title: How to use SnapHelper with RecyclerView
body: <p>I m stuck with SnapHelper for RecyclerView. I m confused to use it with LayoutManager in Vertical</p>
  
  <p>I already used in Horizontal like</p>
  
  <pre><code>mLayoutManager = new LinearLayoutManager(mActivity);
  mRecyclerView.setLayoutManager(mLayoutManager);
  SnapHelper snapHelper = new LinearSnapHelper();
  snapHelper.attachToRecyclerView(mRecyclerView);
  </code></pre>