Description
What's happening?
I am using the library (version - 4.5.2) for barcode scanning but i have some issues. When i am scanning different products sometimes the barcode reader outputs a completely different barcode.
The problem is issued with both android and ios devices (most cases are with android). The types our camera supports are : ean-13,ean-8, code-128, as we intentionally havent applied all barcode types because the current version of the library contains a bug that results in incorrect barcodes being returned when all barcodes types are applied.
I installed the lates version of the library, but the problem still accurs.
We have also tried to store the user`s scan logs in a array and output the barcode which repeats the most, but this still doesnt solve the problem, as the output of the scanning becomes slower, which we dont want our users to experience that kind of behavior.
With the examples below you can see the problem:
The barcode 3600524127985 is read as 2123714
Reproduceable Code
const codeScanner: CodeScanner = {
/**
* Note: Do not add additional barcode types to this implementation.
* The current version of the library contains a bug that results in incorrect barcodes being returned, particularly on Android devices.
* This issue most frequently occurs when scanning multiple barcodes consecutively.
* Additionally, the expo-camera library exhibits the same bug.
*/
codeTypes: [
'ean-13',
'ean-8',
'code-128'
],
onCodeScanned: (codes) => {
console.log('code', codes[0].value!);
if (isScanning) {
let recogniezedBarcode = codes[0].value!;
if (codes[0].type === 'upc-a' && Platform.OS === 'android') {
recogniezedBarcode = 0 + recogniezedBarcode;
}
if (userContext.dailyScans >= userContext.dailyScanLimit) {
showPaywall();
return;
}
console.log("Scanning");
setIsScanning(false);
(async () => {
setIsLoadingProductData(true);
const data: any = await fetchProductData(recogniezedBarcode);
setIsLoadingProductData(false);
if (data) {
Haptics.notificationAsync(Haptics.NotificationFeedbackType.Success);
// Save scanned product
const formatedData = formatProductData(data);
// console.log('formated data', formatedData);
const {
barcode,
name,
brand,
image,
grade,
gradeColor,
quantity_unit,
ingredients,
isNutriValuesEmpty,
isCosmetic,
status, // For cosmetics
} = formatedData;
if (isNutriValuesEmpty === true) {
setIsNutritionDataEmpty(true)
}
if (!name && !brand) {
setScannedProductData({
isSheetShown: true,
isCosmetic: false,
barcode: recogniezedBarcode,
barcodeType: '',
name: '',
brand: '',
image: '',
grade: '',
gradeColor: '',
quantityUnit: '',
ingredients: [],
});
setIngredientsData(undefined);
setIsProductFound(false);
return;
}
setIsProductFound(true);
if (!image) {
try {
const productImageResponse: any = await fetchData(`${baseAPI}/products/image?barcode=${codes[0]?.value}&barcodeType=${codes[0]?.type}`);
if (productImageResponse.image) {
setScannedProductData({
isSheetShown: true,
isCosmetic: isCosmetic ? true : false,
barcode: barcode,
barcodeType: codes[0]?.type,
name: name,
brand: brand,
image: productImageResponse.image,
grade: grade,
gradeColor: gradeColor,
quantityUnit: quantity_unit,
ingredients: ingredients
});
}
} catch (error) {
setIsScanning(true);
}
} else {
setScannedProductData({
isSheetShown: true,
isCosmetic: isCosmetic ? true : false,
barcode: barcode,
barcodeType: codes[0]?.type,
name: name,
brand: brand,
image: image,
grade: grade,
gradeColor: gradeColor,
quantityUnit: quantity_unit,
ingredients: ingredients
});
}
console.log('nutri', data.nutritionAnalysis);
setIngredientsData(data.nutritionAnalysis);
mutate(formatedData);
} else if (!data) {
console.log('in else');
setScannedProductData({
isSheetShown: true,
isCosmetic: false,
barcode: recogniezedBarcode,
barcodeType: codes[0].type,
name: '',
brand: '',
image: '',
grade: '',
gradeColor: '',
quantityUnit: '',
ingredients: []
});
setIngredientsData(undefined);
setIsProductFound(false);
}
})()
}
}
}
const device: any = useCameraDevice(cameraState);
const [cameraDevice, setCameraDevice] = useState<CameraDevice>(device);Relevant log output
Camera Device
did not any logsDevice
All kinds of IOS and Samsung devices
VisionCamera Version
4.5.2
Can you reproduce this issue in the VisionCamera Example app?
Yes, I can reproduce the same issue in the Example app here
Additional information
- I am using Expo
- I have enabled Frame Processors (react-native-worklets-core)
- I have read the Troubleshooting Guide
- I agree to follow this project's Code of Conduct
- I searched for similar issues in this repository and found none.