Samba and a Uri

As noted by Android Police,
Google has released a Samba client app for Android on the Play Store.
Users can use this app to connect their device to a SMB/CIFS file server, which
is the protocol typically used for Windows file servers.

And, as you can see from the source code,
the implementation is a DocumentsProvider. Any app that uses ACTION_OPEN_DOCUMENT,
ACTION_OPEN_DOCUMENT_TREE, or ACTION_CREATE_DOCUMENT can now work seamlessly
with Windows file servers��� except for those apps written by developers who keep
insisting that a Uri always points to a local file.

If you are using these Storage Access Framework actions, the Uri that you
get back does not have to point to anything on the device���s filesystem that
you can access. Always use a ContentResolver and openInputStream()/openOutputStream()
to manipulate the content. For more, see
this post from March 2016.