/** * showAnimationFlash */+ (void)showAnimationFlashWithView:(UIView *)animationView duration:(CGFloat)duration { CAKeyframeAnimation *popAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform"]; if (!duration) { popAnimation.duration = .8; } popAnimation.duration = duration; popAnimation.values = @[[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.0f, 0.01f, 1.0f)],[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.1f, 1.1, 1.0f)],[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.9f, 0.9, 1.0f)],[NSValue valueWithCATransform3D:CATransform3DIdentity]]; popAnimation.keyTimes = @[@0.2f,@0.5f,@0.75f,@1.0f]; popAnimation.timingFunctions = @[[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut],[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]]; [animationView.layer addAnimation:popAnimation forKey:nil];}原文：http://www.cnblogs.com/wanghuaijun/p/5339875.html