2,534 questions
Tooling
0 votes
2 replies
43 views
Scan the Code128 barcode using phone/tablet camera
Working on a project to scan the barcode on stickers using phone or tablet camera Coding - Angular 11 I tried using Zxing-scanner, it scans well when barcode are big enough, but fails for barcode on ...
0 votes
1 answer
182 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
62 views
Expo-Camera not scanning barcodes on iphone models > 12. It works smoothly on iphone 12 and android
I am working on an expo app barcode scanner app using expo-camera for scanning. Scanning works smoothly on Android and iPhones models < 12 but on newer iphone it doesn't scan. The view is a bit far ...
1 vote
0 answers
142 views
Inaccurate & Unreliable Barcode Scanning on iOS Web App
I'm building a React/TypeScript web app (PWA-style) that includes a barcode scanner. The scanner uses the BarcodeDetector API if it's supported; otherwise, I fall back to @zxing/library. The issue: it ...
0 votes
1 answer
187 views
PhoneGap Barcode Scanner plugin not working after upgrading to Android 11 (Cordova / Ionic 4)
I'm developing a mobile app using Ionic 4 and was previously using the PhoneGap Barcode Scanner plugin from: https://github.com/phonegap/phonegap-plugin-barcodescanner The plugin worked perfectly on ...
0 votes
1 answer
56 views
Android Kotlin - permission launcher launches too quickly when there is no surface view yet
I can't start my scanner from registerForActivityResult. It seems to me that the launcher launches too quickly when there is no surface view yet. I have tried setting permissions by hand remove ...
1 vote
0 answers
62 views
In html5-qrcode while rendering, the camera preview is lagging inside the modal
useEffect(() => { if (isOpen && !isSaved) { let html5QrCode: Html5Qrcode | null = null; const startScanner = async () => { try { html5QrCode = ...
0 votes
2 answers
183 views
Reading Barcodes using a USB scanner without keyboard mode
I have been researching this for a while and it seems the industry standard is for QR/Barcode scanners to simply emulate a keyboard and type anything scanned in. There is a number of tricks like ...
0 votes
0 answers
152 views
QR Codes from WalletPasses App Not Recognized by Scanners (PKPass)
Hello and welcome everyone! We're currently using scanning devices at a fair to validate tickets.The tickets are distributed as .pkpass files and imported into various wallet apps such as Apple Wallet,...
3 votes
0 answers
182 views
Failed to generate cinterop for Google MLKit Barcode Scanner on iOS in Compose Multiplatform (using CocoaPods)
I'm working on a Compose Multiplatform app and I'm trying to integrate Google MLKit Barcode Scanner on the iOS side using CocoaPods. However, when building the project, I get this error: Failed to ...
2 votes
1 answer
153 views
How can I make maui camera recognize rotated barcode?
I'm making an application on .net MAUI and I added the camera on a page that read barcodes and print the code as a text. As I wrote here, it works: public partial class ScansionaProdotto : ContentPage ...
1 vote
0 answers
146 views
Expo camera cornerPoints not aligning with actual barcode/QR code edges
I'm building an app in React Native (using Expo) to scan barcodes and QR codes. Whenever a valid code appears in front of the camera, I want to place a small red dot on each corner of that code. ...
0 votes
1 answer
178 views
ML Kit Analyzer returns incorrect boundingBox coordinates in Landscape mode with LifecycleCameraController
I’m trying to implement a simple barcode scanner using ML Kit Analyzer together with LifecycleCameraController. The idea is to draw a bounding rectangle around a detected barcode directly on the ...
0 votes
0 answers
70 views
Barcode scanning in .NET iOS and .NET Android using Zxing
I have recently upgraded my application from Xamarin Native to .NET iOS and .NET Android. I wanted to implement barcode scanning in my application so I started using the Zxing.Mobile for both iOS and ...
0 votes
0 answers
105 views
Barcode reader - automatically scan - Powerapps
I'm working with the Barcode Reader control in a Canvas App using the "Automatically Scan" feature. Sometimes, the scanner registers the same QR code twice, leading to unintended duplicate ...