UIView rotate Infinite 

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#import <QuartzCore/QuartzCore.h> 
- (void) spinAnimationOnView:(UIView*)view
                       duration:(CGFloat)duration
                      rotations:(CGFloat)rotations
                         repeat:(float)repeat; {
    CABasicAnimation *animation;
    animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
    animation.toValue = [NSNumber numberWithFloat: M_PI * 2.0 * rotations * duration ];
    animation.duration = duration;
    animation.cumulative = YES;
    animation.repeatCount = repeat;
    [view.layer addAnimation:animation forKey:@"rotationAnimation"];
}