AssetManager assetManager = getAssets();  

AssetManager assetManager = getAssets();              try {         String[] files = assetManager.list("Files");           for(int i=0; i<FILES.LENGTH;              {  。。。。。。。        } 

try {               InputStream ims = assetManager.open("android_logo_small.jpg");            Drawable d = Drawable.createFromStream(ims, null);           // set the drawable to imageview         imgAssets.setImageDrawable(d);