updated example main.dart

example/lib/main.dart

 import 'dart:async';
-import 'dart:io';
+
 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:permission_handler/permission_handler.dart';
+
+// InAppLocalhostServer localhostServer = new InAppLocalhostServer();
 
 Future main() async {
   WidgetsFlutterBinding.ensureInitialized();
+//  await Permission.camera.request();
+//  await Permission.storage.request();
+  // await localhostServer.start();
   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> {
-  InAppWebViewController webView;
-  CookieManager _cookieManager = CookieManager.instance();
 
   @override
   void initState() {
@@ -30,46 +78,13 @@ class _MyAppState extends State<MyApp> {
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      home: Scaffold(
-        appBar: AppBar(
-          title: const Text('InAppWebView Example'),
-        ),
-        body: Container(
-            child: Column(children: <Widget>[
-          Expanded(
-              child: InAppWebView(
-            initialUrl: "https://github.com/",
-            initialOptions: InAppWebViewGroupOptions(
-              crossPlatform: InAppWebViewOptions(
-                debuggingEnabled: true
-              ),
-            ),
-            onWebViewCreated: (InAppWebViewController controller) {
-              webView = controller;
-            },
-            onLoadStart: (InAppWebViewController controller, String url) {},
-            onLoadStop: (InAppWebViewController controller, String url) async {
-
-            },
-          )),
-              Expanded(
-                  child: InAppWebView(
-                    initialUrl: "https://github.com/",
-                    initialOptions: InAppWebViewGroupOptions(
-                      crossPlatform: InAppWebViewOptions(
-                          debuggingEnabled: true
-                      ),
-                    ),
-                    onWebViewCreated: (InAppWebViewController controller) {
-                      webView = controller;
-                    },
-                    onLoadStart: (InAppWebViewController controller, String url) {},
-                    onLoadStop: (InAppWebViewController controller, String url) async {
-
-                    },
-                  ))
-        ])),
-      ),
+        initialRoute: '/',
+        routes: {
+          '/': (context) => InAppWebViewExampleScreen(),
+          '/InAppBrowser': (context) => InAppBrowserExampleScreen(),
+          '/ChromeSafariBrowser': (context) => ChromeSafariBrowserExampleScreen(),
+          '/HeadlessInAppWebView': (context) => HeadlessInAppWebViewExampleScreen(),
+        }
     );
   }
 }
\ No newline at end of file