title: How to specify list item count in preview of recyclerview in Android Studio?
body: <p>The recyclerview layout is defined as </p>
  
  <pre><code>     &lt;android.support.v7.widget.RecyclerView
              android:layout_marginTop="15dp"
              android:id="@+id/call_detail_list"
              android:scrollbars="vertical"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              tools:listitem="@layout/call_item"
              /&gt;
  </code></pre>
  
  <p>In the preview, I can see the list items from the specified layout,
  but the number of item is 10. Is there any way that can be changed?</p>