Load to Button Background from URL

gridcell = (Button) row.findViewById(R.id.calendar_day_gridcell);
gridcell.setText(theday);
ImageView iv = new ImageView(pcalendar.this);
UrlImageViewHelper.setUrlDrawable(iv,"http://172.16.4.29:81/pht/2013/9/18/3027_2013_9_18_12_14_56_b.JPG");
iv.buildDrawingCache();
Bitmap bmap = getResizedBitmap(iv.getDrawingCache(), 80, 80);
Drawable d = new BitmapDrawable(getResources(), bmap);
gridcell.setBackground(d);