Back gesture in Flutter inAppWebView not working on Android

My inAppWebView recognises the Back and Forward gestures (swipe in from left/right edge) fine on iOS and automatically performs the goBack/goForward accordingly (no code added for that).

But on Android it simply does nothing – it does not react to swiping in from left/right edge at all.

Is there anything one needs to do / set up to make this work also on Android?

My structure is: SafeArea -> Scaffold -> Container -> Expanded -> Container -> InAppWebView

No explicit or custom Gesture Recognizers anywhere.

I tried to use the inAppWebView property "gestureRecognizers" - but without any effect. Whatever gesture recognizers I drop in there, the inAppWebView behaves exactly the same. So that property to me seems to do nothing at all.

android:windowSwipeToDismiss="true"

In AndroidManifest.xml add the following attribute to your application tag:

Code:

class MyInAppWebView extends StatefulWidget {
  @override
  _MyInAppWebViewState createState() => _MyInAppWebViewState();
}

class _MyInAppWebViewState extends State<MyInAppWebView> {
  late InAppWebViewController _webViewController;
  bool _canGoBack = false;

  @override
  Widget build(BuildContext context) {
    return WillPopScope(
      onWillPop: () async {
        if (_canGoBack) {
          _webViewController.goBack();
          return false;
        }
        return true;
      },
      child: Scaffold(
        appBar: AppBar(title: Text('InAppWebView')),
        body: InAppWebView(
          initialUrlRequest: URLRequest(url: Uri.parse('https://www.youtube.com')),
          onWebViewCreated: (controller) {
            _webViewController = controller;
          },
          onLoadStop: (controller, url) {
            setState(() {
              _canGoBack = true;
            });
          },
        ),
      ),
    );
  }
}