PrefabUtility.RecordPrefabInstancePropertyModifications

参数

描述

指示记录对预制件实例所做的修改。

请注意，要让预制件实例记录更改，推荐的方法是使用 SerializedProperty 和 SerializedObject。这样可以让实例记录更改并自动包含撤消系统中的更改。

在对预制件的实例进行修改后调用此方法，以记录该实例的这些更改。如果不调用此方法，对实例所做的更改就会丢失。请注意，如果您不使用 SerializedProperty/SerializedObject，那么无论您是否调用此方法，对对象所做的更改都不会记录在撤消系统中。

另请参阅：SerializedObject SerializedProperty。

using UnityEngine;
using UnityEditor;
using UnityEditor.SceneManagement;

// The following Editor script doubles the scale of the selected GameObject,
// records the property modification and marks the Scene as dirty so that
// the user can save the Scene afterwards and keep the changes.
public class Example
{
    [MenuItem("Examples/Double Scale")]
    static void DoubleScale()
    {
        GameObject gameObject = Selection.activeGameObject;
        Undo.RecordObject(gameObject.transform, "Double scale");
        gameObject.transform.localScale *= 2;

        // Notice that if the call to RecordPrefabInstancePropertyModifications is not present,
        // all changes to scale will be lost when saving the Scene, and reopening the Scene
        // would revert the scale back to its previous value.
        PrefabUtility.RecordPrefabInstancePropertyModifications(gameObject.transform);

        // Optional step in order to save the Scene changes permanently.
        //EditorSceneManager.SaveScene(SceneManager.GetActiveScene());
    }

    // Disable the menu item if there is no Hierarchy GameObject selection.
    [MenuItem("Examples/Double Scale", true)]
    static bool ValidateDoubleScale()
    {
        return Selection.activeGameObject != null && !EditorUtility.IsPersistent(Selection.activeGameObject);
    }
}