func scrollViewDidScroll(_ scrollView: UIScrollView) {
        let yOffset = scrollView.contentOffset.y

        // Calculate the difference between the current and previous offset
        let deltaY = yOffset - previousScrollViewYOffset
        previousScrollViewYOffset = yOffset

        // Calculate new navigation bar height
        var newNavBarHeight = navigationBar.frame.size.height - deltaY

        // Ensure the navigation bar height doesn't go below a certain threshold
        let minNavBarHeight: CGFloat = 44 // Adjust as needed
        newNavBarHeight = max(minNavBarHeight, newNavBarHeight)

        // Ensure the navigation bar height doesn't exceed its original height
        let maxNavBarHeight = navigationController?.navigationBar.frame.size.height ?? 0
        newNavBarHeight = min(maxNavBarHeight, newNavBarHeight)

        // Update the navigation bar's frame
        navigationBar.frame = CGRect(x: 0, y: 0, width: view.frame.size.width, height: newNavBarHeight)
    }