用LayoutParams:
RelativeLayout insertLayout = (RelativeLayout)view1.findViewById(R.id.screen);//screen是一个RelativeLayout 布局的id
ImageView imgApple2 = new ImageView(MainActivity.this);
imgApple2.setBackgroundColor(Color.parseColor("#ffb6b4"));
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(100, 100);
layoutParams.topMargin=8;
layoutParams.leftMargin=8;
layoutParams.rightMargin=8;
layoutParams.bottomMargin=8;
insertLayout.addView(imgApple2,layoutParams);
原文地址:http://blog.csdn.net/darongzi1314/article/details/46356199