@Override protected int sizeOf(String key,BitmapDrawable value){
  final int bitmapSize=getBitmapSize(value) / 1024;
  return bitmapSize == 0 ? 1 : bitmapSize;
}

@ Override protected int sizeOf ( String key , BitmapDrawable value ) { final int bitmapSize = getBitmapSize ( value ) / 1024 ; return bitmapSize == 0 ? 1 : bitmapSize ; }
measure item size in kilobytes rather than units which is more practical for a bitmap cache
