[self.view sendSubviewToBack:menuViewController.view];

- (void)viewDidLoad
{
    [super viewDidLoad];

    UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(buttonPressed:)];
    UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];
    [self.navigationController.view addGestureRecognizer:panGestureRecognizer];
    self.navigationItem.leftBarButtonItem = barButtonItem;
}

- (void)buttonPressed:(id)sender {

    CGRect destination = self.navigationController.view.frame;

    if (destination.origin.x > 0) {
        destination.origin.x = 0;
    } else {
        destination.origin.x = 320;
    }

    [UIView animateWithDuration:0.25 animations:^{
        self.navigationController.view.frame = destination;
    }];
}

- (void)handlePan:(UIPanGestureRecognizer *)recognizer
{
    static CGPoint originalCenter;

    if (recognizer.state == UIGestureRecognizerStateBegan)
    {
        originalCenter = recognizer.view.center;

    } else if (recognizer.state == UIGestureRecognizerStateChanged)
    {
        CGPoint translation = [recognizer translationInView:self.view];

        recognizer.view.center = CGPointMake(originalCenter.x + translation.x, originalCenter.y);
    }
    else if (recognizer.state == UIGestureRecognizerStateEnded || recognizer.state == UIGestureRecognizerStateCancelled || recognizer.state == UIGestureRecognizerStateFailed)
    {
        if (recognizer.view.frame.origin.x < 160) {
            [UIView animateWithDuration:0.25 animations:^{
                recognizer.view.center = CGPointMake(384, 487.5);
            }];
        } else {
            [UIView animateWithDuration:0.25 animations:^{
                recognizer.view.center = CGPointMake(384 + 320, 487.5);
            }];
        }
    }
}

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event{
    CGPoint location=[self convertPoint:point toView:subview];
    return (location.x > 0 &&
            location.x < subview.frame.size.width &&
            location.y > 0 &&
            location.y < subview.frame.size.height);
}

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event{
    return [subview pointInside:
             [self convertPoint:point toView:subview] withEvent:event];

[mainView scrollRectToVisible:CGRectMake:(pixels,
                                          mainView.origin.y,
                                          mainView.size.width,
                                          mainView.size.height];