BantuanScreen extends StatefulWidget {
  static const id = 'BantuanScreen';
  @override
  _BantuanScreenState createState() => _BantuanScreenState();
}

class _BantuanScreenState extends State<BantuanScreen> {
  bool isCalled = false;
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: FutureBuilder(
        future: Future.delayed(Duration(seconds: 1)).then(
          (r) => Future.value('data'),
        ),
        builder: (context, snapshot) {
          if (snapshot.hasData) {
            if (snapshot.connectionState == ConnectionState.done) {
              if (!isCalled) {
                isCalled = true;
                return WebView(
                  initialUrl: 'https://www.example-code.com',
                  javascriptMode: JavascriptMode.unrestricted,
                  onWebViewCreated: (controller) => LoadingDialog.show(context),
                  onPageFinished: (value) => LoadingDialog.hide(context),
                );
              }
            }
          }
          return Container();
        },
      ),
    );
  }
}