I am the developer of an Android app called SpiritCloud and this issue was brought to my attention by a customer. Spirit Cloud creates document providers that will serve up remote content using network file sharing. These document providers can be browsed using the Android system explorer which is integrated into Poweramp and is presented to the Poweramp user when they select "Add Folder or Storage" within the "Folder Selection" dialog box. Once a document provider is selected though and enabled in the Folder selection list, it is not scanned by Poweramp. I suspect Poweramp is expecting the directory that is returned by the system explorer dialog to be a local directory. These are the steps I followed:
Download a trial version of Poweramp and launch it
Select Folers within Poweramp
Add Folder or Storage which brings up the system file explorer
Select the Spirit Cloud server for a remote export
Navigate to a directory on the remote and click use this folder
The remote folder is visible in Poweramps "folder selection" list
and click save.
Now at the same time, I ran "wireshark" on my remote system. Wireshark is a network packet analyzer which will capture all traffic between the phone and the server.
I then clicked "rescan" in Poweramp. But unfortunately it appears that Poweramp didn't actually attempt to scan the remote share. No network traffic was generated and no content was discovered by Poweramp.
The question may be summarized as "Does Poweramp support Android's Storage Access Framework"?
