Efficient Album Cover loading for ListView

I have a list view which display in each view a Album's name, the associated Artist and the album art.

Here is the code of my ListFragment which display this list:

public class AlbumsFragment extends ListFragment implements LoaderManager.LoaderCallbacks {

AlbumsAdapter mAdapter;

        @Override
           public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
           View myFragmentView = inflater.inflate(R.layout.albums_fragment_layout, container, false);
           return myFragmentView;
         }

        @Override
          public void onActivityCreated(Bundle savedInstanceState) {
           super.onActivityCreated(savedInstanceState);

                    mAdapter = new AlbumsAdapter(getActivity(), null);
                    setListAdapter(mAdapter);
                    getLoaderManager().initLoader(0, null, this);                               
        }

static final String[] ALBUM_SUMMARY_PROJECTION = { MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ALBUM, MediaStore.Audio.Albums.ARTIST, MediaStore.Audio.Albums.ALBUM_ART,};  

        public Loader onCreateLoader(int id, Bundle args) {      
            String select = null;  
            return new CursorLoader(getActivity(), MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,ALBUM_SUMMARY_PROJECTION, select, null, null);  
        }  

        public void onLoadFinished(Loader loader, Cursor data) {  
            mAdapter.swapCursor(data);  
        }  

        public void onLoaderReset(Loader loader) {  
            mAdapter.swapCursor(null);  
        }  
    }

Here is my custom CursorAdapter's code:

```
public class AlbumsAdapter extends CursorAdapter {

private final LayoutInflater mInflater;

public AlbumsAdapter(Context context, Cursor c) {
super(context, c);
mInflater=LayoutInflater.from(context);

}
@Override
public void bindView(View view, Context context, Cursor cursor) {

ViewHold

Your lag will be coming from this line:

Bitmap coverBitmap = BitmapFactory.decodeFile(cursor.getString(holder.column3));

Your right about doing it asyncrhonously.
You could also scale the image.

What you'll want to do is:

• spawn a new thread

• use a handler for when the bitmap has decoded

• set the bitmap on the imageview in the callback

You could set the image to a spinner whilst it is loading.

An example of something similar is:

http://blog.blundellapps.co.uk/imageview-with-loading-spinner/

And an example of image scaling is:

http://developer.android.com/training/displaying-bitmaps/load-bitmap.html#load-bitmap

StackExchange Code Review Q#12615, answer score: 2