I want to identify which scanner is used for

Hi guys, I'm liking the package so far but I'm struggling with something. While using a CS6080 scanner as an HID keyboard via BT, I'm scanning a CODE128 barcode:

The barcode should decode to: 3BE9604F-9E76-42F8-A584-288AD1B7D087

When I scan this barcode on a notes app on both android and iOS it scans the whole barcode correct, so the scanner is working as expected. But on my flutter android app it decodes to: #Be960$f-(e76-4@f8_a584-28*Ad!b&d087
I've tried debugging the package a little and it looks like it might be because of a shift key or something like that.
On iOS however it seems to be working perfectly.

Can you guys possibly help me out? Feel free to reach out so I can help further.

Hi

How to hide keyboard after barcode scan?

Does disabled sticky keys in Linux affect the plugin functionality ?

The barcode sometimes returns truncated from the beginning of the line, despite the fact that this does not always happen, but sometimes, out of 5 scans, only 2 are successful

Hello
I'm glad to find your open source project
However, during the testing process,
The bar code is missing and cannot be identified completely

When i trying on the ios 12 and 12.5 thats scanning correctly but when i trying on higher than 14 version thats scanning wrong.
Example: My barcode value is "102553" but the output sometimes like "1022553","1025553". They will giving 5 true data each 20-30 scanning. This problem not only for this package i got the that problem on the 'TextField' and 'TextFormField' widgets.

For the android, thats working absolutely correct, no error, no wrong scanning, problem only on ios14 and higher.

My Scanner: Opticon-2006
Note: I try with diffrent scanners but there is no solve.

I am using trying to run your example in my external handheld device, It is not even populating anything

Really nice idea to look at the input speed ;)

But the plugin only works fine for me until I use a text input that get's the focus and the on screen keyboard opens.
After that moment the barcode listener does not recognize the codes any more.

For reprodution I added
Form(key: GlobalKey(), child: TextField(autofocus: false))
to the childs of the BarcodeKeyboardListener.
Firstly the listener reacts on new codes. After the focus has been set to the input field, the barcode listener does not work any more.

When I want to use textField widget's onEditingComplete callback , using Enter, barcode scanner is working.But I want to dispose it.How can I do it?

I have a problem with this library, since although it manages to capture the barcodes, most of the attempts, the onBarcodeScanned function returns me an empty barcode, I have tried different EAN 13 barcodes but the result is inconsistent. I also tried to change the bufferDuration property but it doesn't seem to work either.
I'm working on a NQ1000-II android tablet with integrated barcode scanner.

Code:

    BarcodeKeyboardListener(
    bufferDuration: const Duration(milliseconds: 200),
    onBarcodeScanned: (barcode) {
    if (kDebugMode) {print(barcode);}
      if(barcode.isNotEmpty) {
        searchBarcode(barcode);
      } else{
//restart listener??
        Get.snackbar(
            "Not found",
            "Please restart app",
            icon: const Icon(Icons.error, color: Colors.black),
            snackPosition: SnackPosition.BOTTOM,
            duration: const Duration(seconds: 2)
        );
      }
    }, child: const SizedBox(
    width: double.infinity,
    height: 1),),

How can I restart the listener into the app if i get empty?

Thanks for this wonderful package, however when I tried to work with Flutter Desktop, it doesn't provide any bar code as response. It's empty. Let me know if there's any fixes.

Thanks

Is there a way to get barcode type?

First, very awesome library.
Im using it on a Android device with an external Barcode scanner.
Every time I scan something, im getting this error
Exception caught by services library ══════════════════════════════════ Attempted to send a key down event when no keys are in keysPressed. This state can occur if the key event being sent doesn't properly set its modifier flags. This was the event: RawKeyDownEvent#82bce(logicalKey: LogicalKeyboardKey#00104(keyId: "0x100000104", keyLabel: "Caps Lock", debugName: "Caps Lock"), physicalKey: PhysicalKeyboardKey#70039(usbHidUsage: "0x00070039", debugName: "Caps Lock"), repeat: false) and its data: RawKeyEventDataAndroid#d1f09(flags: 8, codePoint: 0, plainCodePoint: 0, keyCode: 115, scanCode: 58, metaState: 0) 'package:flutter/src/services/raw_keyboard.dart': package:flutter/…/services/raw_keyboard.dart:1 Failed assertion: line 688 pos 7: 'event is! RawKeyDownEvent || _keysPressed.isNotEmpty'

Any idea what the problem could be? Is it a problem of the library or off the scanner?
Im working on Flutter version 3.0.3

OS: Android

If I create a QR code with text MIK.SUZ.SKO.0140.0001, it returns wrong characters ( > instead of . char ). It probably thinks that the SHIFT key is still pressed. For now, I solved the issue by using plainCodePoint instead of codePoint property on RayKeyboardAndroid object and calling uppercase on scanned code.

I don't know how this should be handled, if I use the scanner when focused on some input, it writes correct code.

1. Scan the barcode
2. Its scans but opening keyboard

Platform - Android

I use multi barcode scanners, so I want to know barcode scanned by what device.
So how I get the device info.
Thank you.

App works great!

We would like to disable the soft keyboard from appearing when we are in a 'scanning' screen using the package to capture barcodes. Can we disable the soft keyboard from appearing within the package when a scan occurs?

Thanks for your time.

I'm having trouble with my Flutter app's barcode scanning feature on a Zebra MC3300 scanner. The BarcodeScannerField widget only works properly after I close and reopen the app. The first time I use the scanner, the widget doesn't get called at all. But when I restart the app, it magically starts working. Weirdly, this issue doesn't happen on a CipherLabs scanner.

https://stackoverflow.com/questions/76479000/flutter-app-only-works-properly-after-close-and-reopening

Hi there,

I'm using a android device which needs to connect an external barcode scanner, the scanner is an scanner box connect to the android PAD, just like the device in supermarket cashier machine computer. tried a long time, but still not work, I wonder if there's special settings need to be done in the scanner side ?

Actually when I tried in emulator, and input characters & enter key in the computer keyboard rapidly, it seems work.

Thanks a lot !

Hello,

I tried to use this package for the Keyence device. My app runs at Keyence, but I can't detect scan triggers to use data with your example.
Your idea is exactly what I need, scanning without focusing on TextBox and without a mobile keyboard, just to listen to triggers from the device.
Do you have any idea why this is not working?
Thank you!

I Want to see the values of barcode immediately on toast message.
But when I use this pack during setting keyboard for Korean,
the value doesn't have korean charaters

ex) value of barcode : 100Barcode-123123

when I scan in Eng -> 100Barcode-123123
but in Korean -> 100-123123

so I inspected the package.

I expect that when I use in iOS , the values return keylabel types.
and keyLabel is defined in doc

'it will be missing special processing for Unicode strings for combining characters and other special characters, and the effects of modifiers.'.

so I don't know what i have to do next.
I need your help guys

i wrap first screen with barcode listener, but when i navigate to second screen barcode listener is also listening there.

I have a strange problem, in some Windows systems, the complete barcode cannot always be scanned, and the results in release mode and debug mode are different.
My code is this
BarcodeKeyboardListener( bufferDuration: const Duration(milliseconds: 500), useKeyDownEvent: true, onBarcodeScanned: (barcode) { debugPrint(barcode); if (barcode.length == 12) { barcode = "0" + barcode; } controller.barcode(barcode: barcode); }, child: barcodeList(), )
i have 3 barcode

0755441231925
20147426
3700408421526

in debug mode result

in release mode result

everythings works fine but i want to use only listener without putting widget and how do you listen if usb is connected?

Can I simulate scan without hardware? If yes? so how it do?

i have zebra android device it has own button to scan barcode. but when i try to scan barcode onBarcodeScanned method does not trigger. what i am doing wrong ?

I always get the barcode in onBarcodeScanned Event , is that wrong bufferDuration settings? thanks

I have screen with TextEdit.
When enter screen and scan, plugin gives proper barcode on method - is OK
When enter TextEdit and scan, plugin put barcode to TextEdit- is OK
When leave TextEdit (no focus) and scan, plugin returns NULL

Hey, thanks for this package! I'm scanning 2D barcodes in a variety of formats, QR Codes and Data Matrix (doesn't seem to work in my tests with Aztec format but that's another issue).

I'm generating 2D barcodes with name, age, and email strings. While on the Flutter stable channel, the results were returned wrong nearly every time. But after switching to the Flutter Beta channel the results are correct except for the email string. Specifically the @ symbol is returned as "2".

If I add a barcode with the email [email protected], the plugin returns me2gmail.com every time. I don't know much about this plugin yet, but will see if I can figure it out.

For reference, I'm using a Netum NSL5S USB scanner on a Mac. The scanner works perfectly every time while in a text editing application.

Flutter (Channel beta, 2.9.0-0.1.pre, on macOS 11.2 20D64 darwin-x64, locale en-US)

Barcode listener doesn't emit event on both desktop and web

values of scanned barcodes and qr codes are all in lower case but when I don't use the package and only used a TextFormField the value is correct, i think it can't detect the if the keyevent has a shift key pressed with other character

(sorry for my bad english 😅)

Hi, Thanks for this library.
In my case, green border appears after scanning the barcode.
Is there any way to remove this?

Hi,

I have a bluetooth barcode scanner.
This package can be useful for me?

Scanning QR codes on android is returning the barcodes value, but only in lowercase, I've had a little play but cant seem to find a fix, any ideas?

Hi, first of all I would like to congratulate you for this useful package. That said, I would like to ask if you have the intention of to migrate this package to null safety

Hi!
Thank you for create this plugin.
I got an empty string after scan barcode.
Is there any way to solve this problem?

Is it possible to have the widget gain focus, or to defocus any other widget(s) once the barcode has been determined?

I have a build that has some input widgets above a visibility widgets and the barcode scanner as used in the example and it works great (windows version) if you click off the other widgets that take input.

However, if focus is in one of those other input fields the also get the barcode as keypresses.

I have tried adding in a 'WidgetsBinding.instance.focusManager.primaryFocus?.unfocus();' call just above the barcode scanner, but it doesn't work.

Any one have a suggestion in how to do this?

The https:// is changed to https;// when scanned

I have made app on macOS and it works as it should be, the scan is perfect, yet once I tried it on windows special characters are not working