Странная утечка памяти ,Android

listView.setOnScrollListener(new AbsListView.OnScrollListener() {
            @Override
            public void onScroll(AbsListView view, int firstVisibleItem,
                                 int visibleItemCount, int totalItemCount) {

                int pos = view.getFirstVisiblePosition();
                View firstChild = view.getChildAt(pos);
                if (firstChild != null) {
                    topY = firstChild.getTop();
                    TextView textView = (TextView) firstChild.findViewById(R.id.textView);
                    ImageView imageView = (ImageView) firstChild.findViewById(R.id.imageView);
                    FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) imageView.getLayoutParams();
                    params.setMargins(0, -topY / 2, 0, 0);
                    imageView.setLayoutParams(params); // ВОТ ТУТ УТЕЧКА, Коментируем строчку - утечки нет. 
                }