#import "ElementAlphaTransition.h" @implementation ElementAlphaTransition - (CATransform3D)animateWithProgress:(CGFloat)p { self.view.alpha = [RNNInterpolator fromFloat:self.from toFloat:self.to precent:p interpolation:self.interpolation]; return CATransform3DIdentity; } - (CGFloat)initialValue { return self.view.alpha; } @end