UIViewKeyframeAnimation

[UIView animateKeyframesWithDuration:2.0 delay:0.0 options:UIViewKeyframeAnimationOptionCalculationModeLinear animations:^{    [UIView addKeyframeWithRelativeStartTime:0.0 relativeDuration:1.0/3.0 animations:^{        self.myImage.transform =CGAffineTransformMakeRotation(2.0*M_PI /3.0);    }];     [UIView addKeyframeWithRelativeStartTime:1.0/3.0 relativeDuration:1/3.0 animations:^{         self.myImage.transform =CGAffineTransformMakeRotation(4.0*M_PI /3.0);     }];     [UIView addKeyframeWithRelativeStartTime:2.0/3.0 relativeDuration:1.0/3.0 animations:^{         self.myImage.transform =CGAffineTransformMakeRotation(0.0);     }]; } completion:^(BOOL finished) {      }];