beauty_recycle.addOnScrollListener(new RecyclerView.OnScrollListener() { @Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { super.onScrolled(recyclerView, dx, dy); if (dy > 0 && floatingActionButton.getVisibility() == View.VISIBLE){ floatingActionButton.hide(); }else if (dy < 0 && floatingActionButton.getVisibility() != View.VISIBLE){ floatingActionButton.show(); } }
});
给RecycleView设置监听。