Android : Android, i'm trying to hide a textView when a gridView is scrolled and make it visible once the user stops scrolling

In the below code only the onScroll method is called and the onScrollStateChanged method is never called, can you please help me fixing this issue:

mGridView.setOnScrollListener(new OnScrollListener() {

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

            check_text.setVisibility(View.VISIBLE);

            System.out.println("Inside onScroll");
        }

        @Override
        public void onScrollStateChanged(AbsListView view, int scrollState) {

            if(scrollState == SCROLL_STATE_IDLE)
             {
                check_text.setVisibility(View.VISIBLE);  
                System.out.println("Inside onScrollStateChanged");
             }              
        }
    });