1.getView里的
ViewHolder holder;
if(convertView==null){
holder=new ViewHolder();
convertView= View.inflate(context, R.layout.list_item, null);
holder.text=convertView.findViewById(R.id.text);
convertView.setTag(holder);
}else{
holder= (ViewHolder) convertView.getTag();
}
holder.text.setText(list.get(position).getNews_title());
return convertView;
}
class ViewHolder{
TextView text;
}