[BUG] Barcode scanner does not work

[apohh]

Since last update, the barcode scanner does not identify barcodes anymore.
I have observed this for QR Codes generated by Inventree and Digikey barcodes.

App has been reinstalled, to no avail.

Inventree App : 0.17.3 Build 95
Inventree Server : 0.17.2
Phone : VNE-N41 with Android 12

inventreeApp_barcodeReaderBug.mp4

Thank you.

[SchrodingersGat]

@apohh that's strange. I have justed tested on my phone (Android 15) and it scans the barcodes directly from your video.

[apohh]

Strange indeed!

I have asked a colleague to install the application to see if the bug can be reproduced on another phone.

In the meantime I tried collecting some debug information with USB debug + adb + logcat (first time use).
That's a lot of chatter for a 5s log but I don't know how to filter without deleting relevant information.

I first tapped on the InvenTree App icon then I tapped as fast as possible on the barcode reader button. Camera was still running at the time I killed logcat.

I don't know how useful it will be.
Anyway many errors popped up after initializing the camera. EDIT : there are apparently a lot of error even when using the system camera app, mainly "[ERROR][STATS_AEC]".

inventreeApp_BarcodeReaderBug_logcat.txt

[SchrodingersGat]

We use the flutter_zxing library for barcode scanning. That has a minum Android API level requirement of 21 (Android version 5).

[apohh]

@SchrodingersGat Thank you for the information.

To confirm the incompatibility, I tested ZXScanner V1.2.0, which is based on flutter_zxing, and it doesn't work either, despite my phone running Android 12.

I will wait for a possible update to the library. Since there’s no immediate solution, I’ll leave it up to you to decide whether to close this issue or not.

[matmair]

@apohh are you using Microsoft Intune on the device? That can block some functions that interact with the camera.

[apohh]

I don’t have Microsoft Intune, but thank you for asking nonetheless.

Barcode scanning worked with a previous version of the InvenTree app, although I don’t remember which one exactly.

If I had to guess from the release notes, it would be version 0.16.5, as it seems the switch to flutter_zxing happened with version 0.17.0.

I’ve also tested other barcode scanning apps which were installed on my phone, and they are still functional.

[SchrodingersGat]

@apohh it might be worth checking in the GitHub page for flutter_zxing to see if there are any reported compatibility issues

[SchrodingersGat]

khoren93/flutter_zxing#150