iosWebViewFix/example/lib/main.dart

import 'dart:async';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';

import 'package:flutter_inappwebview_example/chrome_safari_browser_example.screen.dart';
import 'package:flutter_inappwebview_example/headless_in_app_webview.screen.dart';
import 'package:flutter_inappwebview_example/in_app_webiew_example.screen.dart';
import 'package:flutter_inappwebview_example/in_app_browser_example.screen.dart';
// import 'package:path_provider/path_provider.dart';
// import 'package:permission_handler/permission_handler.dart';

// InAppLocalhostServer localhostServer = new InAppLocalhostServer();

Future main() async {
  WidgetsFlutterBinding.ensureInitialized();
  // await Permission.camera.request();
  // await Permission.microphone.request();
  // await Permission.storage.request();

  WebView.debugLogging = false;

  if (defaultTargetPlatform == TargetPlatform.android) {
    await InAppWebViewController.setWebContentsDebuggingEnabled(true);

    var swAvailable = await WebViewFeature.isFeatureSupported(
        WebViewFeature.SERVICE_WORKER_BASIC_USAGE);
    var swInterceptAvailable = await WebViewFeature.isFeatureSupported(
        WebViewFeature.SERVICE_WORKER_SHOULD_INTERCEPT_REQUEST);

    if (swAvailable && swInterceptAvailable) {
      ServiceWorkerController serviceWorkerController =
          ServiceWorkerController.instance();

      await serviceWorkerController.setServiceWorkerClient(ServiceWorkerClient(
        shouldInterceptRequest: (request) async {
          print(request);
          return null;
        },
      ));
    }

    // var proxyAvailable = await WebViewFeature.isFeatureSupported(
    //     WebViewFeature.PROXY_OVERRIDE);
    // if (proxyAvailable) {
    //   ProxyController proxyController = ProxyController.instance();
    //   await proxyController.clearProxyOverride();
    //   await proxyController.setProxyOverride(settings: ProxySettings(
    //     proxyRules: [ProxyRule(url: "https://192.168.1.102:4433")],
    //   ));
    // }
  }

  runApp(MyApp());
}

Drawer myDrawer({required BuildContext context}) {
  return Drawer(
    child: ListView(
      padding: EdgeInsets.zero,
      children: <Widget>[
        DrawerHeader(
          child: Text('flutter_inappbrowser example'),
          decoration: BoxDecoration(
            color: Colors.blue,
          ),
        ),
        ListTile(
          title: Text('InAppBrowser'),
          onTap: () {
            Navigator.pushReplacementNamed(context, '/InAppBrowser');
          },
        ),
        ListTile(
          title: Text('ChromeSafariBrowser'),
          onTap: () {
            Navigator.pushReplacementNamed(context, '/ChromeSafariBrowser');
          },
        ),
        ListTile(
          title: Text('InAppWebView'),
          onTap: () {
            Navigator.pushReplacementNamed(context, '/');
          },
        ),
        ListTile(
          title: Text('HeadlessInAppWebView'),
          onTap: () {
            Navigator.pushReplacementNamed(context, '/HeadlessInAppWebView');
          },
        ),
      ],
    ),
  );
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => new _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  void initState() {
    super.initState();
  }

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(initialRoute: '/', routes: {
      '/': (context) => InAppWebViewExampleScreen(),
      '/InAppBrowser': (context) => InAppBrowserExampleScreen(),
      '/ChromeSafariBrowser': (context) => ChromeSafariBrowserExampleScreen(),
      '/HeadlessInAppWebView': (context) => HeadlessInAppWebViewExampleScreen(),
    });
  }
}