先图为敬。注：本文纯使用说明，具体剖析详见原主：
简：http://www.jianshu.com/p/3fe949083029
GitHub: https://github.com/zhuguohui/HorizontalPage
图三实现代码：(使用到的类PagingScrollHelper ，DividerItemDecoration)
注：此版本的RecyclerView需要25.0以上。
``
PagingScrollHelper scrollHelper = new PagingScrollHelper();
recyclerView.setAdapter(adapter);
scrollHelper.setUpRecycleView(recyclerView);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
RecyclerView.ItemDecoration itemDecoration = new DividerItemDecoration(this, LinearLayoutManager.HORIZONTAL);
RecyclerView.ItemDecoration lastItemDecoration = itemDecoration ;
recyclerView.setLayoutManager(layoutManager);
recyclerView.removeItemDecoration(lastItemDecoration);
recyclerView.addItemDecoration(itemDecoration);
scrollHelper.updateLayoutManger();
如若出现item需要双击才能点开的bug，修改PagingScrollHelper类中：
mAnimator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
//回调监听
if (null != mOnPageChangeListener) {
mOnPageChangeListener.onPageChange(getPageIndex());
}
//修复双击item bug
mRecyclerView.stopScroll();
startY = offsetY;
startX = offsetX;
}
});
