Adapter的一种写法
package com.xxkjx.jiusanqi;
import java.util.List;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class NewsListViewAdapter extends BaseAdapter {
List<News> list;
LayoutInflater inflater;
Context context;
public NewsListViewAdapter(List<News> list, Context context) {
super();
this.list = list;
this.context = context;
inflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return list.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return list.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ViewHolder viewHolder = null;
if (convertView == null) {
convertView = inflater.inflate(R.layout.activity_news_list_item,
null);
viewHolder = new ViewHolder();
viewHolder.title = (TextView) convertView
.findViewById(R.id.tv_news_title);
viewHolder.publish = (TextView) convertView
.findViewById(R.id.tv_news_publish);
viewHolder.brief = (TextView) convertView
.findViewById(R.id.tv_news_brief);
viewHolder.image = (ImageView) convertView
.findViewById(R.id.img_news);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.title.setText(list.get(position).getTitle());
viewHolder.publish.setText(list.get(position).getPubblish());
viewHolder.brief.setText(list.get(position).getBrief());
viewHolder.image.setImageResource(list.get(position).getImg());
return convertView;
}
class ViewHolder {
TextView title;
TextView publish;
TextView brief;
ImageView image;
}
}
