package net.oschina.app.adapter;
import java.util.List;
import net.oschina.app.R;
import net.oschina.app.bean.News;
import net.oschina.app.common.StringUtils;
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;
/**
* 新闻资讯Adapter类
* @author liux (http://my.oschina.net/liux)
* @version 1.0
* @created 2012-3-21
*/
public class ListViewNewsAdapter extends BaseAdapter {
private Context context;//运行上下文
private List<News> listItems;//数据集合
private LayoutInflater listContainer;//视图容器
private int itemViewResource;//自定义项视图源
static class ListItemView{ //自定义控件集合
public TextView title;
public TextView author;
public TextView date;
public TextView count;
public ImageView flag;
}
/**
* 实例化Adapter
* @param context
* @param data
* @param resource
*/
public ListViewNewsAdapter(Context context, List<News> data,int resource) {
this.context = context;
this.listContainer = LayoutInflater.from(context); //创建视图容器并设置上下文
this.itemViewResource = resource;
this.listItems = data;
}
public int getCount() {
return listItems.size();
}
public Object getItem(int arg0) {
return null;
}
public long getItemId(int arg0) {
return 0;
}
/**
* ListView Item设置
*/
public View getView(int position, View convertView, ViewGroup parent) {
//Log.d("method", "getView");
//自定义视图
ListItemView listItemView = null;
if (convertView == null) {
//获取list_item布局文件的视图
convertView = listContainer.inflate(this.itemViewResource, null);
listItemView = new ListItemView();
//获取控件对象
listItemView.title = (TextView)convertView.findViewById(R.id.news_listitem_title);
listItemView.author = (TextView)convertView.findViewById(R.id.news_listitem_author);
listItemView.count= (TextView)convertView.findViewById(R.id.news_listitem_commentCount);
listItemView.date= (TextView)convertView.findViewById(R.id.news_listitem_date);
listItemView.flag= (ImageView)convertView.findViewById(R.id.news_listitem_flag);
//设置控件集到convertView
convertView.setTag(listItemView);
}else {
listItemView = (ListItemView)convertView.getTag();
}
//设置文字和图片
News news = listItems.get(position);
listItemView.title.setText(news.getTitle());
listItemView.title.setTag(news);//设置隐藏参数(实体类)
listItemView.author.setText(news.getAuthor());
listItemView.date.setText(StringUtils.friendly_time(news.getPubDate()));
listItemView.count.setText(news.getCommentCount()+"");
if(StringUtils.isToday(news.getPubDate()))
listItemView.flag.setVisibility(View.VISIBLE);
else
listItemView.flag.setVisibility(View.GONE);
return convertView;
}
}