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YYWebImage框架

  • 1 UIImageView+YYWebImage.m
  CATransition *transition = [CATransition animation];
                            transition.duration = stage == YYWebImageStageFinished ? _YYWebImageFadeTime : _YYWebImageProgressiveFadeTime;
                            transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
                            transition.type = kCATransitionFade;
                            [self.layer addAnimation:transition forKey:_YYWebImageFadeAnimationKey];
  • 2 CALayer+YYWebImage.m
                            CATransition *transition = [CATransition animation];
                            transition.duration = stage == YYWebImageStageFinished ? _YYWebImageFadeTime : _YYWebImageProgressiveFadeTime;
                            transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
                            transition.type = kCATransitionFade;
                            [self addAnimation:transition forKey:_YYWebImageFadeAnimationKey];
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