code: protected void onGetImageSuccess(String cacheKey, Bitmap response) {
          // cache the image that was fetched.
          imageCache.putBitmap(cacheKey, response);
  
          // remove the request from the list of in-flight requests.
          BatchedImageRequest request = inFlightRequests.remove(cacheKey);
  
          if (request != null) {
              // Update the response bitmap.
              request.mResponseBitmap = response;
  
              // Send the batched response
              batchResponse(cacheKey, request);
          }
      }
docs: Handler for when an image was successfully loaded.
  @param cacheKey The cache key that is associated with the image request.
  @param response The bitmap that was returned from the network.