android listview判断是否滑动到顶部还是底部

 listView.setOnScrollListener(new AbsListView.OnScrollListener() {

            @Override

            public void onScrollStateChanged(AbsListView view, int scrollState) {

            }

            @Override

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

                if (firstVisibleItem == 0) {

                    Toast.makeText(MyActivity.this, "滑到顶部",1).show();

                }

                if (visibleItemCount + firstVisibleItem == totalItemCount) {

                    Toast.makeText(MyActivity.this, "滑到底部",1).show();

                }

            }

        });