title: Horizontal RecyclerView inside ViewPager is not scrolling
body: <p>I have a horizontal RecyclerView inside a Complex hierarchy that looks like this -</p>
  
  <pre><code>&lt;ViewPager id="+@id/first"&gt;
      &lt;ViewPager id="+@id/second"&gt; this viewpager is taking away the scroll event
          &lt;SwipeToRefreshLayout&gt;
              &lt;RecyclerView&gt; //this one is vertical
                  &lt;RecyclerView id="@id/rv1"&gt; //this one is horizontal
                  &lt;RecyclerView id="@id/rv2"&gt; //this one is working fine (different type)
              &lt;/RecyclerView&gt;
          &lt;/SwipeToRefreshLayout&gt;
      &lt;/ViewPager&gt;
  &lt;/ViewPager&gt;
  </code></pre>
  
  <p>Now the problem is that the second ViewPager is hijacking the scroll from Horizontal RV. There are 2 type of Horizontal RV (RV1 and RV2) in that vertical RV. But only one of them (RV1) is facing this problem. The second one (RV2) is working properly. 
  Also when I press and hold then the scrolling is working fine. And when RV1 is already scrolling and has not settle, then also scrolling works fine. 
  I have referred to other answers talking about setting nestedScrolling false. Nothing seems to be working.</p>
  
  <p><img src="https://i.stack.imgur.com/6fEdW.jpg" height="400" /></p>