/// <summary>
/// 父物体改变前
/// </summary>
protected override void OnBeforeTransformParentChanged()
{
BrandoUIGraphicRegistry.UnregisterGraphicForCanvas(canvas, this);
LayoutRebuilder.MarkLayoutForRebuild(rectTransform);
}
protected override void OnDisable()
{
m_Tracker.Clear();
LayoutRebuilder.MarkLayoutForRebuild(rectTransform);
base.OnDisable();
}