android后台设置控件相对位置

holder.name.setPadding(2, 5, 10, 5);
				
				MarginLayoutParams margin=new MarginLayoutParams(holder.name.getLayoutParams());  
				margin.setMargins(10+margin.width,margin.topMargin, 10,margin.bottomMargin);  
		        RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(margin);  
		        holder.academy.setLayoutParams(layoutParams);  
		    
这段代码似乎没用。怎么没有设置android:layout_toRightOf="@id/name类似的代码，还得在前台设置。