barcode flutter scan doesn't get result mobile app - flutter

Question

I try to read barcode using flutter mobile, I using this function
scanbarcode() async {
await FlutterBarcodeScanner.scanBarcode(
'#000000', 'Cancel', true, ScanMode.BARCODE)
.then((value) => setState(() => text = value));
}
it open camera and show scan line but it doesn't get the result it text, and when I press back or cancel it get me -1 in txt.
and that when I call
onPressed: () async {
await scanbarcode();
}
thanks

Answer 1

I know that on emultated phones bar and Qr code scanner do not work well so try to run your app on a real device. Otherwise I cannot help you more with your problem but I implemented a bar/QR code scanner few day ago with the qr_code_scanner: ^1.0.0 package and it worked for me.
Hier is the link of the package: https://pub.dev/packages/qr_code_scanner
and here the code exemple:
#override
Widget build(BuildContext context) {
final qrKey = GlobalKey(debugLabel: 'QR');
QRViewController? controller;
void onQRViewCreated(QRViewController controllerAt) {
controller = controllerAt;
controllerAt.pauseCamera();
controller!.resumeCamera();
controller!.scannedDataStream.listen((barcode) {
// Hier you get the barcode or qr code if it's scanned
});
}
Widget _getBarQrScannerWidget() {
return QRView(
key: qrKey,
onQRViewCreated: onQRViewCreated,
overlay: QrScannerOverlayShape(
cutOutSize: MediaQuery.of(context).size.width * 0.75,
borderWidth: 10,
borderLength: 15,
borderRadius: 8,
),
);
}
return getBarQrScannerWidget()
}