请教如何在listview中点击每个item时重新设置item中控件的值

//添加点击
lv1.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView arg0, View arg1, int arg2,
long arg3) {
setTitle("点击第"+(arg2+1)+"个项目");
// Log.i("username", listitem.get(arg2).get("tv")+"========");
// System.out.println(arg0.getItemAtPosition(arg2).toString()+"========ss");

SimpleAdapter sAdapter = (SimpleAdapter)lv1.getAdapter();
if(Integer.parseInt(listitem.get(arg2).get("iv").toString())==R.drawable.star_off){
listitem.get(arg2).put("iv", R.drawable.star_on);

}else{
listitem.get(arg2).put("iv", R.drawable.star_off);

}
sAdapter.notifyDataSetChanged();
System.out.println("isshow==="+isshow);

}
});
改变arraylist里的值 再刷新ListView,我是这样做的，也不知道有不有更好的方法！