显示相对布局和imageview

动态添加RelativeLayout和ImageView，但是在模拟器中运行没显示

代码

RelativeLayout relativeLayout = new RelativeLayout(this);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(     
RelativeLayout.LayoutParams.WRAP_CONTENT, 
RelativeLayout.LayoutParams.WRAP_CONTENT);
ImageView iv = new ImageView(this);         
iv.setImageResource(R.drawable.freshface_mmm);
relativeLayout.addView(iv,lp);

你还要把你的relativeLayout添加到activity里.
addContentView(view, params)

ViewGroup relativeLayout = new RelativeLayout(getActivity());