2,576 questions
5
votes
1
answer
110
views
.NET MAUI 9 ZXing.Net.Maui doesn’t scan 26-character Code128 barcodes (not detected or decoded incorrectly)
I’m using ZXing.Net.Maui in a .NET MAUI 9 app to scan barcodes.
QR codes work perfectly, but Code128 barcodes with 26 characters are either:
not recognized at all, or
recognized incorrectly (wrong/...
- 51
1
vote
0
answers
50
views
Unable to read a specific QR code in Java with ZXing or BoofCV
Title
Java: Unable to decode a specific QR code with ZXing or BoofCV
Image
myQR
Body
I’m trying to decode a tricky QR code in Java, but neither ZXing nor BoofCV can read it correctly.
Minimal ...
0
votes
0
answers
157
views
iOS 26: Camera video works but QR/barcode detection (zxing, html5-qrcode) silently fails in all browsers
My team has developed a web application that uses the device's camera to decode QR codes and barcodes from labels. After the recent iOS 26 update, our application has completely stopped working on ...
0
votes
0
answers
48
views
ZXing 3.1.0-beta2 Visual Studio 2022 Xamarin.Android cause app to crash in Release Mode
I'm building a Xamarin.Android application to scan barcode
I'm using the Nuget Zxing 3.1.0-beta2
In Debug Mode everything works as expected
But if I run on Release Mode the App dissapear in BackGround ...
0
votes
0
answers
52
views
Incorrect Barcode position(co-ordinates) in PDF being returned using Zxing / Apache PDFBox Java libraries
The requirement is to get the list of barcodes and its associated type , data ,etc. along with its positioning in a PDF.I am using open-source Apache PDFBox and Zxing Java based libraries for the ...
- 369
1
vote
1
answer
90
views
Why can I not encode ScalaPB `toProtoString` into a QR code and decode it again?
Background:
I have a protobuf object called RegistrationInfo, defined as such:
message RegistrationInfo {
string serverID = 1;
string serverIP = 2;
string alias = 3;
string rootCA = 4;
}
In ...
- 923
0
votes
0
answers
25
views
Is it possible to access proximity sensors on phones in order to automatically switch cameras while scanning a QR-code on a webapp?
I have a ZXing scanner in my Angular project which is set to scan QR-codes. My problem is that I must make it so that the scanner automatically switches to the correct camera based off the distance ...
0
votes
0
answers
79
views
QR scanner on angular project not choosing the right camera
I've got this QR scanner on my component and it works, but has a problem: in some devices (mostly devices with 3 or more cameras like iPhone Pro) it doesn't get the camera for short distances (the one ...
0
votes
0
answers
370
views
Java Zxing Datamatrix Code Not Scanning Datamatrixes
The following data matrix is being read well using Barcode Scanner. However, the same is not being read by zxing java library.
I have some image transformation code commented. Even transforming the ...
- 21
0
votes
0
answers
288
views
The ngx-scanner is not working in devices
I'm trying to use ngx-scanner (https://github.com/zxing-js/ngx-scanner) but after following the instructions it does not work. In PC is working but in other devices no (phone, tablet...). I have ...
- 405
0
votes
1
answer
79
views
JsBarcode is not a function, Uncaught (in promise) Object, require is not defined, ZXing is not defined
I can't get this javascript code to work right, it keeps giving me errors.
This is my code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"&...
0
votes
1
answer
189
views
Xamarin Android to .NET 8 Upgrade: ZXing.Net.Mobile QR Code Scanning Issue
I've recently upgraded my Xamarin Android project to .NET 8 (net8-android). My project still uses MainActivity and has not yet been upgraded to MAUI. While most of the features work fine, the QR code ...
- 88
1
vote
0
answers
105
views
Data Matrix Scan takes too long
I'm currently working on a Java application that needs to scan Data Matrix QR-Codes, specifically to extract and display XML data in a text box. The QR-Codes I'm dealing with contain BMP (German ...
- 11
-1
votes
1
answer
1k
views
Barcode reader in C# on .NET 8 using ZXing [closed]
I am trying to write a C# class to read a barcode from a bmp file using ZXing.Net version 0.16.9.
This is the old way:
BarcodeReader br = new BarcodeReader();
string text = br.Decode(bmpFile).ToString(...
- 1
-1
votes
1
answer
121
views
Opening new page after barcode detection with zxing:CameraBarcodeReaderView throws COMException
I have a plain barcode reader app that tries to navigate to a new page with the search result, but I'm getting this weird COMException that I simply don't understand.
MainPage.xaml:
<ContentPage ...
- 16.8k
0
votes
0
answers
169
views
Unable to read QR code using ZXing in Kotlin on an Andorid 12 tablet
I'm new to Kotlin and I need to make an application that reads QR codes, I did this using the following code:
import androidx.camera.core.ImageAnalysis
import androidx.camera.core.ImageProxy
import ...
- 35
0
votes
1
answer
9k
views
ZXing for MAUI (MobileBarcodeScanner)
I have a project that I have in xamarin and I want to transfer it to MAUI but I have encountered a problem and that is that ZXing.Mobile is not for MAUI and I have downloaded ZXing.Net.Maui.
The ...
- 359
0
votes
1
answer
2k
views
How to integrate ZXing.Net.Maui into a Partially Converted Xamarin.Android to .NET MAUI Project for QR/Barcode Scanning?
I am in the process of converting a Xamarin.Android project to .NET MAUI. The project is a lightweight wrapper around a WebView, with the UI primarily being handled by a separate project written in ...
-4
votes
1
answer
1k
views
How to improve image quality before reading barcode [closed]
I am using zxing-cpp library for reading barcode from image.
import cv2
import zxingcpp
img = cv2.imread('test.jpg')
results = zxingcpp.read_barcodes(img)
for result in results:
print('Found ...
- 477
3
votes
1
answer
2k
views
ZXing, Android, JetPack Compose - Draw Bounding Box Around QR Code
I am building a QR code scanner using Jetpack Compose in Android. The scanning part and reading the bit values in the QR code work great and as expected. However, as a part of my prototype, I want to ...
- 462
0
votes
1
answer
128
views
Zxing core:3.5.2 decode error of encoded barcode -> NotFoundException
I'm try decode a barcode encoded by myself, but i cant.
Encoded barcode reading another barcode scanner app.
I try bitmatrix and bitmap to convert BinaryBitmap but always returning null result
Yes, ...
- 300
1
vote
0
answers
164
views
How Can I Access Android Phone Camera With gozxing
I have been trying to develop an application to read barcodes and QR codes for a while and I found gozxing but I could not find how to access the camera.
I try to apply the scanning logic to this code ...
- 49
2
votes
1
answer
2k
views
How to create a module-info class file and add it to the jar?
I am Working on a javafx project where i am in need to generate module-info.class file myself. So, Iam wondering how to do it properly and make it work with maven.
Iam facing this issue with a QRCode ...
- 161
3
votes
5
answers
3k
views
How can I generate circular QR codes?
How can I generate circular QR codes?
I would like to generate a QR code that is drawn with circles instead of squares. I currently have this code:
public Bitmap GenerateQR(string text)
{
...
- 117
3
votes
1
answer
3k
views
What to do now ''com.google.zxing.integration.android.IntentIntegrator' is deprecated' in Android Java"
I've been using the 'com.google.zxing.integration.android.IntentIntegrator' in my Android Java project like this:
IntentIntegrator integrator = new IntentIntegrator(QrCodeActivity.this);
How can I ...
