图片360度不停旋转

方法1

 - (void)startAnimation

 {

     CGAffineTransform endAngle = CGAffineTransformMakeRotation(imageviewAngle * (M_PI / 180.0f));

    [UIView animateWithDuration:0.01 delay:0 options:UIViewAnimationOptionCurveLinear animations:^{

         imageView.transform = endAngle;

     } completion:^(BOOL finished) {

         angle += 10;

        [self startAnimation];

     }];

}

方法2

CABasicAnimation* rotationAnimation;  

rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];    

rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI * 2.0 ];       

[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];        

rotationAnimation.duration = 5;               

 rotationAnimation.repeatCount = 1000000;          //你可以设置到最大的整数值      

rotationAnimation.cumulative = NO;         

rotationAnimation.removedOnCompletion = NO;            

rotationAnimation.fillMode = kCAFillModeForwards;        

[imgV_imageview.layer addAnimation:rotationAnimation forKey:@"Rotation"];