title: Equivalent of ListView.setEmptyView in RecyclerView
body: <p>In <code>RecyclerView</code>, I want to set an empty view to be shown when the adapter is empty. Is there an equivalent of <a href="http://developer.android.com/reference/android/widget/AdapterView.html#setEmptyView(android.view.View)" rel="noreferrer"><code>ListView.setEmptyView()</code></a>? </p>