iPhone - How to make a circle path for a CAKeyframeAnimation?

Question

I\'m trying to make an key frame animation that lets a image view fly around a circle. I\'m using CGPathAddCurveToPoint to make the key frame points. The proble

Answer 1

Would this do the trick?

  CAKeyframeAnimation* circlePathAnimation = [CAKeyframeAnimation animationWithKeyPath:@"center"];

  CGMutablePathRef circularPath = CGPathCreateMutable();
  CGRect pathRect = ...; // some rect you define. A circle has equal width/height; radius is half the values you specify here
  CGPathAddEllipseInRect(circularPath, NULL, pathRect);
  spinAnimation.path = circularPath;
  CGPathRelease(circularPath);

You will notice the keypath of the animation is the center property of the UIView you wish to make fly around in a circle.