This guide shows how you can download a private/restricted file from google drive to your app, using a google apps script web app. Expanding on this, it also demonstrates how to download a directory structure from google drive and replicate it on an android device.
Notes:
- requires knowledge of google apps script creation and publishing
- and before anyone starts....it is purposefully intended to ask the user for read/write permissions when compiled
- I realise that I may only need to ask for read permission in Android 11
- the missing Stage 2 has now been completed