Asynchronous ListView image and data loading in Android

Hi! Today I'm going to tell you how to load data in ListView items asynchronous in Android.
First. For example we'll build a list of images, that we download from the Internet.
Second. ListView item is the simple LinearLayout with ImageView.

Third. Our adapter code:

public class ImageListAdapter extends BaseAdapter {
 
 private List itemsUrls;
 private Context ctx;
 
 public FeedListAdapter(Context ctx) {
  this.ctx = ctx;
 }
 
 private class ViewHolder {
  public ImageView image;
  
 }

 @Override
 public int getCount() {
  return itemsUrls.size();
 }

 @Override
 public Status getItem(int pos) {
  return itemsUrls.get(pos);
 }

 @Override
 public long getItemId(int pos) {
  return pos;
 }

 @Override
 public View getView(int pos, View convertView, ViewGroup parent) {
  View v = convertView;
  if(v == null){
   LayoutInflater vi = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
   v = vi.inflate(R.layout.status_item, null);
   ViewHolder holder = new ViewHolder();
   holder.image = (ImageView) v.findViewById(R.id.image);
   v.setTag(holder);
  }
  ViewHolder holder = (ViewHolder)v.getTag();
  //Setting the image url as a tag for the image view
  holder.image.setTag(items.get(pos));
  holder.image.setImageDrawable(null);
  //starting async task for image loading
  new ImageTask().execute(holder);
  return v;
 }
 
 private class ImageTask extends AsyncTask {
  
  private ImageView avatarImage;
  private Bitmap av = null;
  private String url;
  
  @Override
  protected void onPostExecute(Boolean result) {
   super.onPostExecute(result);
   if(result && av != null) {
    if(avatarImage.getTag().toString().equals(url)) {
     avatarImage.setImageBitmap(av);
    }
   }
  }

  @Override
  protected Boolean doInBackground(ViewHolder... params) {
   ViewHolder item = (ViewHolder) params[0];
   boolean result = false;
   if(item != null) {
    try {
     avatarImage = item.image;
     url = item.image.getTag().toString();
     av = getBitmapMethod(url);
     result = true;
    } catch (Exception e) {
     e.printStackTrace();
    }
   }
   return result;
  }
  
 }
}

Here it is, now we have the async image loading as in different twitter clients.