ListView mit ImageView: Bilder im Hintergrund laden

Cursor c = myDB.rawQuery(query, null);
startManagingCursor(c);
c.moveToFirst();
				
SimpleCursorAdapter adapter = new SimpleCursorAdapter(getApplicationContext(), R.layout.list_item, c, new String[]{"url", "name"}, new int[] {R.id.itemIcon, R.id.itemCaption});

ViewBinder viewBinder = new ViewBinder() {
	public boolean setViewValue(View view, Cursor cursor, int columnIndex){
		if (columnIndex == 3) {
			ImageView image = (ImageView) view;
			Bitmap bmpStreamLogo = getBitmapFromURL(cursor.getString(columnIndex));
			image.setImageBitmap(bmpStreamLogo);
			return true;
	        }
		return false;
	}
    };
			
    ImageView image = (ImageView) findViewById(R.id.itemIcon);
    viewBinder.setViewValue(image, c, 3);
    adapter.setViewBinder(viewBinder);
    }
		
lvStations.setAdapter(adapter);
}