DaPing/Assets/UIBG.cs

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

public class UIBG : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        float bl = (float)Screen.width / 5760f;
        float bl2 = (float)Screen.height / 1620f;
        if(bl>bl2)
        {
            this.transform.localScale = new Vector3(bl2,bl2,bl2);
        }else
        {
            this.transform.localScale = new Vector3(bl, bl, bl);

        }
    }
}