title: UIView Animations Not Working Properly?
body: <p>I'm currently experimenting with UIView animations in Swift. Im trying to resize a button from  (309, 452, 0, 0) to (400, 400, 150, 150). I have the code:</p>
  
  <pre><code>override func viewDidAppear(animated: Bool) {
      UIView.animateWithDuration(0.5, animations: {
          self.start.bounds = CGRectMake(400, 400, 150, 150)
          println(self.start.bounds);
      });
  
  }
  </code></pre>
  
  <p>However, the button just suddenly appears from nothing (no transition) to 150x150 and transitions all the way to the top left corner (0,0). Even though the print statement prints out (309, 452, 150, 150) in the console, it does not to have that frame. I have also tried changing self.start.bounds to self.start.frame, but that doesn't do anything different.</p>