Scanning QR in a window

Questions about Thunkable
1

Hello Thunkables…
I’m building an app to scan QR codes on nametags for attendance purposes. I have two problems:
1- how I can show the camera opened in a square window, not on the whole screen?
2- is there a way to keep the capturing mode always on, which mean, the camera keeps capturing QR codes each time a nametag with QR code appears infront of the camera

Thanks

2

1- There are no options within thunkable to control the camera opening properties for barcose/qr scanner, full screen only. What is your use case for square window requirement?

2- There is no option to keep camera open after qr is read but would probably appear to stay open if you called the camera again as part of the qr read process?

3

Thanks, the use case is to scan only the targeted QR code. More than one student might show their name_tag at the same time. The current situation is that if more than 1 QR appears in within the screen, one of those QR codes will be scanned, which one? I don’t know. Also if any QR just appears even within one of the corners of the screen, its captured!

attached a screenshot from one of the apps that is defines the scanning area, so it ignores any QR out of this are…

WhatsApp Image 2025-01-18 at 10.08.41 PM
WhatsApp Image 2025-01-18 at 10.08.41 PM1080×1310 83.9 KB

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4

Thought that might be what you meant, i was looking at the same issue a little while ago as some of the older Iphones will only read a barcode if its dead centre in the screen, QRs are ok, only seems to affect barcodes.

I had to do a workround of triggering a notification to show just before the camera to instruct apple users to use centre of screen. This obviously does not solve your case.

Any chance of this being looked at for a future update? @brianl @ioannis @matt_conroy

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5

I can add this as a feature request but in my personal opinion, it is unlikely.

I did a little bit of research, but it seems likely that you could do everything you are asking about through Javascript and then add it into Thunkable via Modules. Could be one of the modules that I do at the end of the leaderboard season if someone proposes it (assuming that when I look into it, it actually turns out to be viable).

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