title: How to vertically center the items in the Android Toolbar View
body: <p>I have a <code>Toolbar</code>, and it seems no matter what I set the height to, the menu items I've added to it remain in the same spot vertically. I'm trying to make the <code>Toolbar</code> smaller, and because the items aren't moving, they get clipped when I make the <code>Toolbar</code> the height I want it to be. Is there any way to center the menu items vertically in the <code>Toolbar</code>?</p>
  
  <p><code>Toolbar</code> src:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
           android:layout_width="match_parent"
           android:layout_height="40dp"
           android:background="@color/red"&gt;
  
      &lt;include
          android:id="@+id/search_items"
          layout="@layout/search_items"
          android:visibility="gone"/&gt;
  
  &lt;/android.support.v7.widget.Toolbar&gt;
  </code></pre>
  
  <p>Doesn't work:</p>
  
  <ol>
  <li>setting android:gravity="center_vertical" for the <code>Toolbar</code></li>
  </ol>