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POAnimating a CAShapeLayer while moving its parent UIView via the center property
 

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    <p><strong>Update:</strong> </p> <p>There is no problem here. Turns out I was re-adding the animation every time I moved the point. Was else where in the code and I just totally glossed over it. Please ignore this question.</p> <p><strong>end update</strong></p> <p>I have a UIView which is just acting as a container for a UIImageView and a CAShaperLayer. The shape layer is drawing a circle and I have added a path animation to that shape layer to make it pulse. I want to be able to pulse the circle and move the container view at the same time using the center property of the UIView. However, when I set the center property on the container UIView, the pulse animation restarts from it's beginning no matter where it is at in it's animation. </p> <p>How do I prevent the pulse animation from restarting?</p> <p>Pulse animation:</p> <pre><code>CGRect startRect = CGRectMake(-10 + (self.bounds.size.width / 2), -10 + (self.bounds.size.height / 2), 20, 20); CGMutablePathRef fromPath = CGPathCreateMutable(); CGPathAddEllipseInRect(fromPath, NULL, startRect); CGRect endRect = CGRectMake(-20 + (self.bounds.size.width / 2), -20 + (self.bounds.size.height / 2), 40, 40); CGMutablePathRef toPath = CGPathCreateMutable(); CGPathAddEllipseInRect(toPath, NULL, endRect); CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"path"]; animation.fromValue = (id)fromPath; animation.toValue = (id)toPath; CGPathRelease(fromPath); CGPathRelease(toPath); animation.duration = 2.0f; animation.repeatCount = HUGE_VALF; [self.myCircleLayer addAnimation:animation forKey:self.pathAnimationKey]; </code></pre> <p>I move the container view by doing:</p> <pre><code>self.myContainerView.center = newPoint; </code></pre>
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