title: How to position below the lowest of two views in ConstraintLayout?
body: <p>I have two header views, <code>HeaderViewA</code> and <code>HeaderViewB</code>. These views can have any combination of visibility <code>visible</code> or <code>gone</code>.</p>
  
  <p>I need <code>BigView</code> to be positioned <strong>under</strong> the <strong>lowest</strong> of either <code>HeaderViewA</code>/<code>HeaderViewB</code>.</p>
  
  <p>Is this possible without nesting in <code>ConstraintLayout</code>?</p>
  
  <p><a href="https://i.stack.imgur.com/sjBwU.png" rel="noreferrer"><img src="https://i.stack.imgur.com/sjBwU.png" alt="enter image description here"></a></p>