Android模仿易网新闻页面源码(异步加载)

package com.easymorse.list; import java.util.HashMap; import java.util.List; import java.util.Map; import android.app.Activity; import android.graphics.drawable.Drawable; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.TextView; import com.easymorse.list.AsyncImageLoader.ImageCallback; public class MyImageAndTextListAdapter extends ArrayAdapter<NewsBean> { public MyImageAndTextListAdapter(Activity activity, List<NewsBean> newsList) { super(activity, 0, newsList); } private AsyncImageLoader imageLoader = new AsyncImageLoader(); private Map<Integer, View> viewMap = new HashMap<Integer, View>(); @Override public View getView(int position, View convertView, ViewGroup parent) { View rowView = this.viewMap.get(position); if (rowView == null) { LayoutInflater inflater = ((Activity) this.getContext()) .getLayoutInflater(); rowView = inflater.inflate(R.layout.news_row, null); NewsBean newsBean = this.getItem(position); TextView textView = (TextView) rowView.findViewById(R.id.title); textView.setText(newsBean.getTitle()); final ImageView imageView = (ImageView) rowView .findViewById(R.id.image); imageLoader.loadDrawable(newsBean.getImage(), new ImageCallback() { public void imageLoaded(Drawable imageDrawable, String imageUrl) { imageView.setImageDrawable(imageDrawable); } }); viewMap.put(position, rowView); } return rowView; } }