ios 图片旋转动画

 

 

-(void)loopBasecAnimation

{

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

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

    rotationAnimation.duration = 0.2;

    rotationAnimation.cumulative = YES;

    rotationAnimation.repeatCount =ULLONG_MAX;

    

    [failedTipImageView.layer addAnimation:rotationAnimation forKey:@"rotationAnimation"];

    

}

 

-(void)stopLoopAnimation

{

    [failedTipImageView.layer removeAllAnimations];

}