How to get list of all folders and files from google drive in android

Question

I have started developing a app in which i have to list of all folders and files from google drive.

I have go through all the documentation and below demo links as sugge

Answer 1

You need to request the correct Scope.

https://developers.google.com/drive/v3/web/about-auth#AboutAuthorization

To have full access to all files\folders requires the scope: https://www.googleapis.com/auth/drive