Back button is not working properly with webview flutter - flutter

Question

I am building a flutter app which simply views website URL. but I press back instead of navigating back it exists the app. I searched for solutions but no solution helped me. or that code doesn't support with latest flutter...
Here is my code
import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
final String title;
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
#override
Widget build(BuildContext context) {
return WebView(
initialUrl: 'https://flutter.dev',
);
}
}

Answer 1

This is happening because you are not coming from any page.
This is how currently your structure is following...
main() ===> MyApp() ===> MyHomePage(title: 'Flutter Demo Home Page') ===> "your-web-vide-page".
so if you would like to work back button then there has to be any page from the page you are going to like...
Navigator.push(context, MaterialPageRoute(builder: (context) {
return //<=== your-page-here
},));

Answer 2

You need to handle this manually.
Create a webView Controller first:
final Completer<WebViewController _controller =
Completer<WebViewController ();
and then create actions in the appBar, and add buttons to handle back and forward actions.
so on back button you would call:
controller.goBack();
and forward:
controller.goForward();
to handle the back button on android device you need to wrap your scaffold with willpopscop and then handle the case inside onWillPop function.