Samsung Galaxy A23 wrong scan area

[p3pp8]

• Mobile scanner 3.2.0
• Device Samsung Galaxy A23 (tested about 4 device with same result)

It seems that the detection area is located at the upper right screen edge and that it is very small, infact to detect codes i have to put the camera backward enough to reduce the framed code size and move it to the upper right screen edge.

InkedScreenshot_20230422_095609_DropPay Stage

[p3pp8]

Just tested using the scanWindow attribute but seems to be ignored.

[p3pp8]

Fixed uncommenting this line in MobileScanner.kt inside method start():

analysisBuilder.setTargetResolution(Size(1440, 1920))

I've tried out many resolutions and it always do the job, so i guess, for certain devices, target resolution for analysis builder must always be set.

[p3pp8]

This one solves the problem without any aspect ratio issue, no need to set target resolution anymore:

       val camProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH)
           analysisBuilder.setDefaultResolution(Size(camProfile.videoFrameWidth, camProfile.videoFrameHeight))

I don't know if this is the right solution but in my case i've tested many devices and everything seems working as aspected.

I've updated many times this comment, i finally discovered that just setting the default resolution solves the issue.

[danielleung30]

Did you tested on ios device?

[p3pp8]

@danielleung30 Yes, it works seamlessly. The issue affects only certain Android devices like Galaxy A22 and A23, but i think many others...

[danielleung30]

Thank you bro, you save the day

[rpelant]

Hello, any news on this? When this issue will be resolved? Having the same symptoms reading QR code on A23.

[juliansteenbakker]

I am working on an updated version of #612 which should fix this issue

[nirbar89]

Any one test version 3.5.1

[p3pp8]

Just tested version 3.5.1, nothing to do, the issue is, unfortunately, still there !!!

[WelliRigo]

Tested on 4.0.0 and the issue is still there

[rpelant]

Issue is easily resolved setting cameraResolution in MobileScannerController to some reasonable value , for example 1024, 768

[WelliRigo]

Yes, but... still an issue. Also setting the resolution has other implications

[burekas7]

Hi, Any update here?

[p3pp8]

The author of this plugin already managed to solve this issue, just set a 4:3 cameraResolution when constructing MobileScannerController.

    final _scannerController = MobileScannerController(
      // 24MPix with an aspect of 4:3 
      cameraResolution: const Size(6080, 8096),
    );

Feel free to set a higher resolution, if not available it will be set using the nearest one.

Hope this will be useful!