RecyclerView 简单分页加载

recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {

        @Override
        public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
            super.onScrollStateChanged(recyclerView, newState);
     
            //状态加载，显示条目+2，重新加载
            if(newState == RecyclerView.SCROLL_STATE_IDLE &&
                    lastVisibleItem+2 >= manager.getItemCount()){
                currentPage++;
                showPhotoWindow();
            }
        }

    @Override
    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
        super.onScrolled(recyclerView, dx, dy);
        lastVisibleItem = manager.findLastVisibleItemPosition();
    }
});

addOnScrollListener都可以通过onScrollStateChanged判断当前滑动状态，当状态为SCROLL_STATE_IDLE时才加载