title: Why does touchesBegan stop working when UIImageView in placed inside a UIScrollView?
body: <pre><code>UIView -&gt; UIImageView
  </code></pre>
  
  <p>I know I have things somewhat working ok since I can tap on my <code>UIImageView</code> and see an <code>NSLog()</code> statement in my <code>touchesBegan</code> method.</p>
  
  <p>. </p>
  
  <pre><code>UIView -&gt; UIScrollView -&gt; UIImageView
  </code></pre>
  
  <p>I drag that same <code>UIImageView</code> into a <code>UIScrollView</code> and <code>touchesBegan</code> no longer gets called when I tap on my <code>UIImageView</code>.  (I haven't changed anything else.  All the same connections, methods, and code remains unchanged.)</p>
  
  <p>Why does <code>touchesBegan</code> no longer work?  And what can I do to get it working again?</p>