小松教你手游开发unity系统模块开发Unity5.5.2UI打包AssetBundle

Posted 2020-10-27

之前已经有几篇文章写打包AssetBundle，但毕竟没有实际在项目中写过都写的比较浅。

刚好最近项目更新Unity5.5.2就顺便由我来更新ui打包流程

这里就把这次的经验写一下

这里还是稍微解释一下打包的基本目的：

打包ui就是把你做的界面打包出来成assetbundle包，讲道理你就把每个界面打成bundle包在游戏中你就可以直接加载来用，但是这样子的话你的每个bundle包就会非常的大，为什么呢，是因为这样子每个界面的bundle包里都包含这个界面用到的字体，贴图atlas，texture，shader还可以有你自己使用的动态组件。

这样子你的同一份资源都复制了很多份出来。

当然不能这样子做

所以我们就需要把这些atlas，font给剥离开来独立打包

不过新的打包方式让我们不用再手动剥离开来这些东西，也就是没有了剥离之后要重新引用的烦恼。

所要做的事就是把需要打包的东西改一改它的AssetBudnle名再一起build就好了

总的来说，就是把一个ui界面的下的atlas，font，texture，component记录下来，

通过修改这个ui.prefab，atlas，font，texture，compoent的预制件的bundle名，最后调一下打包函数就可以了

（有的项目texutre和shader是有自己写的管理类来加载，需要把引用置空的，这时候就需要实例ui.prefab，并把引用赋空，拷贝一份到另外一个文件夹中）

上一篇ui打包文章

http://blog.csdn.net/chrisfxs/article/details/55046339

而这次的流程是

1.清理数据，建立文件夹

2.遍历所有文件夹下的ui界面prefab

3.遍历所有prefab下的compoent（动态组件）

4.找出所有的资源（如atlas，font）用个list记录下来

5.修改这些资源和这个ui.prefab的assetbundle名

6.build

补充一点！

游戏加载assetbundle的时候要先加载atlas，font这些资源，最后加载ui资源

这样才能保证引用没有丢失

下面是代码

//#if UNITY_5_MODE
using UnityEngine;
using UnityEditor;
using System.Collections.Generic;
using UnityEditor.SceneManagement;
using UnityEngine.SceneManagement;
using System.IO;

public class BuildAssetbundle
{
    public static string m_destFileName = "Assetbundle";

#if UNITY_android
    public static string PlatformExtension = ".android";
    public static string Extension = ".x.android";
    public static BuildTarget Target = BuildTarget.Android;
    public static string ASSETBUNDLE_PATH = Application.dataPath + "/../AndroidResources/StreamingAssets";
    public static string FULL_ASSETBUNDLE_PATH = ASSETBUNDLE_PATH + "/" + m_destFileName;
#elif UNITY_ios
    public static string PlatformExtension = ".ios";
    public static string Extension  = ".x.ios";
    public static BuildTarget Target = BuildTarget.iOS;
    public static string ASSETBUNDLE_PATH = Application.dataPath + "/../IosResources/StreamingAssets";
#endif

#if BUILD_UI
    //需要打包的资源
    public static List<UIFont> fontList = new List<UIFont>();
    public static List<UIAtlas> atlasList = new List<UIAtlas>();
    public static List<GameObject> componentList = new List<GameObject>();
    public static List<GameObject> panelList = new List<GameObject>();

    public static void BuildOnePanel()
    {
        ClearAllBundleName();
        CleanTempData();

        GameObject[] selectGameObjects = Selection.gameObjects;
        UnityEngine.Object selectFloder = Selection.activeObject;
        if (selectGameObjects != null && selectGameObjects.Length != 0)
        {
            foreach (GameObject selGb in selectGameObjects)
            {
                string selGbPath = AssetDatabase.GetAssetPath(selGb);
                if (selGbPath.StartsWith(BuildUtils.PANEL_ASSET_PATH))
                {
                    if (selGbPath.EndsWith(BuildUtils.PREFAB_SUFFIX))
                    {
                        GameObject uiInstance = PrefabUtility.InstantiatePrefab(selGb) as GameObject;
                        CheckComponent(uiInstance);
                        FindRefrence(uiInstance.transform);

                        string prefabPath = BuildUtils.TEMP_PANEL_PREFAB_PATH + "/" + uiInstance.name + BuildUtils.PREFAB_SUFFIX;
                        PrefabUtility.CreatePrefab(prefabPath, uiInstance);
                        GameObject prefabAsset = AssetDatabase.LoadAssetAtPath(prefabPath, typeof(GameObject)) as GameObject;
                        panelList.Add(prefabAsset);

                        UnityEngine.Object.DestroyImmediate(uiInstance);
                    }
                    else
                    {
                        Debug.LogWarning("选择的资源 " + selGb.name + " 不是界面Prefab!");
                    }
                }
                else
                {
                    Debug.LogWarning("只能打包放在 " + BuildUtils.PANEL_ASSET_PATH + " 下面的界面Prefab");
                }
            }
            StartBuildGameObjects();

            BuildUtils.DeleteFileWithSuffixs(ASSETBUNDLE_PATH, new string[]{".manifest",""}, true, false);
            ShowBundleFolder();
            EditorUtility.DisplayDialog("提示", "打包完成！", "确定");
        }
        else
        {
            Debug.LogWarning("只能对 " + BuildUtils.PANEL_ASSET_PATH + " 下面的UI使用！");
        }
    }

    public static void BuildAllPanel(bool hint)
    {
        ClearAllBundleName();

        if (!hint || EditorUtility.DisplayDialog("提示", "确定打包 " + BuildUtils.PANEL_ASSET_PATH + " 下所有界面?", "确定", "取消"))
        {
            CleanTempData();

            string[] files = Directory.GetFiles(BuildUtils.PANEL_ASSET_PATH);
            if (files.Length != 0)
            {
                foreach (string file in files)
                {
                    if (file.EndsWith(BuildUtils.PREFAB_SUFFIX))
                    {
                        GameObject uiInstance = PrefabUtility.InstantiatePrefab(AssetDatabase.LoadAssetAtPath<UnityEngine.Object>(file)) as GameObject;
                        string ui_panel_prefab_name = Path.GetFileNameWithoutExtension(file);
                        CheckComponent(uiInstance);
                        FindRefrence(uiInstance.transform);

                        string prefabPath = BuildUtils.TEMP_PANEL_PREFAB_PATH + "/" + uiInstance.name + BuildUtils.PREFAB_SUFFIX;
                        PrefabUtility.CreatePrefab(prefabPath, uiInstance);
                        GameObject prefabAsset = AssetDatabase.LoadAssetAtPath(prefabPath, typeof(GameObject)) as GameObject;
                        panelList.Add(prefabAsset);

                        UnityEngine.Object.DestroyImmediate(uiInstance);
                    }
                }

                StartBuildGameObjects();
                BuildUtils.DeleteFileWithSuffixs(ASSETBUNDLE_PATH, new string[]{".manifest",""}, true, false);
            }
            if (hint)
            {
                ShowBundleFolder();
                EditorUtility.DisplayDialog("提示", BuildUtils.PANEL_ASSET_PATH + " 下的界面界面全部打包完成！", "确定");
            }
        }
    }

    /// <summary>
    /// 对每一个要打包的Prefab保存组件信息，找出Atlas、Font等//
    /// </summary>
    /// <param name="com">COM.</param>
    static void FindRefrence(Transform com)
    {
        PrefabHierarchyInfo info = com.gameObject.AddComponent<PrefabHierarchyInfo>();
        info.transforms = com.gameObject.GetComponentsInChildren<Transform>(true);
        info.myuianchors = com.gameObject.GetComponentsInChildren<MyUIAnchor>(true);
        UILabel[] uilabels = com.gameObject.GetComponentsInChildren<UILabel>(true);
        UISprite[] uisprites = com.gameObject.GetComponentsInChildren<UISprite>(true);
        UITexture[] uitextures = com.gameObject.GetComponentsInChildren<UITexture>(true);

        foreach (UILabel lab in uilabels)
        {
            UIFont font = lab.bitmapFont;
            if (font == null)
            {
                Debug.LogWarning(com.gameObject.name + " 下出现未使用UIFont或者没有知道字体的UIlabel, " + lab.gameObject.name);
                continue;
            }

            string uifontPath = AssetDatabase.GetAssetPath(font);
            if (!uifontPath.StartsWith(BuildUtils.UIFONT_PREFAB_PATH))
                Debug.LogWarning("使用了没有放在" + BuildUtils.UIFONT_PREFAB_PATH + " 目录下的UIFont:" + uifontPath);

            if (!fontList.Contains(font))
            {
                fontList.Add(font);
            }

            lab.text = "";
        }
        foreach (UISprite sp in uisprites)
        {
            UIAtlas atlas = sp.atlas;

            if (atlas == null)
                continue;

            string atlasPath = AssetDatabase.GetAssetPath(atlas);
            if (!atlasPath.StartsWith(BuildUtils.ATLAS_PREFAB_PATH))
                Debug.LogWarning("使用了未放在" + BuildUtils.ATLAS_PREFAB_PATH + "目录下的Atlas:" + atlasPath);

            sp.RecordAtlasName = atlas.name;

            if (!atlasList.Contains(atlas))
                atlasList.Add(atlas);
        }

        foreach (UITexture t in uitextures)
        {
            t.mainTexture = null;
            t.shader = null;
        }

        com.parent = null;
    }

    /// <summary>
    /// 对找出的需要打包资源打包//
    /// </summary>
    private static void StartBuildGameObjects()
    {
        EditorUtility.UnloadUnusedAssetsImmediate();

        AssetbundleCommonFun.SetAssetBundlesName<UIFont>(fontList, Extension, false);
        AssetbundleCommonFun.SetAssetBundlesName<UIAtlas>(atlasList, Extension, false);
        AssetbundleCommonFun.SetAssetBundlesName<GameObject>(componentList, Extension, false);
        AssetbundleCommonFun.SetAssetBundlesName<GameObject>(panelList, Extension, false);

        AssetDatabase.Refresh();
        BuildAll();

        CleanTempData();
        ClearAllBundleName();

    }

    //在一次打包过程中，出现过的Component，检测多个Panel里面的（DynamicComponent）重名//
    static List<string> componentNames = new List<string>();
    //支持无限深度的Component嵌套
    static void CheckComponent(GameObject go)
    {
        string prefabPath = "";
        Dictionary<uint, List<Transform>> allComponent = new Dictionary<uint, List<Transform>>();
        FindComponents(go.transform, 0, ref allComponent);
        uint[] indexs = new uint[allComponent.Keys.Count];
        allComponent.Keys.CopyTo(indexs, 0);
        System.Array.Sort(indexs);
        for (int i = indexs.Length - 1; i >= 0; i--)
        {
            foreach (Transform com in allComponent[indexs[i]])
            {
                FindRefrence(com);

                prefabPath = BuildUtils.TEMP_COMPONENT_PREFAB_PATH + "/" + com.name + BuildUtils.PREFAB_SUFFIX;
                PrefabUtility.CreatePrefab(prefabPath, com.gameObject);
                GameObject prefabAsset = AssetDatabase.LoadAssetAtPath(prefabPath, typeof(GameObject)) as GameObject;
                componentList.Add(prefabAsset);
            }
        }

        for (int i = indexs.Length - 1; i >= 0; i--)
        {
            foreach (Transform com in allComponent[indexs[i]])
            {
                UnityEngine.Object.DestroyImmediate(com.gameObject);

            }
        }
    }

    /// <summary>
    /// 递归寻找动态组件//
    /// </summary>
    /// <param name="tf">Tf.</param>
    /// <param name="index">Index.</param>
    /// <param name="dict">Dict.</param>
    static void FindComponents(Transform tf, uint index, ref Dictionary<uint, List<Transform>> dict)
    {
        if (tf.name.Contains("(DynamicComponent)"))
        {
            foreach (Transform sonTf in tf)
            {
                if (componentNames.Contains(sonTf.name))
                {
                    UnityEngine.Debug.LogError(tf.name + " 子物体中出现同名的动态组件 " + sonTf.name);
                    UnityEngine.Object.DestroyImmediate(sonTf);
                    continue;
                }
                if (!sonTf.name.Contains("(DynamicComponent)"))
                {
                    componentNames.Add(sonTf.name);
                    if (!dict.ContainsKey(index))
                        dict.Add(index, new List<Transform>());
                    dict[index].Add(sonTf);
                    if (sonTf.childCount > 0)
                        FindComponents(sonTf, index + 1, ref dict);
                }
                else
                {
                    if (sonTf.childCount > 0)
                        FindComponents(sonTf, index + 1, ref dict);
                }
            }
        }
        else {
            foreach (Transform sonTf in tf)
            {
                if (sonTf.childCount > 0)
                    FindComponents(sonTf, index + 1, ref dict);
            }
        }
    }

    static void CleanTempData()
    {
        fontList.Clear();
        atlasList.Clear();
        componentList.Clear();
        componentNames.Clear();
    }
#endif

    #region tools
    static void BuildAll()
    {
        EditorUtility.ClearProgressBar();

        AssetbundleCommonFun.CreatePath(ASSETBUNDLE_PATH + "/Assetbundle");
        BuildPipeline.BuildAssetBundles(ASSETBUNDLE_PATH + "/Assetbundle", BuildAssetBundleOptions.ChunkBasedCompression, Target);

    }

    //[MenuItem("[AssetBundles]/Build Bundles Independent")]
    static void BuildBundlesIndependent()
    {
        List<Object> list = new List<Object>();
        list.AddRange(Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets));

        int count = list.Count;
        string temp_path;
        List<string> pathList = new List<string>();

        foreach (Object o in list)
        {
            if (o == null)
            {
                continue;
            }

            AssetbundleCommonFun.ChangeTextureFormat(o);
            temp_path = AssetDatabase.GetAssetPath(o);
            if (!pathList.Contains(temp_path))
            {
                pathList.Add(temp_path);
            }
        }

        BuildIndependent(pathList);
    }

    static void BuildIndependent(List<string> pathList)
    {
        string OutPutFolder = ASSETBUNDLE_PATH + "/Assetbundle";
        AssetbundleCommonFun.CreatePath(OutPutFolder);
        AssetBundleBuild temp_build;
        List<AssetBundleBuild> abbs = new List<AssetBundleBuild>();

        int count = pathList.Count;
        int index = 0;

        foreach (string item in pathList)
        {
            if (item == null)
            {
                index++;
                continue;
            }

            EditorUtility.DisplayProgressBar("Build Bundles Independent", item, (float)index / (float)count);

            if (!string.IsNullOrEmpty(item))
            {
                temp_build = new AssetBundleBuild();
                temp_build.assetBundleName = AssetbundleCommonFun.GetBundleName(item, Extension);
                temp_build.assetNames = new string[] { item };
                abbs.Add(temp_build);
            }

            index++;
        }

        BuildPipeline.BuildAssetBundles(OutPutFolder, abbs.ToArray(), BuildAssetBundleOptions.ChunkBasedCompression, Target);

        string mainConfigPath = OutPutFolder + "/" + Path.GetFileName(OutPutFolder);
        if (File.Exists(mainConfigPath))
        {
            File.Delete(mainConfigPath);
        }

        AssetbundleCommonFun.ExportModifyFilesInfo(ASSETBUNDLE_PATH + "/Assetbundle");

        EditorUtility.ClearProgressBar();
        EditorUtility.DisplayDialog("提示", "操作结束", "OK");
    }

    //[@MenuItem("[AssetBundles]/Set Name for self")]     此功能不开放
    static void SetNameForSelf()
    {
        List<Object> list = new List<Object>();
        list.AddRange(Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets));
        int count = list.Count;
        int index = 0;
        foreach (Object o in list)
        {
            if (o == null)
            {
                index++;
                continue;
            }

            string path = AssetDatabase.GetAssetPath(o);

            AssetbundleCommonFun.SetBundleName(path, Extension);

            index++;
            EditorUtility.DisplayProgressBar("Set Assetbundle Name", path, (float)index / (float)count);
        }

        EditorUtility.ClearProgressBar();
        EditorUtility.DisplayDialog("提示", "操作结束", "OK");
    }

    //[@MenuItem("[AssetBundles]/Set Assetbundle Name")]     此功能不开放
    static void SetName()
    {
        List<Object> list = new List<Object>();
        list.AddRange(Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets));
        int count = list.Count;
        int index = 0;
        foreach (Object o in list)
        {
            if (o == null)
            {
                index++;
                continue;
            }

            string path = AssetDatabase.GetAssetPath(o);

            AssetbundleCommonFun.SetBundleName(path, Extension);

            index++;
            EditorUtility.DisplayProgressBar("Set Assetbundle Name", path, (float)index / (float)count);
        }

        EditorUtility.ClearProgressBar();
        //EditorUtility.DisplayDialog("提示", "操作结束", "OK");
    }

    //[@MenuItem("[AssetBundles]/Clear Selected AssetbundleName")]
    static void ClearName()
    {
        List<Object> list = new List<Object>();
        list.AddRange(Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets));
        int count = list.Count;
        int index = 0;
        foreach (Object o in list)
        {
            if (o == null)
            {
                index++;
                continue;
            }

            string path = AssetDatabase.GetAssetPath(o);

            AssetbundleCommonFun.SetBundleName(path, "", true);

            //AssetbundleCommonFun.SetDependenciesName(path, "", false, true);

            index++;
            EditorUtility.DisplayProgressBar("Clear Assetbundle Name", path, (float)index / (float)count);
        }

        EditorUtility.ClearProgressBar();
        //EditorUtility.DisplayDialog("提示", "操作结束", "OK");
    }

    //[@MenuItem("[AssetBundles]/Clear All AssetbundleNames")]
    static void ClearAllBundleName()
    {
        string[] allBundleNames = AssetDatabase.GetAllAssetBundleNames();
        List<string> hasBundleNameAssets = new List<string>();
        foreach (string n in allBundleNames)
        {
            foreach (string p in AssetDatabase.GetAssetPathsFromAssetBundle(n))
            {
                hasBundleNameAssets.Add(p);
            }
        }
        float idx = 0f;
        foreach (string asset in hasBundleNameAssets)
        {
            AssetbundleCommonFun.SetBundleName(asset, "", true);
            EditorUtility.DisplayProgressBar("清除所有Bundle名称", "当前处理文件:" + Path.GetFileName(asset), idx++ / hasBundleNameAssets.Count);
        }
        EditorUtility.ClearProgressBar();
        AssetDatabase.RemoveUnusedAssetBundleNames();
        AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);
        //EditorUtility.DisplayDialog("提示", "操作结束", "OK");
    }

    /// <summary>
    /// 显示Bundle文件夹//
    /// </summary>
    static void ShowBundleFolder()
    {
        string path = FULL_ASSETBUNDLE_PATH +"/assets";
        path = path.Replace("/", "\\");
        Debug.Log(path);
        System.Diagnostics.Process.Start("explorer.exe", "/select," + path);
    }
    #endregion
}
//#endif

using UnityEngine;
using UnityEditor;
using System.IO;
using System.Collections.Generic;
using System.Text;

public class AssetbundleCommonFun
{
#if UNITY_ANDROID
    private static string strLocalFileName = "Android_LocalFilesInfo.asset";
#elif UNITY_IOS
    private static string strLocalFileName = "Ios_LocalFilesInfo.asset";
#endif

    private static List<string> componentList = new List<string>();
    static AssetImporter m_importer = null;

    public static void ClearAllBundleName()
    {
        string[] allBundleNames = AssetDatabase.GetAllAssetBundleNames();
        List<string> hasBundleNameAssets = new List<string>();
        foreach (string n in allBundleNames)
        {
            foreach (string p in AssetDatabase.GetAssetPathsFromAssetBundle(n))
            {
                hasBundleNameAssets.Add(p);
            }
        }
        float idx = 0f;
        foreach (string asset in hasBundleNameAssets)
        {
            SetBundleName(asset, "", false);
            EditorUtility.DisplayProgressBar("清除所有Bundle名称", "当前处理文件:" + Path.GetFileName(asset), idx++ / hasBundleNameAssets.Count);
        }
        EditorUtility.ClearProgressBar();
        AssetDatabase.RemoveUnusedAssetBundleNames();
        AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);
    }

    public static void CreatePath(string path)
    {
        string NewPath = path.Replace("\\", "/");

        string[] strs = NewPath.Split(‘/‘);
        string p = "";

        for (int i = 0; i < strs.Length; ++i)
        {
            p += strs[i];

            if (i != strs.Length - 1)
            {
                p += "/";
            }

            if (!Path.HasExtension(p))
            {
                if (!Directory.Exists(p))
                    Directory.CreateDirectory(p);
            }

        }
    }

    public static string SetBundleName(string path, string name, bool isForce = false)
    {
        if (!isForce)
        {
            if (Directory.Exists(path))
            {
                return null;
            }
        }

        string dictName = Path.GetDirectoryName(path);
        string fileName = Path.GetFileNameWithoutExtension(path);
        string extension = Path.GetExtension(path);

        dictName = dictName.Replace("UIResources_temp", "UIResources");

        if (!isForce)
        {
            if (extension.Equals(".dll") || extension.Equals(".cs") || extension.Equals(".js") || (name != "" && fileName.Contains("atlas") && !extension.Equals(".prefab")))
            {
                return null;
            }
        }

        m_importer = AssetImporter.GetAtPath(path);

        if (name != "")
        {
            m_importer.assetBundleName = dictName + "/" + fileName + name;
        }
        else
        {
            m_importer.assetBundleName = "";
        }
        AssetDatabase.Refresh();

        return m_importer.assetBundleName;
    }

    public static string GetBundleName(string path, string name, bool isForce = false)
    {
        string retBundleName = null;

        if (!isForce)
        {
            if (Directory.Exists(path))
            {
                return retBundleName;
            }
        }

        string dictName = Path.GetDirectoryName(path);
        string fileName = Path.GetFileNameWithoutExtension(path);
        string extension = Path.GetExtension(path);

        if (!isForce)
        {
            if (extension.Equals(".dll") || extension.Equals(".cs") || extension.Equals(".js") || (name != "" && fileName.Contains("atlas") && !extension.Equals(".prefab")))
            {
                return null;
            }
        }

        if (name != "")
        {
            retBundleName = dictName + "/" + fileName + name;

            //Object tex = AssetDatabase.LoadAssetAtPath(path, typeof(Object));

            //if (tex is Texture2D)
            //{
            //    SetTexture(tex as Texture2D);
            //}
        }

        Debug.Log("Asset name: " + fileName);

        AssetDatabase.Refresh();

        return retBundleName;
    }

    static void FindComponents(Transform tf, uint index, ref Dictionary<uint, List<Transform>> dict)
    {
        if (tf.name.Contains("(DynamicComponent)"))
        {
            foreach (Transform sonTf in tf)
            {
                if (componentList.Contains(sonTf.name))
                {
                    Debug.LogWarning("same name component...");
                    UnityEngine.Object.DestroyImmediate(sonTf);
                    continue;
                }
                if (!sonTf.name.Contains("(DynamicComponent)"))
                {
                    Debug.Log("找到组件" + sonTf.name + "深度" + index);
                    componentList.Add(sonTf.name);
                    if (!dict.ContainsKey(index))
                        dict.Add(index, new List<Transform>());
                    dict[index].Add(sonTf);
                    if (sonTf.childCount > 0)
                        FindComponents(sonTf, index + 1, ref dict);
                }
                else
                {
                    if (sonTf.childCount > 0)
                        FindComponents(sonTf, index + 1, ref dict);
                }
            }
        }
        else
        {
            foreach (Transform sonTf in tf)
            {
                if (sonTf.childCount > 0)
                    FindComponents(sonTf, index + 1, ref dict);
            }
        }
    }

    public static void SetTexture(Texture2D tex)
    {
        string path = AssetDatabase.GetAssetPath(tex);
        TextureImporter importer = AssetImporter.GetAtPath(path) as TextureImporter;

        if (importer != null)
        {
            if (!(importer.textureType == TextureImporterType.NormalMap || importer.normalmap))
                importer.mipmapEnabled = false;
            importer.npotScale = TextureImporterNPOTScale.ToNearest;
            importer.textureType = TextureImporterType.Default;
            importer.spriteImportMode = SpriteImportMode.None;
            importer.isReadable = false;

            if (path.Contains("_alpha8"))
            {
                importer.textureFormat = TextureImporterFormat.Alpha8;
            }
            else
            {
                importer.textureFormat = SetTextureFormat(tex, importer);
            }
            importer.maxTextureSize = 8192;

            AssetDatabase.ImportAsset(path);
        }
    }

    static TextureImporterFormat SetTextureFormat(Texture t, TextureImporter importer)
    {
        TextureImporterFormat TextureFormat;
#if UNITY_IPHONE
        if (fun(t.width) && fun(t.height))
        {
            if (importer.DoesSourceTextureHaveAlpha())
            {
                TextureFormat = TextureImporterFormat.PVRTC_RGBA4;
            }
            else
            {
                TextureFormat = TextureImporterFormat.PVRTC_RGB4;
            }
        }
        else
        {
            TextureFormat = TextureImporterFormat.ETC2_RGBA8;

        }

#elif UNITY_ANDROID
        if (fun(t.width) && fun(t.height))
        {
            if (importer.DoesSourceTextureHaveAlpha())
            {
                //importer.alphaIsTransparency = true;
                TextureFormat = TextureImporterFormat.ETC2_RGBA8;
            }
            else
                TextureFormat = TextureImporterFormat.ETC_RGB4;
        }
        else {
            if (importer.DoesSourceTextureHaveAlpha())
            {
                //importer.alphaIsTransparency = true;
                TextureFormat = TextureImporterFormat.RGBA16;
            }
            else
                TextureFormat = TextureImporterFormat.RGB16;
            Debug.LogWarning("Texture " + t.name + " 尺寸不为2的幂次方，无法使用ETC压缩,当前使用 " + TextureFormat.ToString());
        }
#else
        TextureFormat = TextureImporterFormat.RGBA32;
#endif
        return TextureFormat;
    }

    static bool fun(int v)
    {
        bool flag = false;
        if ((v > 0) && (v & (v - 1)) == 0)
            flag = true;
        return flag;
    }

    public static void ExportModifyFilesInfo(string path)
    {
        string extension = "";
        string[] retFils = Directory.GetFiles(path, "*.manifest", SearchOption.AllDirectories);
        //LocalFilesInfo filesInfo = ScriptableObject.CreateInstance<LocalFilesInfo>();

        foreach (var item in retFils)
        {
            File.Delete(item);
        }
    }

    private static void FileCopy(string sourceFileName, string destFileName)
    {
        string dictName = Path.GetDirectoryName(destFileName);

        CreatePath(dictName);

        File.Copy(sourceFileName, destFileName);
    }

    private static string GetMD5HashFromFile(string fileName)
    {
        try
        {
            FileStream file = new FileStream(fileName, FileMode.Open);
            System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
            byte[] retVal = md5.ComputeHash(file);
            file.Close();

            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < retVal.Length; i++)
            {
                sb.Append(retVal[i].ToString("x2"));
            }
            return sb.ToString();
        }
        catch (System.Exception ex)
        {
            throw new System.Exception("GetMD5HashFromFile() fail, error:" + ex.Message);
        }
    }

    public static void ChangeTextureFormat(Object obj)
    {
        Object[] dependObjects;
        dependObjects = EditorUtility.CollectDependencies(new Object[] { obj });

        foreach (Object val in dependObjects)
        {
            if (val is Texture2D)
            {
                SetTexture(val as Texture2D);
            }
        }

        AssetDatabase.Refresh();
    }

    public static void SetAssetBundlesName<T>(List<T> list, string Extension, bool needRefresh) where T : Object
    {
        for (int i = 0; i < list.Count; i++)
        {
            SetAssetBundleName(list[i], Extension, needRefresh);
        }
    }

    public static void SetAssetBundleName<T>(T asset, string Extension, bool needRefresh) where T : Object
    {
        string path = AssetDatabase.GetAssetPath(asset);
        SetBundleName(path, Extension, needRefresh);
    }
}