Issues traversing through directory hierarchy with Android Storage Access Framework / DocumentProvider using MTP

Question

UPDATE: My initial question may be misleading so I want to rephrase it: I want to traverse through the hierarchy tree from an MTP connected device through Android\'s Storage

Answer 1

The flags added before start activity for result do nothing.

I do not understand that you use DocumentsContract. The user picks a directory. From the uri you get you can construct a DocumentFile for that directory.

After that use DocumentFile::listFiles() on that instance to get a list of subdirectories and files.