ERR_UNKNOWN_URL_SCHEME : Error when opening other apps.

[TykanN]

When I click some button opening an apps(like Payment app, SNS app...) inside InAppWebView, page shows ERR_UNKNOWN_URL_SCHEME.
I want to open an app or search an app at store if not installed.
I use plugin which is the latest committed version.

[bayramaliunuvar]

shouldOverrideUrlLoading metodunu kullanmalısın.
Örneğin:
`
InAppWebView(
shouldOverrideUrlLoading:
(controller, navigationAction) async {
var uri = navigationAction.request.url;

                    if (uri.scheme.startsWith("tel")) {
                      print(uri.path);
                      if (await canLaunch(uri.path)) {
                        await launch(url);
                      }
                      return NavigationActionPolicy.CANCEL;
                    }

                    return NavigationActionPolicy.ALLOW;
                  })

`

[zhuwei]

@bayramaliunuvar Not working，Still showing ‘ERR_UNKNOWN_URL_SCHEME’，for example：

shouldOverrideUrlLoading: (controller, navigationAction) async {
	var uri = navigationAction.request.url!;

	var s = uri.toString().toLowerCase();
	if (s.startsWith('intent:')) {
	  await launchUrl(uri, mode: LaunchMode.externalApplication);
	  return NavigationActionPolicy.CANCEL;
	} else if (s.startsWith('market:')) {
	  if (await canLaunchUrl(uri)) {
		await launchUrl(uri, mode: LaunchMode.externalApplication);
		return NavigationActionPolicy.CANCEL;
	  }
	}

	return NavigationActionPolicy.ALLOW;
}

[yuvisingh01]

@bayramaliunuvar Not working，Still showing ‘ERR_UNKNOWN_URL_SCHEME’，for example：

shouldOverrideUrlLoading: (controller, navigationAction) async {
	var uri = navigationAction.request.url!;

	var s = uri.toString().toLowerCase();
	if (s.startsWith('intent:')) {
	  await launchUrl(uri, mode: LaunchMode.externalApplication);
	  return NavigationActionPolicy.CANCEL;
	} else if (s.startsWith('market:')) {
	  if (await canLaunchUrl(uri)) {
		await launchUrl(uri, mode: LaunchMode.externalApplication);
		return NavigationActionPolicy.CANCEL;
	  }
	}

	return NavigationActionPolicy.ALLOW;
}

were you able to solve this??
as I am also getting the same error, while redirecting to payments app

I am trying it in this way
shouldOverrideUrlLoading: (controller, navigationAction) async {
// Future.delayed(const Duration(seconds: 1), () {
final uri = navigationAction.request.url;
if (uri != null) {
if (uri.scheme == 'intent') {
// Future.delayed(const Duration(seconds: 1), () {
// launchUrl(uri);
// });
print('within intent');

                return NavigationActionPolicy.CANCEL;
              } else if (uri.scheme == 'paytmmp') {
                // Future.delayed(const Duration(seconds: 1), () {
                if (await canLaunchUrl(uri)) {
                  await launchUrl(uri,
                      mode: LaunchMode.externalApplication);
                } else {
                  print('Could not launch ${uri.toString()}');
                }
                // });
                return NavigationActionPolicy.CANCEL;
              } else if (uri.scheme == 'tez') {
                Future.delayed(const Duration(seconds: 1), () {
                  launchUrl(uri, mode: LaunchMode.externalApplication);
                });
                return NavigationActionPolicy.CANCEL;
              } else if (uri.scheme == 'phonepe') {
                Future.delayed(const Duration(seconds: 1), () {
                  launchUrl(uri, mode: LaunchMode.externalApplication);
                });
                return NavigationActionPolicy.CANCEL;
              } else if (uri.scheme == 'upi') {
                Future.delayed(const Duration(seconds: 1), () {
                  launchUrl(uri, mode: LaunchMode.externalApplication);
                });
                return NavigationActionPolicy.CANCEL;
              } else if (uri.scheme == 'gpay') {
                Future.delayed(const Duration(seconds: 1), () {
                  launchUrl(uri, mode: LaunchMode.externalApplication);
                });
                return NavigationActionPolicy.CANCEL;
              } else if (uri.scheme == 'truecallersdk') {
                Future.delayed(const Duration(seconds: 1), () {
                  launchUrl(uri, mode: LaunchMode.externalApplication);
                });
                return NavigationActionPolicy.CANCEL;
              } else {
                // Future.delayed(const Duration(seconds: 1), () {
                //   launchUrl(uri);
                // });
                print('else');
                return NavigationActionPolicy.ALLOW;
              }
            }
            print('outside');

            return NavigationActionPolicy.ALLOW;
            // });
          },