前段时间说了AssetBundle打包，先设置AssetLabels,再执行打包，但是这样有个弊端就是所有设置了AssetLabels的资源都会打包，这次说说不设置AssetLabels，该如何打包AssetBundle

BuildPipeline.BuildAssetBundles() 这个函数，有多个重载，一个不用AssetBundleBuild数组，一个需要，如果设置了AssetLabels,那么这时候是不需要的，如果没有设置，那么我们就可以打包自定义项，

AssetBundleBuild assetBundleBuild = new AssetBundleBuild();  我们可以new 出来一个 AssetBundleBuild  ，在这里指定他的  assetBundleName  和  assetBundleVariant  ，也就是前面提到的AssetLabels,

同时还要指出此资源所在地址     assetBundleBuild.assetNames = new string[] { path };  并将所有的 AssetBundleBuild  做为数组返回，填入 BuildPipeline.BuildAssetBundles() 所需要的参数中；

详见代码

 static List<AssetBundleBuild> listassets = new List<AssetBundleBuild>();  //第二种打包方式用
    static List<DirectoryInfo> listfileinfo = new List<DirectoryInfo>();
    static bool isover = false; //是否检查完成，可以打包

    public static bool GetState()
    {
        return isover;
    }

    public static AssetBundleBuild[] GetAssetBundleBuilds()
    {
        return listassets.ToArray();
    }

    public static void   SetAssetBundleBuilds()
    {
        UnityEngine.Object obj = Selection.activeObject;    //选中的物体
        string path = AssetDatabase.GetAssetPath(obj);//选中的文件夹  //目录结构  Assets/Resources 没有Application.datapath
        SearchFileAssetBundleBuild(path);
    }

    public static void SearchFileAssetBundleBuild(string path)   //是文件，继续向下
    {
        DirectoryInfo directory = new DirectoryInfo(@path);
        FileSystemInfo[] fileSystemInfos = directory.GetFileSystemInfos();
        listfileinfo.Clear();
        foreach (var item in fileSystemInfos)
        {
            int idx = item.ToString().LastIndexOf(@"\");
            string name = item.ToString().Substring(idx + );
            if ((item as DirectoryInfo) != null)
                listfileinfo.Add(item as DirectoryInfo);
            if (!name.Contains(".meta"))
            {
                CheckFileOrDirectoryReturnBundleName(item, path + "/" + name);
            }
        }
        if (listfileinfo.Count == )
            isover = true;
        else
        {
            Debug.LogError(listfileinfo.Count);
        }
    }

    public static string CheckFileOrDirectoryReturnBundleName(FileSystemInfo fileSystemInfo, string path) //判断是文件还是文件夹
    {
        FileInfo fileInfo = fileSystemInfo as FileInfo;
        if (fileInfo != null)
        {
            string[] strs = path.Split('.');
            string[] dictors = strs[].Split('/');
            string name = "";
            for (int i = ; i < dictors.Length; i++)
            {
                if (i < dictors.Length - )
                {
                    name += dictors[i] + "/";
                }
                else
                {
                    name += dictors[i];
                }
            }
            AssetBundleBuild assetBundleBuild = new AssetBundleBuild();
            assetBundleBuild.assetBundleName = name;
            assetBundleBuild.assetBundleVariant = "bytes";
            assetBundleBuild.assetNames = new string[] { path };
            listassets.Add(assetBundleBuild);
            return name;
        }
        else
        {
            SearchFileAssetBundleBuild(path);
            return null;
        }
    }

然后在这里调用

注意，因为文件夹下还可能有文件夹，我们要等所有资源遍历完成，再打包，所以用了一个死循环

 [MenuItem("Tools/打包选中文件夹下所有项目")]
    public static void BundSelectionAssets()
    {
        BuilderAssetsBunlds.SetAssetBundleBuilds();
        while (true)
        {
            if (BuilderAssetsBunlds.GetState())
                break;
            else
                Debug.LogError("等待.....");
        }
        BuildPipeline.BuildAssetBundles(BuilderAssetsBunlds.GetOutAssetsDirecotion(), BuilderAssetsBunlds.GetAssetBundleBuilds(), BuildAssetBundleOptions.None, BuildTarget.StandaloneWindows);

    }

好了，今天就到这里，加上前面的，所有的都在这里

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

public class BuilderAssetsBunlds
{
    public static string GetOutAssetsDirecotion() //打包输出地址，后续会再完善
    {
        string assetBundleDirectory = Application.streamingAssetsPath;
        if (!Directory.Exists(assetBundleDirectory))
        {
            Directory.CreateDirectory(assetBundleDirectory);
        }
        return assetBundleDirectory;
    }

    /// <summary>
    /// 检查目标文件下的文件系统
    /// </summary>
    public static void CheckFileSystemInfo()  //检查目标目录下的文件系统
    {
        AssetDatabase.RemoveUnusedAssetBundleNames(); //移除没有用的assetbundlename
        UnityEngine.Object obj = Selection.activeObject;    //选中的物体
        string path = AssetDatabase.GetAssetPath(obj);//选中的文件夹  //目录结构  Assets/Resources 没有Application.datapath
        CoutineCheck(path);
    }

    public static void CheckFileOrDirectory(FileSystemInfo fileSystemInfo, string path) //判断是文件还是文件夹
    {
        FileInfo fileInfo = fileSystemInfo as FileInfo;
        if (fileInfo != null)
        {
            SetBundleName(path);
        }
        else
        {
            CoutineCheck(path);
        }
    }

    public static void CoutineCheck(string path)   //是文件，继续向下
    {
        DirectoryInfo directory = new DirectoryInfo(@path);
        FileSystemInfo[] fileSystemInfos = directory.GetFileSystemInfos();

        foreach (var item in fileSystemInfos)
        {
            // Debug.Log(item);
            int idx = item.ToString().LastIndexOf(@"\");
            string name = item.ToString().Substring(idx + );

            if (!name.Contains(".meta"))
            {
                CheckFileOrDirectory(item, path + "/" + name);  //item  文件系统，加相对路径
            }
        }
    }

    public static void SetBundleName(string path)  //设置assetbundle名字
    {
        //  Debug.LogError(path);
        var importer = AssetImporter.GetAtPath(path);
        string[] strs = path.Split('.');
        string[] dictors = strs[].Split('/');
        string name = "";
        for (int i = ; i < dictors.Length; i++)
        {
            if (i < dictors.Length - )
            {
                name += dictors[i] + "/";
            }
            else
            {
                name += dictors[i];
            }
        }
        if (importer != null)
        {
            importer.assetBundleName = name;
            importer.assetBundleVariant = "bytes";
            // importer.assetBundleName = GetGUID(path);   //两种设置方式
        }
        else
            Debug.Log("importer是空的");
    }

    public static string GetGUID(string path)
    {
        return AssetDatabase.AssetPathToGUID(path);
    }

    //*****************配置文件设置***********************////////////

    static Dictionary<string, string> dicversoion = new Dictionary<string, string>(); //版本
    static Dictionary<string, string> dicurl = new Dictionary<string, string>();      //下载地址

    public static string GetAssetBundleStringPath()  //得到存放打包资源的文件路径
    {
        string path = Application.streamingAssetsPath;
        //Debug.Log(path);
        string[] strs = path.Split('/');
        int idx = ;
        for (int i = ; i < strs.Length; i++)
        {
            if (strs[i] == "Assets")
                idx = i;
        }
        // Debug.Log(idx);
        //path = strs[strs.Length - 2] + "/" + strs[strs.Length - 1];
        string str = "";
        for (int i = idx; i < strs.Length; i++)
        {
            if (i != strs.Length - )
                str += strs[i] + "/";
            else if (i == strs.Length - )
                str += strs[i];
            //Debug.Log(i);
        }
        path = str;
        return path;
        //Debug.Log(path);
    }

    public static void CheckAssetBundleDir(string path)   //是文件，继续向下
    {
        DirectoryInfo directory = new DirectoryInfo(@path);
        FileSystemInfo[] fileSystemInfos = directory.GetFileSystemInfos();

        foreach (var item in fileSystemInfos)
        {
            // Debug.Log(item);
            int idx = item.ToString().LastIndexOf(@"\");
            string name = item.ToString().Substring(idx + );

            if (!name.Contains(".meta"))
            {
                CheckAssetBundleFileOrDirectory(item, path + "/" + name);  //item  文件系统，加相对路径
            }
        }
    }

    public static void CheckAssetBundleFileOrDirectory(FileSystemInfo fileSystemInfo, string path) //判断是文件还是文件夹
    {
        FileInfo fileInfo = fileSystemInfo as FileInfo;
        if (fileInfo != null)
        {
            Debug.Log("不为空,MD5值==>" + GetMD5(path));
            // string guid = AssetDatabase.AssetPathToGUID(path);
            // Debug.Log("不为空,文件名字是==>>"+guid);
            Addconfigdic(fileInfo.Name, GetMD5(path));
        }
        else
        {
            CheckAssetBundleDir(path);
        }
    }

    public static string GetMD5(string path)
    {
        FileStream fs = new FileStream(path, FileMode.Open);
        MD5 md5 = new MD5CryptoServiceProvider();
        byte[] retVal = md5.ComputeHash(fs);
        fs.Close();
        StringBuilder sb = new StringBuilder();
        for (int i = ; i < retVal.Length; i++)
        {
            sb.Append(retVal[i].ToString("x2"));
        }
        return sb.ToString();
    }

    public static void Addconfigdic(string name, string verMd5)
    {
        dicversoion.Add(name, verMd5);
    }

    public static void CreateConfigFile(string path) //创建配置文件
    {

    }
    // -------------------------------我是分割线------------------------------------
    //   割.............................
    static List<AssetBundleBuild> listassets = new List<AssetBundleBuild>();  //第二种打包方式用
    static List<DirectoryInfo> listfileinfo = new List<DirectoryInfo>();
    static bool isover = false; //是否检查完成，可以打包

    public static bool GetState()
    {
        return isover;
    }

    public static AssetBundleBuild[] GetAssetBundleBuilds()
    {
        return listassets.ToArray();
    }

    public static void   SetAssetBundleBuilds()
    {
        UnityEngine.Object obj = Selection.activeObject;    //选中的物体
        string path = AssetDatabase.GetAssetPath(obj);//选中的文件夹  //目录结构  Assets/Resources 没有Application.datapath
        SearchFileAssetBundleBuild(path);
    }

    public static void SearchFileAssetBundleBuild(string path)   //是文件，继续向下
    {
        DirectoryInfo directory = new DirectoryInfo(@path);
        FileSystemInfo[] fileSystemInfos = directory.GetFileSystemInfos();
        listfileinfo.Clear();
        foreach (var item in fileSystemInfos)
        {
            int idx = item.ToString().LastIndexOf(@"\");
            string name = item.ToString().Substring(idx + );
            if ((item as DirectoryInfo) != null)
                listfileinfo.Add(item as DirectoryInfo);
            if (!name.Contains(".meta"))
            {
                CheckFileOrDirectoryReturnBundleName(item, path + "/" + name);
            }
        }
        if (listfileinfo.Count == )
            isover = true;
        else
        {
            Debug.LogError(listfileinfo.Count);
        }
    }

    public static string CheckFileOrDirectoryReturnBundleName(FileSystemInfo fileSystemInfo, string path) //判断是文件还是文件夹
    {
        FileInfo fileInfo = fileSystemInfo as FileInfo;
        if (fileInfo != null)
        {
            string[] strs = path.Split('.');
            string[] dictors = strs[].Split('/');
            string name = "";
            for (int i = ; i < dictors.Length; i++)
            {
                if (i < dictors.Length - )
                {
                    name += dictors[i] + "/";
                }
                else
                {
                    name += dictors[i];
                }
            }
            AssetBundleBuild assetBundleBuild = new AssetBundleBuild();
            assetBundleBuild.assetBundleName = name;
            assetBundleBuild.assetBundleVariant = "bytes";
            assetBundleBuild.assetNames = new string[] { path };
            listassets.Add(assetBundleBuild);
            return name;
        }
        else
        {
            SearchFileAssetBundleBuild(path);
            return null;
        }
    }

}

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

public class Constant
{
    public static string SD_DIR = "SD_DIR";
}
public class BundleSystem
{
    //打包、、、、、、、、、、、、、、、、、、、、、、
    [MenuItem("Tools/打包所有设置AssetLable项目")]
    public static void BundlerAssets()
    {
        // Debug.LogError("打包Assets");
        BuildPipeline.BuildAssetBundles(BuilderAssetsBunlds.GetOutAssetsDirecotion(), BuildAssetBundleOptions.None, BuildTarget.StandaloneWindows);
    }

    [MenuItem("Tools/打包选中文件夹下所有项目")]
    public static void BundSelectionAssets()
    {
        BuilderAssetsBunlds.SetAssetBundleBuilds();
        while (true)
        {
            if (BuilderAssetsBunlds.GetState())
                break;
            else
                Debug.LogError("等待.....");
        }
        BuildPipeline.BuildAssetBundles(BuilderAssetsBunlds.GetOutAssetsDirecotion(), BuilderAssetsBunlds.GetAssetBundleBuilds(), BuildAssetBundleOptions.None, BuildTarget.StandaloneWindows);

    }

    [MenuItem("Tools/设置Assetbundle名字")]
    public static void SetAssetBundellabls()
    {
        BuilderAssetsBunlds.CheckFileSystemInfo();
    }

    [MenuItem("Tools/设置配置文件")]
    public static void SetAssetConfig()
    {
        BuilderAssetsBunlds.CheckAssetBundleDir(BuilderAssetsBunlds.GetAssetBundleStringPath());
    }

    [MenuItem("Tools/测试")]
    static void PackAsset()
    {
        Debug.Log("Make AssetsBundle");
        //
        List<AssetBundleBuild> builds = new List<AssetBundleBuild>();
        AssetBundleBuild build = new AssetBundleBuild();

        build.assetBundleName = "first";
        build.assetBundleVariant = "u3";
        // build.assetNames[0] = "Assets/Resources/mascot.prefab";
        build.assetNames = new string[] { "Assets/PNG/结算副本.png" };
        builds.Add(build);
        // 第一个参数为打包文件的输出路径，第二个参数为打包资源的列表，第三个参数为打包需要的操作，第四个为打包的输出的环境
        //BuildPipeline.BuildAssetBundles(@"Assets/Bundle", builds.ToArray(),
        //    BuildAssetBundleOptions.None, BuildTarget.Android);
        BuildPipeline.BuildAssetBundles(@"Assets/Bundle", builds.ToArray(), BuildAssetBundleOptions.None, BuildTarget.Android);
        Debug.Log("" + builds.ToArray() + "");
    }
}

上篇传送门

http://www.cnblogs.com/lzy575566/p/7714510.html