AssetDatabase.Contains

描述

对象是否为资源？

如果对象是资源（对应于 Assets 文件夹的一个文件），则返回 true； 如果不是资源（例如，场景中的对象，或者在运行时创建的对象），则返回 false。

using UnityEditor;
using UnityEngine;

public class AssetDatabaseExamples : MonoBehaviour
{
    [MenuItem("AssetDatabase/ContainsExample")]
    static void ContainsExample()
    {
        //Material is created in memory and the Asset Database does not know about it
        var material = new Material(Shader.Find("Specular"));
        Debug.Log(AssetDatabase.Contains(material)); //Output will be false
        //Material is then saved to disk as an asset and therefore Asset Database knows that it exists
        AssetDatabase.CreateAsset(material, "Assets/Materials/MyMaterial.mat");
        Debug.Log(AssetDatabase.Contains(material)); //Output will be true
    }
}