Android Storage Access FrameWork and hidden files

Im new to Storage Access FrameWork on Android.

I need to be able to access hidden files on an external USB drive plugged into Android using the Storage Access FrameWork.

Im wondering if its possible for an app to access hidden files stored on an external USB drive connected to Android.

It seems in order to access a file, Android must display a dialog box where the user picks a file, giving the app access to only that file.

So if the file is hidden, it will not get displayed in the list of file presented by android to the user, so then the user cant pick the file, then the app wont have permission to access that file.

Is this correct? Is there a way around it?

Thanks