title: is there any way to get thumbnail of images from USB OTG storage connected to android without copying full image
body: <p>I am trying to import selected images from usb drive connected to mobile phone (Nexus 6) which is not showing pendrive as external storage directories. I used this library: <a href="https://github.com/mjdev/libaums" rel="nofollow">https://github.com/mjdev/libaums</a>
  While using this library, I have to first copy all of the images from USB to local cache and from there I can show thumbnail to select which to import.I do not want to copy all the images I just want to get thumbnails and copy only selected images. So is there any way to get thumbnails from USB storage. I feel, ES file explorer and other explorer (whichever) are able to detect usb pendrive, they are not copying files to show thumbnails.</p>