Android Question How can we QRscan with just a constrain box

S

stevenindon

Active Member
Licensed User
Hello all,

I am using NewQRCodeReaderView to scan QRCode. What i am trying to achieve is to put a scan constrain box instead of
full screen like image attached : *I wanted the Blue Area to be the scan area... and Pink Area Non scan-able area (Will put a semi transparent black mask on top). Have anyone have a good idea to achieve this?

 
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Xfood

Expert
Licensed User
Longtime User
I would use such a thing

B4a Lettura Barcode

Ciao a tutti, volevo condividere un mio piccolo progetto utility per leggere barcode da telefonino, sulla base di CameraexClass, spero che posso essere utile a qualcuno, eventuali migliorie sono Gradite
www.b4x.com


taken from here:

[B4X] [B4XPages] Barcode Reader

B4A + B4i barcode reader. Don't miss: - #PlistExtra in B4i. - Manifest code + #AdditionalJar in B4A Depends on BCToast: https://www.b4x.com/android/forum/threads/b4x-bctoast-cross-platform-custom-toast-message.111046/#content (BCToast will be an internal library in the near future) While the...
www.b4x.com
 
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S

stevenindon

Active Member
Licensed User
XFood,

Thank you for your suggestion.. but i found that NewQRCodeReaderView is super sensative on detecting QRCodes. It works all the time. For you to have a clearer picture of what i am trying to achieve, I have screen capture a QRReader from other application :

As you can see... the application will scan any QRCodes that falls INSIDE the "Clear" box (Box with red line)... and the rest of the space are surrounded with SEMI TRANSPARENT IMAGE from camera. This is just what i am trying to achieve.

I tried to mask a semi transparent Image on top of NewQRCodeReaderView which will look the same as image attached... but the problem is the MASKED areas will Scan QRcode as well when it 'sees' one...

Thanks
 

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Xfood

Expert
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Longtime User
I do not know the library you are talking about, two links that I have suggested should be for you try them
 
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M

MikeSW17

Active Member
Licensed User
Longtime User
Just a warning on NewQRCodeReaderView, the underlying github project QRCodeReaderView is "No Longer Actively Maintained" and 4 years since last update.
Even if it works now, there may be future compatibility issues.
 
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S

stevenindon

Active Member
Licensed User
Thank you aeric.. good thinking. I shall try using the same idea and hope to come out with a similar solution.

Thanks again.
 
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