title: iOS UIButton Touch Drag Enter not working as expected?
body: <p>I'm trying to create a button which will trigger an action when the user's touch is brought anywhere into the button (whether they touch down inside, or drag from outside to inside the button). Essentially, I need to create a way to trigger the action whenever a finger is inside of the button. </p>
  
  <p>"Touch drag enter" combined with "touch down inside" sounds like it would do the job, but it seems to be working differently than what I need. </p>
  
  <p>Also, I'd prefer if it can be done in storyboard rather than hard code (like touchesBegan/moved), but if there is no other way that's okay.</p>