Reload Flutter Web's Active Page

Programming
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1

I’m developing a web app using Flutter, and I’m having an issue with page reloading. Whenever I press the browser’s refresh button, the whole web app is reloaded, regardless of which page I’m currently on.

For example, if I have navigated through four pages, and I press the refresh button from the fourth page, the initial page is loaded and I have to manually navigate back to the fourth page.

Is there a way to reload the currently active page in Flutter?

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      home: HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Home Page'),
      ),
    );
  }
}
2

You can use the AutomaticKeepAliveClientMixin in Flutter to reload the currently active page. Here’s an example of how you can modify your code to achieve this:

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      home: HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> with AutomaticKeepAliveClientMixin {
  @override
  bool get wantKeepAlive => true;

  @override
  Widget build(BuildContext context) {
    super.build(context); // You need to call super.build(context) here.
    return Scaffold(
      appBar: AppBar(
        title: Text('Home Page'),
      ),
    );
  }
}

By adding AutomaticKeepAliveClientMixin to your State class and overriding wantKeepAlive to return true, you tell Flutter to keep the state of the widget alive even when the user navigates away from it. Then, you need to call super.build(context) in your build method to enable the mixin. This way, when the user presses the refresh button, only the currently active page will be reloaded.