如何沿着路径制作动画

Question

如何沿着路径动画制作UIImageView？

有没有人知道任何教程通过这个？

Answer 1

CAKayframeAnimation可以这样做。

CGMutablePathRef path = CGPathCreateMutable(); 
//your code to configure the path 

//configure the animation 
CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"position"]; 
[animation setPath:path]; 
[animation setDuration:3.0]; 
CGPathRelease(path); 
[self.yourImageView.layer addAnimation:animation forKey:NULL];