Do not close the scanning activity after every scan. about flutter_barcode_scanner HOT 27 CLOSED

@irperera
I did a quick workaround

var barcode = await _searchByBarcode();
while (barcode.isNotEmpty) {
    barcode = await _searchByBarcode();
});

Future<String> _searchByBarcode() async {
String barcodeScanRes;
try {
      barcodeScanRes = await FlutterBarcodeScanner.scanBarcode("#ff6666", "Anuluj", true);
} on PlatformException {
        barcodeScanRes = 'Failed to get platform version.';
      }
    return barcodeScanRes;
  }

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@afornes thanks for details, I'm looking into it and will update you shortly on this.

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plugin 0.1.3 is uploaded with issue fix.

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Hi.
Is there a chance to show dialog on every barcode found with TextField for quantity? I'm trying to fire showDialog() inside getBarcodeStreamReceiver("#ff6666", "Cancel", true).listen((barcode) {} but it's openning only after I click Cancel, not during scanning.

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Thanks for using the plugin.
That's a good idea to have continuous scanning. First will have to go through that if it is possible to make continuous streaming from native to dart. I'll update you on this soon.

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@AmolGangadhare Why not just handle the scanning through a dart camera widget of some sort, that way all the camera view can be added directly in the dart code?

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hi, the plugin has been updated with continuous scan support. Please try it out and provide your feedback. Thanks

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I've tried continuous scan on Android. It opens the viewer but never finds any barcode. I've tried it on a OnePlus 5T phone

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@afornes thanks for using the plugin. It scans continuously whenever a barcode is detected. Is there any error logs?

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@AmolGangadhare There are no errors. I've set breakpoints and also prints inside the "listen" callback and they are never triggered

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sounds weird, give me some time to figure it out. One more thing, is that specific to a QR code or barcode? can you provide a sample you are referring(if possible)?

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I'm trying to scan an EAN13 barcode. This is the code I'm trying to scan: 8434506077280
Generated with this tool.

I've tried using other libraries and it works fine

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@afornes it was a threading issue in the plugin bridge. unfortunately, I missed this. I've made a fix to this. Will test it thoroughly, and upload the latest version to the pub shortly. Thanks for helping to improve this plugin.

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can someone point me in the right direction? I need to know how to use the continuous scan.

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Hi.
Is there a chance to show dialog on every barcode found with TextField for quantity? I'm trying to fire showDialog() inside getBarcodeStreamReceiver("#ff6666", "Cancel", true).listen((barcode) {} but it's openning only after I click Cancel, not during scanning.

Sorry for the late reply.

Showing an alert dialog in getBarcodeStreamReceiver won't work well.
This has to be done in plugin code.

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For continuous scan, there is a method getBarcodeStreamReceiver. It will return continuous barcode stream until user press cancel button.

FlutterBarcodeScanner.getBarcodeStreamReceiver("#ff6666", "Cancel", false)
         .listen((barcode) { 
         /// barcode to be used
         });

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@AmolGangadhare
I can't use getBarcodeStreamReceiver in my case, because I am asking a user for an amount of read products.

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Ok.
After the platform views become stable we can embed the barcode scanning screen in the app itself.

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@troncomputers
I got the scan to work,

Future<void> startBarcodeScanStream() async {
    FlutterBarcodeScanner.getBarcodeStreamReceiver("#ed0001", "Done", false)
        .listen((barcode) {
      _scanBarcode = barcode;
      setState(() {
        codes.add(_scanBarcode);
      });
    });
  }

how can I prompt the user that they are actually scanning.

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@irperera
That is why I used FlutterBarcodeScanner.scanBarcode() in a while loop. There is no "found barcode" event In getBarcodeStreamReceiver.

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@troncomputers

thanks, I need continuous scanning, can you show me how to do that.

thanks again.

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I did show you and you gave me "thumbs up" 🤔
Continuous scanning in this thread

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thanks I'll try it

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@troncomputers
where in the code you put the dialog?

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@irperera
I have a button to initialize scanning

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This feature has been included in the plugin so closing this.

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Hello I’m using your plugin and it works very well but there is one thing missing that’s is the auto closing it mean what if I want to wait for the result maybe for 10 sec and if it’s not found then I want to close the scanner but I’m unable to close it without pressing cancel button so can you fix that

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