listView局部刷新

listview局部刷新关键逻辑代码：在activity中

 /**  * listview局部更新  */ private void updateListView(int position){        int firstVisiblePosition = mListView.getFirstVisiblePosition();        int lastVisiblePosition = mListView.getLastVisiblePosition();        if(position>=firstVisiblePosition && position<=lastVisiblePosition){        View view = mListView.getChildAt(position+1);//如果在listview中加了头部position需要加1，否则不需要        RobInfo mRobInfo = robData.get(position);        if(view.getTag() instanceof viewHolder){        viewHolder vh = (viewHolder)view.getTag();        //更新该item                }}    }