我在为以下代码实现异步图像加载器时遇到问题。我在网上阅读了一些关于它的帖子,我想我理解它背后的逻辑,但我似乎未能实现它。
下面的代码是我用来简单地在我的列表视图中加载图像的代码。
public class MyCustomAdapter extends ArrayAdapter<RSSItem> {
Bitmap bm;
public MyCustomAdapter(Context context, int textViewResourceId, List<RSSItem> list) {
super(context, textViewResourceId, list);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
BitmapFactory.Options bmOptions;
bmOptions = new BitmapFactory.Options();
bmOptions.inSampleSize = 1;
bm = LoadImage(myRssFeed.getList().get(position).getDescription(), bmOptions);
View row = convertView;
if(row == null) {
LayoutInflater inflater = getLayoutInflater();
row = inflater.inflate(R.layout.rsslist, parent, false);
}
TextView listTitle = (TextView)row.findViewById(R.id.listtitle);
listTitle.setText(myRssFeed.getList().get(position).getTitle());
ImageView listDescription = (ImageView)row.findViewById(R.id.listdescription);
listDescription.setImageBitmap(bm);
TextView listPubdate = (TextView)row.findViewById(R.id.listpubdate);
listPubdate.setText(myRssFeed.getList().get(position).getPubdate());
return row;
}
}