x轴旋转：
CABasicAnimation *theAnimation;
theAnimation=[CABasicAnimation animationWithKeyPath:@"transform.rotation.x"];
theAnimation.duration=;
theAnimation.removedOnCompletion = YES;
theAnimation.fromValue = [NSNumber numberWithFloat:];
theAnimation.toValue = [NSNumber numberWithFloat:3.1415926];
[yourView.layer addAnimation:theAnimation forKey:@"animateTransform"];
y轴旋转：
CABasicAnimation *theAnimation;
theAnimation=[CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];
theAnimation.duration=;
theAnimation.removedOnCompletion = YES;
theAnimation.fromValue = [NSNumber numberWithFloat:];
theAnimation.toValue = [NSNumber numberWithFloat:3.1415926];
[yourView.layer addAnimation:theAnimation forKey:@"animateTransform"];
z轴旋转：
CABasicAnimation *theAnimation;
theAnimation=[CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
theAnimation.duration=;
theAnimation.removedOnCompletion = YES;
theAnimation.fromValue = [NSNumber numberWithFloat:];
theAnimation.toValue = [NSNumber numberWithFloat:3.1415926];
[yourView.layer addAnimation:theAnimation forKey:@"animateTransform"];
以上缩放是以view的中心点为中心缩放的，如果需要自定义缩放点，可以设置卯点：
//中心点
[yourView.layer setAnchorPoint:CGPointMake(0.5, 0.5)];
//左上角
[yourView.layer setAnchorPoint:CGPointMake(, )];
//右下角
[yourView.layer setAnchorPoint:CGPointMake(, )];
可设参数：
theAnimation.repeatCount = 0;
theAnimation.autoreverses = NO;
旋转的另一种实现：（以下代码绕z轴旋转180度）
[self.topViewController.view.layer setAnchorPoint:CGPointMake(0.5, 0.5)];
[self.topViewController.view.layer setTransform:CATransform3DMakeRotation(, , , )];
[UIView animateWithDuration: delay:0.0f options:UIViewAnimationOptionAllowUserInteraction | UIViewAnimationCurveEaseIn animations:^{
[self.topViewController.view.layer setTransform:CATransform3DMakeRotation(3.1415926, , , )];
} completion:^(BOOL finished) {
}];