I have an animation thats running fine in iOS 8.1 but in iOS 7.1 the button just appears where it is supposed to be without animation.
The button has leading, trailing and bottom constraints of 0, and height constraint of 80. The constraints are setup in the storyboard.
In the viewWillAppear method I change the bottom constraint to -80 so it isn't seen in the beginning.
When the user presses a button, the button should animate up, I run this method:
func animateCtaUp() { self.ctaView.layoutIfNeeded() UIView.animateWithDuration(0.5, delay: 0, options: .CurveEaseOut, animations: { self.ctaViewBottomConstraint.constant = 0 self.ctaView.layoutIfNeeded() }, completion: { finished in }) } 