视图翻转——镜像效果

- (void)mirrorFlip
{
    CALayer *layer = self.view.layer;
    CATransform3D rotationAndPerspectiveTrandForm = CATransform3DIdentity;
    rotationAndPerspectiveTrandForm.m34 = 1.0 / 500;
    rotationAndPerspectiveTrandForm = CATransform3DRotate(rotationAndPerspectiveTrandForm, M_PI, 1.0f, 0.0f, 0.0f);
    layer.transform = rotationAndPerspectiveTrandForm;
}