using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class ParentSizeFitter : MonoBehaviour
{
    public float Spacing;//间隔
    public float Height;//RectTransform中的Height

    // Use this for initialization
    void Start()
    {
        for (int i = 0; i < transform.parent.childCount; i++)
        {
            if (i > 0 && transform.parent.GetChild(i) == transform)
            {//加入第二个item开始计算
                Spacing = transform.parent.GetComponent<VerticalLayoutGroup>().spacing;
                Height = GetComponent<RectTransform>().sizeDelta.y;

                float y = transform.parent.parent.parent.GetComponent<RectTransform>().sizeDelta.y;
                float y1 = transform.parent.parent.parent.GetComponent<RectTransform>().sizeDelta.y + Spacing + Height;

                transform.parent.parent.parent.GetComponent<RectTransform>().sizeDelta =
                    new Vector2(transform.parent.parent.parent.GetComponent<RectTransform>().sizeDelta.x,
                transform.parent.parent.parent.GetComponent<RectTransform>().sizeDelta.y + Spacing + Height);
            }
        }
    }

    // Update is called once per frame
    void Update()
    {

    }
}