CABasicAnimation
* rotationAnimation;
rotationAnimation = [
CABasicAnimation
animationWithKeyPath:
@"transform.rotation"
];
rotationAnimation.
toValue = [
NSNumber
numberWithFloat:
M_PI *
2.0
];
rotationAnimation.
duration =
2
;
rotationAnimation.
cumulative =
YES
;
rotationAnimation.
repeatCount =
MAXFLOAT
;
[
self
.
helpButton
.
layer
addAnimation
:rotationAnimation
forKey
:
@"rotationAnimation"
];