XiuXianGame/Assets/Scripts/GameUI/UISpiritLoader.cs

using UnityEngine;
using UnityEngine.UI;

public class UISpiritLoader : MonoBehaviour
{
    public bool Ratio;


    public MyImage Image;

    private Vector2 ImageSizeData;
    private Vector2 LoaderSizeData;


    [ContextMenu("SetLoaderSpirit")]
    public void SetLoaderSpirit()
    {
        //Image.SetNativeSize();
        Image.GetComponent<RectTransform>().localScale = new Vector3(1, 1, 1);
        LoaderSizeData = GetComponent<RectTransform>().sizeDelta;
        ImageSizeData = Image.GetComponent<RectTransform>().sizeDelta;
        if (Ratio)
        {
            if (LoaderSizeData.x > LoaderSizeData.y)
            {
                float ys = LoaderSizeData.y / ImageSizeData.y;
                Image.GetComponent<RectTransform>().localScale = new Vector3(ys, ys, ys);
            }
            else
            {
                float xs = LoaderSizeData.x / ImageSizeData.x;
                Image.GetComponent<RectTransform>().localScale = new Vector3(xs, xs, xs);
            }

            Image.GetComponent<RectTransform>().localPosition = Vector3.zero;
        }
    }
}