#import #ifdef __cplusplus extern "C" { #endif extern NSString *kCAMediaTimingFunctionSpring; #ifdef __cplusplus } #endif @interface CALayer (AnimationUtils) - (void)animateAlphaFrom:(CGFloat)from to:(CGFloat)to duration:(NSTimeInterval)duration timingFunction:(NSString *)timingFunction removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion; - (void)animateScaleFrom:(CGFloat)from to:(CGFloat)to duration:(NSTimeInterval)duration timingFunction:(NSString *)timingFunction removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion; - (void)animateSpringScaleFrom:(CGFloat)from to:(CGFloat)to duration:(NSTimeInterval)duration removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion; - (void)animatePositionFrom:(CGPoint)from to:(CGPoint)to duration:(NSTimeInterval)duration timingFunction:(NSString *)timingFunction removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion; @end