Objective-C Animator based on http://netsplit.com/custom-ios-segues-transitions-and-animations-the-right-way

ELFFadeAndSlidePushAnimator.m

@implementation ELFFadeAndSlidePushAnimator

- (NSTimeInterval)transitionDuration:(id<UIViewControllerContextTransitioning>)transitionContext{
    return 0.35;
}

-(void) animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext{
 
    UIView * containerView = [transitionContext containerView];
    NSTimeInterval duration = [self transitionDuration:transitionContext];

    UIView *toView = [transitionContext viewForKey:UITransitionContextToViewKey];
    UIView *fromView = [transitionContext viewForKey:UITransitionContextFromViewKey];

    toView.alpha = 0.f;
    CGRect toFinalFrame = fromView.frame;
    CGRect toStartFrame = fromView.frame;
    toStartFrame.origin.x += 200;

    CGRect fromFinalFrame = fromView.frame;
    fromFinalFrame.origin.x -= 80;
    
    
    toView.frame = toStartFrame;
    
    [containerView addSubview:toView];

    [UIView animateWithDuration:duration animations:^{
        toView.alpha = 1.f;
        toView.frame = toFinalFrame;
        fromView.frame = fromFinalFrame;
        fromView.alpha = 0.f;
    } completion:^(BOOL finished) {
        BOOL cancelled = [transitionContext transitionWasCancelled];
        [transitionContext completeTransition:!cancelled];
    }];
}