Android - Async Task behavior in 2.3.3 and 4.0 OS

Question

I am testing an application where we have a list view with list of images retrieved over network. When i run the application on android device 2.3.3 (WIFI speed 512 KBPS) an

Answer 1

You can use the AsyncTaskCompat.executeInParallel for API < 11, you find this class in the appcompat v4 library.

An exemple of use :

AsyncTaskCompat.executeParallel(new AsyncTask() {
        @Override
        protected Bitmap doInBackground(Void... params) {
            return MediaStore.Images.Thumbnails.getThumbnail(
                    imageView.getContext().getContentResolver(),
                    id,
                    MediaStore.Images.Thumbnails.MINI_KIND,
                    null);
        }
        @Override
        protected void onPostExecute(Bitmap bitmap) {
            imageView.setImageBitmap(bitmap);
            if (bitmap != null) {
                // Add the image to the memory cache first
                CACHE.put(id, bitmap);
                if (listener != null) {
                    listener.onImageLoaded(bitmap);
                }
            }
        }
    });

enjoy