(Android)Load an image asynchronous in listview from an URL
===

My boss said I have to use Android Query, and i found this site: http://code.google.com/p/android-query/wiki/ImageLoading
But i tried with: 
     
      aq.id(R.id.image1).image("http://www.vikispot.com/z/images/vikispot/android-w.png");

In my code, but i get this error:
"aq cannot be resolved"
What do i have to do to initialize that aq, do i have to import some lib?

This is my list view adapter:
    public static class ListViewAdapterWall extends BaseAdapter {
 		private LayoutInflater mInflater;

 		public ListViewAdapterWall(Context context) {

 			mInflater = LayoutInflater.from(context);

 		}

 		public int getCount() {
 			return ListviewContentWall.size();
 		}

 		public Object getItem(int position) {
 			return position;
 		}

 		public long getItemId(int position) {
 			return position;
 		}

 		public View getView(int position, View convertView, ViewGroup parent) {

 			ListContent holder;

 			if (convertView == null) {
 				convertView = mInflater.inflate(R.layout.listviewinflate, null);

 				holder = new ListContent();
 				holder.wallImage = (ImageView) convertView
 						.findViewById(R.id.wallImage1);
 				holder.wallButton = (ImageButton) convertView
 						.findViewById(R.id.wallButton1);
 				

 				convertView.setTag(holder);
 			} else {

 				holder = (ListContent) convertView.getTag();
 			}
 			
 			AQuery aq = new AQuery(convertView);
 			
 			aq.id(R.id.wallImage1).image("http://www.vikispot.com/z/images/vikispot/android-w.png");
 			//holder.wallImage.setBackgroundDrawable(ListviewContentWall.get(position));
 			//holder.wallButton.setBackgroundDrawable(ListviewContentWall.get(position));
 			//holder.text2.setText(ListviewContent2.get(position));
 			
 			return convertView;
 		}
 		