unity 获取 挂载有Content Size Fitter 组件的UI物体的 宽 和 高_unity content size fitter 高度

using FitMode = UnityEngine.UI.ContentSizeFitter.FitMode;

public static Vector2 GetContentSizeFitterPreferredSize(this RectTransform rect,ContentSizeFitter contentSizeFitter)
{
    LayoutRebuilder.ForceRebuildLayoutImmediate(rect);
    return new Vector2(HandleSelfFittingAlongAxis(0,rect,contentSizeFitter), HandleSelfFittingAlongAxis(1,rect,contentSizeFitter));
}
        
private static  float HandleSelfFittingAlongAxis(int axis,RectTransform rect,ContentSizeFitter contentSizeFitter)
{
    FitMode fitting = (axis == 0 ? contentSizeFitter.horizontalFit : contentSizeFitter.verticalFit);
    if (fitting == FitMode.MinSize)
    {
        return LayoutUtility.GetMinSize(rect, axis);
    }
    else
    {
        return LayoutUtility.GetPreferredSize(rect, axis);
    }
}