gistfile1.m

  self.navigationController.transitioningDelegate = self;
  [self SH_setAnimationDuration:0.5 withPreparedTransitionBlock:^(UIView *containerView, UIViewController *fromVC, UIViewController *toVC, NSTimeInterval duration, id<SHViewControllerAnimatedTransitioning> transitionObject, SHTransitionAnimationCompletionBlock transitionDidComplete) {
    if (transitionObject.isReversed) {
      toVC.view.layer.affineTransform = CGAffineTransformMakeTranslation(-CGRectGetWidth(toVC.view.frame), 0);
      
    }
    else {
      toVC.view.layer.affineTransform = CGAffineTransformMakeTranslation(CGRectGetWidth(toVC.view.frame), 0);
      
    }
    
    
    [UIView animateWithDuration:duration delay:0 options:kNilOptions  animations:^{
      toVC.view.layer.affineTransform = CGAffineTransformIdentity;
      
      if(transitionObject.isReversed) {
        
        CGAffineTransform t = CGAffineTransformIdentity;
        t = CGAffineTransformMakeTranslation(CGRectGetWidth(fromVC.view.frame), 0);
        fromVC.view.layer.affineTransform = t;
        
        
      }
      else {
        CGAffineTransform t = CGAffineTransformIdentity;
        t = CGAffineTransformMakeTranslation(-CGRectGetWidth(fromVC.view.frame), 0);
        fromVC.view.layer.affineTransform = t;
        
      }
      
      
    } completion:^(BOOL finished) {
      toVC.view.layer.affineTransform = CGAffineTransformIdentity;
      fromVC.view.layer.affineTransform = CGAffineTransformIdentity;
      //      [toVC.view removeFromSuperview];
      //      [fromVC.view removeFromSuperview];
      transitionDidComplete();
    }];
    
  }];