QR Scan Fails for Photographed QR Images from Gallery

[developer-nesamani]

QR code scanning works as expected when the QR image is directly downloaded and scanned from the gallery — data points are detected correctly.

However, when I took a photo of the same QR code and tried scanning it from the gallery, it failed to detect any data.

We confirmed that the same photographed QR image can be scanned successfully using other QR scanner apps, so the issue appears to be specific to our plugin.

Working QR Scan Output:

    [Barcodes] Instance of 'BarcodeCapture'  
    [Barcodes barcodes] [Instance of 'Barcode']  
    [Barcodes Raw] {name: barcode, data: [{calendarEvent: null, contactInfo: null, corners: [{x: 599.0, y: 837.0}, {x: 1129.0, y: 834.0}, {x: 1123.0, y: 1349.0}, {x: 614.0, y: 1356.0}], displayValue: https://qrfy.io/bcuaAoJBq8, driverLicense: null, email: null, format: 256, geoPoint: null, phone: null, rawBytes: [...], rawValue: https://qrfy.io/bcuaAoJBq8, size: {width: 530.0, height: 522.0}, sms: null, type: 8, url: {title: , url: https://qrfy.io/bcuaAoJBq8}, wifi: null}], image: {bytes: null, width: 1728.0, height: 2304.0}}  
    
    [Barcodes image] null  
    
    [Barcodes Size] Size(1728.0, 2304.0)  

Issue QR Scan Output:

[Barcodes barcodes] {name: barcode, data: []}

Additional Info:

• The QR content is valid.
• The same photographed image works in other scanners.
• Looks like the plugin fails to detect barcodes from photographed QR images in certain cases.

Plugin version: mobile_scanner: ^7.0.1

[developer-nesamani]

This issue only occurs on Android devices using Google ML Kit @juliansteenbakker