 
         self.mainView.transform = CGAffineTransformRotate(CGAffineTransformMakeScale(0.3, 0.3), CGFloat(rand()%RAND_MAX) / CGFloat(RAND_MAX) - 0.5)
 
-        UIView.animateWithDuration(0.5, delay: 0, usingSpringWithDamping: 0.5, initialSpringVelocity: 0.4, options: UIViewAnimationOptions.CurveEaseInOut, animations: { () -> Void in
+        UIView.animateWithDuration(0.8, delay: 0, usingSpringWithDamping: 0.5, initialSpringVelocity: 0.4, options: UIViewAnimationOptions.CurveEaseInOut, animations: { () -> Void in
             self.mainView.transform = CGAffineTransformIdentity
         }, completion: nil)
     }

        self.backgroundImageView.alpha = 0
        self.backgroundImageView.image = UIImage(named: "\(imageName)-blur")

        UIView.animateWithDuration(0.3, animations: { () -> Void in
            self.backgroundImageView.alpha = 1
        })


            self.animator.addBehavior(self.snapBehavior)

            let translation = panGestureRecognizer.translationInView(self.view)
            if translation.y > 250 || translation.y < -250 {
                self.animator.removeAllBehaviors()

                let gravity = UIGravityBehavior(items: [self.mainView])

                if translation.y > 250 {
                    gravity.gravityDirection = CGVectorMake(0, 20)
                } else {
                    gravity.gravityDirection = CGVectorMake(0, -20)
                }

                self.animator.addBehavior(gravity)

                self.mainView.removeGestureRecognizer(self.panGestureRecognizer)
