title: How to make button enabled during animation
body: <p>I'm using CAKeyframeAnimation. </p>
  
  <pre><code>-(IBAction)start:(id)sender {
  
      UIBezierPath *path = [UIBezierPath bezierPath];
      [path moveToPoint:CGPointMake(600, 150)];
      [path addLineToPoint:CGPointMake(600, 300)];
      [path addLineToPoint:CGPointMake(450, 300)];
      [path addLineToPoint:CGPointMake(450, 150)];
      [path addLineToPoint:CGPointMake(600, 150)];
  
      CAKeyframeAnimation *move = [CAKeyframeAnimation animationWithKeyPath:@"position"];
      move.path = path.CGPath;
      move.duration = 6.0f;
      move.repeatCount = 100;
  
      [testButton.layer addAnimation:move forKey:@"move"];
  </code></pre>
  
  <p>I need to make possible to use button while it moving.
  Also I tried use touches detection but its only working with button while it stop.
  Is it possible?
  Thanks.</p>