int px = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, DIP_Value , getResources().getDisplayMetrics());
RelativeLayout.LayoutParams textbox = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
textbox.setMargins(px, 0, 0, 0);