The application I'm currently working on requires a manual setup (entering some information) on device provisioning. This information needs to be written to a file that should not be deleted when the application is uninstall or the application data is wiped (user support requirement, as they can direct users to do this in some cases)
There was a very similar old question, but the answer is now deprecated and no up-to-date answer has been posted
Keep files after uninstallation of android app
So the question is, given the deprecation of Environment.getExternalStorageDirectory() on Android 10, how do we programmatically write/read a file that will not be deleted when the application is uninstalled or the data is wiped?
For what is worth, we can not rely on app auto backup, as the users don't have google accounts configured.
Thanks
To summarize while targetting 30.
For Android 10 device: Request legacy external storage to get external storage access as usual.
And Googles step back for Android 11 devices: use directories like Download, Pictures, Movies, Documents, DCIM and so on. Read and write access for all. Android OS is very picky to use the right extensions for files to be created in those folders.