Version: 2021.2

AssetDatabase.ReleaseCachedFileHandles

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public static void ReleaseCachedFileHandles ();

描述

调用此函数将释放 Unity 内部缓存的文件句柄。这允许安全地修改资源或元文件,从而避免潜在的文件共享 IO 错误。

using System.IO;
using UnityEditor;
using UnityEngine;

public class AssetDatabaseExamples : MonoBehaviour { //Replace meta file information [MenuItem("AssetDatabase/Release Cached File Handles Example")] public static void ReleaseCachedFileHandlesExample() { //Read and store meta information that will be replacing the meta file var metaContent = File.ReadAllText("NewMetaFile.txt");

//Get Material's meta file path var metaFilePath = AssetDatabase.GetTextMetaFilePathFromAssetPath("Assets/Material.mat");

//Release CachedFileHandles to avoid any I/O errors AssetDatabase.ReleaseCachedFileHandles();

//Replace the meta file with the contents of NewMetaFile.txt File.WriteAllText(metaFilePath, metaContent); AssetDatabase.Refresh(); } }