Undo.RegisterChildrenOrderUndo

参数

描述

在撤消堆栈上存储对象子级顺序的副本。

如果执行撤消，则对象子级的顺序将恢复到记录的状态。

using UnityEngine;
using UnityEditor;

public class UndoExamples
{
    [MenuItem("Undo Examples/RegisterChildrenOrderUndo")]
    static void Example()
    {
        var parent = new GameObject("Parent");
        for (int childIndex = 0; childIndex < 5; childIndex += 1)
        {
            var child = new GameObject($"Child{childIndex}");
            child.transform.parent = parent.transform;
        }

        // Store the states of the parent object.
        Undo.RegisterChildrenOrderUndo(parent.transform, "Set as last sibling");
        parent.transform.GetChild(0).SetAsLastSibling();

        // If you choose "Edit->Undo Set as last sibling" from the main menu now, the order of the children will be restored.
    }
}