title: How to align controls vertically?
body: <p>I have several elements on screen in XML file</p>
  <pre class="lang-xml prettyprint-override"><code>&lt;layout:VerticalLayout xmlns:layout=&quot;sap.ui.layout&quot; xmlns=&quot;sap.m&quot;&gt;
    &lt;Input /&gt;
    &lt;Button /&gt;
    &lt;!-- ... --&gt;
  &lt;/layout:VerticalLayout&gt;
  </code></pre>
  <p>How can I add something like layout gravity or align the controls vertically? E.g. I want the elements in the center of the screen.</p>