title: Disable screenshot function in Android and iOS app
body: <p>I'm interested in creating an access control app for a project in college. The app would contain a barcode/QR code to read the person identity when placed under a scanner. </p>
  
  <p>To limit unauthorised persons from obtaining access to the barcode used for entry I was hoping to disable a person from taking a screenshot whilst in the app. Is this feature possible? </p>
  
  <p>Thanks in advance!</p>