Hello
I've created a folder with a lot of sub-folders.
In each sub-folder there are many files.
You could browse the main folder and list its folders.
And also browse the files within any sub folder.
Note that the links for all are general arrival
Away from ContentResolver where you only can query something and you probably don´t get a real path when the user select one i only see the API use to get any data from GoogleDrive. The api provide methods to list files, folders, ectl.
With other words.
If you do not want to use any Api then ContentResolver is probably all you can use.