DaPing/Assets/checkSize.cs

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

public class checkSize : MonoBehaviour
{
    public int lg = 1;
    // Update is called once per frame
    void Update()
    { this.GetComponent<RectTransform>().sizeDelta = new Vector2(this.GetComponentsInChildren<RawImage>().Length*690/ lg, 450);
    }
}