I just created an app where the user should be able to scan an QR Code.
When I tested it with the thunkable live app everythings works fine.
But when I published the app and tried to use it, it fails everytime.
I also tried it with the example project that thunkable provided and even there it showed “null” when I clicked the button to scan the QR Code. Or lets say it doesnt even open the camera and directly showed me null as an result.
You can click on the barcode block and choose Show Advanced Block. Then you can display the green blocks’ values in labels and re-publish the app so you have some information when troubleshooting this.
Barcode Scanner is not supported on the web, this means that to test it you have to download the app on your device or test it through the Thunkable Live App.