title: Collapse recyclerview and show only last element
body: <p>I have a recyclerview with 3 rows maximum. This RV located on the top of my view. Below located container for my fragment. And I want to make only last element of my rv visible, when I will scroll content inside my fragment and show all elemenets of rv when I will on the top of my fragment content. How to do this?</p>
  
  <pre><code>&lt;LinearLayout
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:background="@color/white"
      android:orientation="vertical"&gt;
  
      &lt;android.support.v7.widget.RecyclerView
          android:id="@+id/my_recyclerView"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:paddingBottom="2dp"/&gt;
  
      &lt;android.support.design.widget.CoordinatorLayout
          android:id="@+id/container"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"/&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>