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easinganimation's Introduction

EasingAnimation

image

This class is used for Easing animation.

  • Easy to understand
  • You can use it to build your own animation

How to use

  • Import the header

and use like this:

 // 计算好起始值,结束值
 CGFloat oldValue = 0.f;
 CGFloat newValue = 1.f;
 
 // 关键帧动画
 CAKeyframeAnimation *animation = \
     [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation.z"];
 
 // 设置值
 [animation setValues:[YXEasing calculateFrameFromValue:oldValue
              toValue:newValue
                 func:ElasticEaseOut
           frameCount:500]];
 
 // 设置持续时间
 animation.duration  = 0.5f;
 
 // 每秒增加的角度(设定结果值,在提交动画之前执行)
 layer.transform = \
     CATransform3DMakeRotation(newValue, 0.0, 0.0, 1.0);
 
 // 提交动画
 [layer addAnimation:animation forKey:nil];

enjoy it :)

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