I found a solution on Reddit, from someone with the same problem.  DO NOT download the Warehouse app from Google Play or Play Store.  I downloaded it from there and the scanners didn't work but if you download from the QB help page "Setup and use the Warehouse Manager in QuickBooks Desktop mobile" scroll down to Download and install the QuickBooks Desktop mobile app. click on "On a supported mobile barcode scanner"

Click on Download and install on Step 2.I am using this version and it is scanning.