I want to save a file in the desired path

[Anke]

@Micha_Kraus

I want to save and read something under internal storage/Android/media/

You can't on Android 11+ without SAF or without granting MANAGE_EXTERNAL_STORAGE permission. But you can read media files with the respective READ permissions.

See also here:

How to access non-media & media files on Android 11+

Access to non-media files on Android 11+ On Android 11+, non-media files (like txt, pdf, csv, ...) can be accessed if and only if the text files are in the → ASD or in the → Private dir (i.e. were saved there), or the text files are in one of the Shared folders /Documents or /Download and these files were created by the app itself, or SAF is used, or MANAGE_EXTERNAL_STORAGE* permission is requested and granted. *` This is not really an option, because an app that requests this permission…