listView下拉刷新点击加载更多

publicvoidinitHeadView(Contextcontext,Stringtime){mHeadView=LayoutInflater.from(context).inflate(R.layout.head,null);mArrowImageView=(ImageView)mHeadView.findViewById(R.id.head_arrowImageView);mArrowImageView.setMinimumWidth(60);mHeadProgressBar=(ProgressBar)mHeadView.findViewById(R.id.head_progressBar);