[Résolu] Méthode asynchrone pour télécharger l'image

class BitmapFetcherTask extends AsyncTask<Integer, Void, Bitmap> {
        private Integer position;
        private final WeakReference<ImageView> imageViewReference;
        private final Context mContext;

        public BitmapFetcherTask(Context context, ImageView imageView) {
            imageViewReference = new WeakReference<ImageView>(imageView);
            mContext = context;
        }

        /**
         * Actual download method.
         */
        @Override
        protected Bitmap doInBackground(Integer... params) {
            position = params[0];
            if (isCancelled()) {
                return null;
            }
            Bitmap thumb = MediaStore.Images.Thumbnails.getThumbnail(mContext.getContentResolver(), position, 12345,
                    MediaStore.Images.Thumbnails.MICRO_KIND, null);
            if (isCancelled()) {
                return null;
            }
            if (thumb == null) {
                return null;
            } else {
                if (isCancelled()) {
                    return null;
                } else {
                    return thumb;
                }
            }

        }
}