title: Disable receiving touches from parent view on subview
body: <p>I have a <code>UIView</code> <code>parentView</code> which implements a <code>UITapGuestureRecognizer</code> and does something when tapped. <code>parentView</code> has a sub view called <code>childView</code> which also implements a <code>UITapGuestureRecognizer</code> and does something when tapped. </p>
  
  <p>There is an instance when I have to turn off the <code>childViews</code> <code>UITapGestureRecognizer</code> during an animation for a slight moment, and I noticed when it is turned off and I tap <code>childView</code>, the tap gets intercepted by <code>parentView</code>. Also, I have a toolbar attached to the top of this view that doesn't have any gesture recognizer attached to it, and it's touches get passed parentView (the buttons will barely work). I'm wondering is it possible to disable this without having a reference to the parents UITapGestureRecognizer?</p>
  
  <p>I've tried using the <code>exclusiveTouches</code> property of <code>UIView</code> set to yes and it doesn't work. Any suggestions would be appreciated.</p>