CGContextRef context = UIGraphicsGetCurrentContext(); [UIView beginAnimations:nil context:context]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; [UIView setAnimationDuration:0.5]; [self.reply_arrow layer].transform = CATransform3DMakeRotation(3.14 * 1, 0, 0, 1);//화살표 그림이 돌아갑니다. [UIView commitAnimations];