Is there some way how to obtain PID of process that created some folder? By ls -l, I get UID and GID only. I am quite sure that it was possible but I forgot how I did it last time. And I am not able to find it.
In more details: I am sure that I was able to pair folder in with app that created it. And I used PID obtained by android.os.Process.myUid() for pairing. Thank you for any help.
No.
Android is a Linux system, and Linux is Unix-like. Unix filesystems store the user and group that own it. Process ids are temporal, and don't have any long-term meaning. They are not stored in the filesystem.