It would be nice to get a QR code for the onuon address

Tor can scan QR codes to open addresses, so it would be nice for the app to facilitate generating one.

Maybe the app could generate one itself. Pehaps more useful would be give the option to open the system share dialog, allowing the user to use any number of options, including generating a QR code if an appropriate app is installed. Open approach is a "Share" buton next to the copy button.