Unity——当ui挂载Content Size Fitter组件后通过Rect获取的UI物体的 width 和 height_ui上挂载content size fitter组件后用rect获取的ui的width和height

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);
	}
}