code: private void loadThumbnail(final ImageView mHeaderImageView, Item mItem) {
          Picasso.with(this)
                  .load(mItem.getThumbnailUrl())
                  .noFade()
                  .into(mHeaderImageView, new Callback() {
                      @Override
                      public void onSuccess() {
                          scheduleStartPostponedTransition(mHeaderImageView);
                      }
  
                      @Override
                      public void onError() {
  
                      }
                  });
      }
docs: Load the item's thumbnail image into our {@link ImageView}.