package com.andbase.demo.adapter;
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;
import com.ab.image.AbImageLoader;
import com.andbase.R;
import com.andbase.demo.model.Article;
/**
* © 2012 amsoft.cn
* 名称:ArticleListAdapter
* 描述:文章对象自定义Adapter例子
* @author 还如一梦中
* @date 2011-11-8
* @version
*/
public class ArticleListAdapter extends BaseAdapter{
private Context mContext;
//列表展现的数据
private List<Article> mList;
//图片下载器
private AbImageLoader mAbImageLoader = null;
/**
* 构造方法
* @param context
* @param list 列表展现的数据
*/
public ArticleListAdapter(Context context, List<Article> list){
mContext = context;
mList = list;
//图片下载器
mAbImageLoader = AbImageLoader.getInstance(context);
}
@Override
public int getCount() {
if(mList==null){
return 0;
}
return mList.size();
}
@Override
public Object getItem(int position) {
return mList.get(position);
}
@Override
public long getItemId(int position){
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent){
final ViewHolder holder;
if(convertView == null){
//使用自定义的list_items作为Layout
convertView = LayoutInflater.from(mContext).inflate(R.layout.item_list, parent, false);
//使用减少findView的次数
holder = new ViewHolder();
holder.itemsIcon = ((ImageView) convertView.findViewById(R.id.itemsIcon)) ;
holder.itemsTitle = ((TextView) convertView.findViewById(R.id.itemsTitle));
holder.itemsText = ((TextView) convertView.findViewById(R.id.itemsText));
//设置标记
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
//获取该行数据
Article mArticle = (Article)mList.get(position);
//设置数据到View
String imageUrl = (String)mArticle.getImageUrl();
//设置加载中的View
View loadingView = convertView.findViewById(R.id.progressBar);
//图片的下载
mAbImageLoader.display(holder.itemsIcon,loadingView,imageUrl,500,500);
holder.itemsTitle.setText(mArticle.getTitle());
holder.itemsText.setText(mArticle.getCreateTime());
return convertView;
}
/**
* ViewHolder类
*/
static class ViewHolder {
ImageView itemsIcon;
TextView itemsTitle;
TextView itemsText;
}
}