Osmdroid is the usual place to change tile location offline

I am using this code to display Osmdroid standalone graphical slices. The problem is I saved my tiles in location / sdcard / emulated0 / 0 /. Is there any way how to pass it to XYTileSource?

thank

    myMapView.setTileSource  (new XYTileSource ("Mapnik", ResourceProxy.string.offline_mode, 13, 17, 512, ".png", "http://127.0.0.1"))