Scanning a Barcode with a Hybrid Android Smartphone with Appium

is it possible on Appium to scan a Barcode?

First of all, my app scans Barcodes with a barcode Scanner running on Android.

I know the method to start appium with --relaxed securitys and then using the adb shell. After that you can use a cmd command to do it, but it wont work for me cause i am not allowed to start appium with relaxed securitys. Dont ask why^^

So i have to do it in a different way. Would it be possible to have the barcode to be storaged on the smartphone as a png and when my app whants to scan something to inject that png file?

Thank you in advance!