title: iOS Detect Drag Stopped
body: <p>Super simple question that I'm stumped on:</p>
  
  <p>I'm using a <code>UISlider</code> that should detect when a user drags (but doesn't <em>tap</em>) the thumb of the slider. This works and the thumb can obviously be dragged, but I need to be notified when the drag event stops. Is there a control event that I'm not seeing that will allow me to differentiate the stop of a drag and the stop of a tap?</p>
  
  <p>Or is there some simple way of accomplishing this in the <code>touchesEnded:</code> method?</p>
  
  <p>Any help is appreciated. Thanks.</p>