list.java

 mList.setOnScrollListener(new OnScrollListener() {

            List<ViewPropertyAnimator> animations = new ArrayList<ViewPropertyAnimator>();

            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {
                if (scrollState == SCROLL_STATE_IDLE) {
                    int firstVisiblePosition = view.getFirstVisiblePosition();
                    int lastVisiblePosition = view.getLastVisiblePosition();
                    for(int i = lastVisiblePosition; i >= firstVisiblePosition; i--) {
                        final View v = view.getChildAt(i - firstVisiblePosition);
                        Object tag = v.getTag();
                        if (tag instanceof ThreadListAdapter.AdViewHolder) {
                            v.setBackgroundColor(getResources().getColor(android.R.color.holo_blue_bright));

                            ImageView iv = (ImageView) v.findViewById(R.id.nativeAdIcon);
                            if (iv != null) {
                                ViewPropertyAnimator animator = iv.animate().rotationY(180F).setDuration(1500).withEndAction(new Runnable() {
                                            @Override
                                            public void run() {
                                                v.setBackgroundColor(getResources().getColor(android.R.color.transparent));
                                            }
                                        });
                                animations.add(animator);
                                animator.start();

                                Log.d(TAG, "animating for position: " + i);
                            }
                        }
                    }
                }
            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {

            }
        });