I have a pageview view and it works with sliding. But how do I integrate this back button as leading: Icon(backbutton), when navigating between forms in the pageview? Thanks

screen1.dart

```
import 'package:app/src/features/examples/components/body.dart';

class OnboardingExampleFlowPage extends StatelessWidget {
  static String routeName = "/onboarding_example_flow";

  const OnboardingExampleFlowPage({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: false,
      extendBodyBehindAppBar: true,
      appBar: AppBar(
        elevation: 1,
        backgroundColor: AppColors.monochromeWhite,
        title: Text(context.l10n.buttonBack),
        leading: IconButton(
          icon: const Icon(Icons.arrow_back),
          onPressed: () {},
        ),
      ),
      body: const Body(),
    );
  }
}

```

Body has pageview:

body.dart

```

class _BodyState extends State<Body> {
  int currentPage = 0;
  final PageController controller = PageController();
  @override
  void dispose() {
    super.dispose();
    controller.dispose();
  }

  @override
  Widget build(BuildContext context) {
    final List<Widget> formPages = <Widget>[
      ExampleContent01(controller: controller),
      ExampleContent02(controller: controller),
      ExampleContent03(controller: controller),
      ExampleContent04(controller: controller),
    ];
    return SafeArea(
      child: SizedBox(
        child: Column(
          children: [
            const SizedBox(height: 6),
            AppStepper(
              currentPage: currentPage,
              length: formPages.length,
              noSkip: true,
            ),
            Expanded(
              child: Padding(
                padding: EdgeInsets.symmetric(
                  horizontal: getProportionateScreenWidth(20),
                ),
                child: PageView(
                  controller: controller,
                  onPageChanged: (value) => setState(() => currentPage = value),
                  children: formPages,
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

```

These forms: There are contents in ExampleScreens, but I did not add their code because there are AppBar and Pageview in the code I added.

here is view: [![enter image description here](https://i.stack.imgur.com/jwyMh.png)](https://i.stack.imgur.com/jwyMh.png) want to be able to go back inside pageview.

Thanks a lot!