2,528 questions
2
votes
1
answer
114
views
Flutter Mobile Scanner shows black screen after scanning barcode
Flutter Mobile Scanner shows black screen after scanning barcode
I am using the mobile_scanner package in Flutter to scan barcodes. The scanner works correctly for detecting the barcode, but after ...
2
votes
0
answers
69
views
Scan one barcode on button press
I am trying to adapt the Vision Framework based scanner proposed by Luca Palmese.
This scanner is scanning all barcodes detected in the camera field and optionally you can stop scanning after the ...
- 164
0
votes
0
answers
69
views
expo-camera cameraView not scanning barcodes for ios
Having some users of an expo application on iPhones unable to use scanning. Unfortunately I am unable to reproduce the issue locally so I am unsure how to go about debugging this.
<CameraView ...
- 1,662
Tooling
0
votes
2
replies
94
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 ...
- 123
0
votes
1
answer
513
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 ...
1
vote
0
answers
73
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
254
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 ...
- 382
0
votes
1
answer
325
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
75
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
89
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 = ...
- 11
0
votes
2
answers
317
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 ...
- 831
0
votes
0
answers
307
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,...
- 183
3
votes
0
answers
212
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 ...
- 161
2
votes
1
answer
182
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
...
- 162
1
vote
0
answers
185
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. ...
- 33