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A UIView subclass that fades away more the harder you press on it, and eventually disappears if you press hard enough. iOS 9 only, of course.
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| extension UIView { | |
| override public func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) { | |
| if let touch = touches.first { | |
| self.alpha = 1 - touch.force / touch.maximumPossibleForce | |
| if touch.force == touch.maximumPossibleForce { | |
| self.removeFromSuperview() | |
| } | |
| } | |
| } | |
| override public func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) { | |
| UIView.animateWithDuration(1, animations: { | |
| self.alpha = 1; | |
| }) | |
| } | |
| } |
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