view.setTag与view.getTag的作用

来源：互联网发布：菜鸟网络估值2017 编辑：程序博客网时间：2024/05/01 16:44

</pre><pre name="code" class="java">

</pre><pre name="code" class="java">@Overridepublic View getView(int arg0, View arg1, ViewGroup arg2) {// TODO Auto-generated method stubViewHolder viewHolder = null;if (arg1 ==null) {viewHolder = new ViewHolder();arg1 = minflater.inflate(R.layout.item_layout, null);viewHolder.ivIcon = (ImageView) arg1.findViewById(R.id.iv_icon);viewHolder.tvTitle = (TextView) arg1.findViewById(R.id.tv_title);viewHolder.tvContent = (TextView) arg1.findViewById(R.id.tv_content);arg1.setTag(viewHolder);//缓存起来多次使用;}else {viewHolder = (ViewHolder) arg1.getTag();//在这就使用了;}viewHolder.ivIcon.setImageResource(R.drawable.ic_launcher);String url = mList.get(arg0).newsIconUrl;viewHolder.ivIcon.setTag(url);new ImageLoader().showImageByThread(viewHolder.ivIcon,url);viewHolder.tvTitle.setText(mList.get(arg0).newsTitle);viewHolder.tvContent.setText(mList.get(arg0).newsContent);return arg1;}

0 0