Version: 2020.3
public static bool IsSubAsset (Object obj);
public static bool IsSubAsset (int instanceID);

参数

obj 要查询的资源对象。
instanceID 要查询的资源对象的实例 ID。

描述

资源是否构成了其他资源的一部分?

一些资源可能会构成其他资源的一部分(例如,程序化材质可能是材质包的一部分)。该函数表示资源是否以这种方式从属于其他资源。

using UnityEditor;
using UnityEngine;
public class Scriptable : ScriptableObject
{
}

public class AssetDatabaseExamples : MonoBehaviour { [MenuItem("AssetDatabase/Is Sub Asset Example")] static void IsSubAssetExample() { var materialAsset = new Material(Shader.Find("Standard")); //materialAsset is still in memory, therefore this will be False Debug.Log(AssetDatabase.IsSubAsset(materialAsset));

//Create a Scriptable object var scriptableAssetPath = "Assets/ScriptableObjects/NewObject.asset"; var mainAsset = ScriptableObject.CreateInstance<Scriptable>(); AssetDatabase.CreateAsset(mainAsset, scriptableAssetPath);

//Add the Material Asset to the Scriptable object, so that the Material becomes a Sub Asset of the Scriptable object AssetDatabase.AddObjectToAsset(materialAsset, scriptableAssetPath); AssetDatabase.SaveAssets();

//This will be True because the Material asset has been added to the mainAsset and is now a Sub Asset Debug.Log(AssetDatabase.IsSubAsset(materialAsset)); } }