// LGSemiModalNavViewController.m

- (id<UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented
                                                                  presentingController:(UIViewController *)presenting
                                                                      sourceController:(UIViewController *)source {
    return [self transitionPresenting:YES];
}

- (id<UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed {
    return [self transitionPresenting:NO];
}

-(LGSemiModalTransition*)transitionPresenting:(BOOL)presenting{
    LGSemiModalTransition *animator = [LGSemiModalTransition new];
    animator.presenting = presenting;
    animator.tapDismissEnabled = _tapDismissEnabled;
    animator.animationSpeed = _animationSpeed;
    animator.backgroundShadeColor = _backgroundShadeColor;
    animator.scaleTransform = _scaleTransform;
    animator.springDamping = _springDamping;
    animator.springVelocity = _springVelocity;
    animator.backgroundShadeAlpha = _backgroundShadeAlpha;
    return animator;
}

    //This is an example.
    LGViewController *lgVC = [[LGViewController alloc]initWithFormat:LGViewControllerFormatGoBack];

    //This is the nav controller
    LGSemiModalNavViewController *semiModal = [[LGSemiModalNavViewController alloc]initWithRootViewController:lgVC];
    //Make sure to set a height on the view controller here.
    semiModal.view.frame = CGRectMake(0, 0, self.view.frame.size.width, 400);

    //Selected customization properties, see more in the header of the LGSemiModalNavViewController
    semiModal.backgroundShadeColor = [UIColor blackColor];
    semiModal.animationSpeed = 0.35f;
    semiModal.tapDismissEnabled = YES;
    semiModal.backgroundShadeAlpha = 0.4;
    semiModal.scaleTransform = CGAffineTransformMakeScale(.94, .94);

    [self presentViewController:semiModal animated:YES completion:nil];