如何在Update()中为Unity VR应用程序设计平滑的UI滚动？

using UnityEngine;
using UnityEngine.UI;

public class SmoothScroll : MonoBehaviour
{
    public ScrollRect scrollRect;
    public float scrollSpeed = 5f; // 滚动速度
    private Vector2 targetPosition;

    void Start()
    {
        if (scrollRect != null)
        {
            targetPosition = scrollRect.content.anchoredPosition;
        }
    }

    void Update()
    {
        if (Input.GetKey(KeyCode.Space)) // 假设按下空格键开始滚动
        {
            targetPosition.y -= scrollSpeed * Time.deltaTime; // 向下滚动
        }

        // 平滑过渡到目标位置
        scrollRect.content.anchoredPosition = Vector2.Lerp(scrollRect.content.anchoredPosition, targetPosition, Time.deltaTime * 5f);
    }
}