PrefabUtility.LoadPrefabContents

参数

返回

GameObject 已加载内容的根。

描述

将给定路径上的预制件资源加载到孤立场景中，并返回预制件的根游戏对象。

可以使用它来获取预制件的内容并直接予以修改，而不是遍历预制件的实例。这可用于批处理操作。

在修改预制件后，必须使用 SaveAsPrefabAsset 将其写回，然后调用 UnloadPrefabContents，从而从内存中释放预制件和隔离场景。

using UnityEngine;
using UnityEditor;

public class Example
{
    [MenuItem("Examples/Add BoxCollider to Prefab Asset")]
    static void AddBoxColliderToPrefab()
    {
        // Get the Prefab Asset root GameObject and its asset path.
        GameObject assetRoot = Selection.activeObject as GameObject;
        string assetPath = AssetDatabase.GetAssetPath(assetRoot);

        // Load the contents of the Prefab Asset.
        GameObject contentsRoot = PrefabUtility.LoadPrefabContents(assetPath);

        // Modify Prefab contents.
        contentsRoot.AddComponent<BoxCollider>();

        // Save contents back to Prefab Asset and unload contents.
        PrefabUtility.SaveAsPrefabAsset(contentsRoot, assetPath);
        PrefabUtility.UnloadPrefabContents(contentsRoot);
    }

    [MenuItem("Examples/Add BoxCollider to Prefab Asset", true)]
    static bool ValidateAddBoxColliderToPrefab()
    {
        GameObject go = Selection.activeObject as GameObject;
        if (go == null)
            return false;

        return PrefabUtility.IsPartOfPrefabAsset(go);
    }
}