Unity_AssetBundle 动态资源加载

//Editor:编辑器模式 将脚本放置在此文件夹下 编辑器模式下运行

//1.制作Prefabs       选中场景中的物体  

   //创建成prefab的文件夹
        string prefabPath = "Assets/_CreatedPrefabs/";

        //验证该文件夹是否存在 
        if (AssetDatabase.IsValidFolder(prefabPath) == false)
        {
            AssetDatabase.CreateFolder("Assets", "_CreatedPrefabs");
        }

        //场景中选中的物体
        Transform[] selectedTransform = Selection.transforms;

        //遍历选中的物体   
        foreach (Transform tran in selectedTransform)
        {
            //   遍历子物体    创建成prefab
            for (int i = 0; i < tran.childCount; i++)
            {

                Transform childTran = tran.GetChild(i);
                GameObject childgo = childTran.gameObject;
                string path = prefabPath +childTran.name+".prefab";
                PrefabUtility.CreatePrefab(path, childgo);

                AssetBundleBuild build = new AssetBundleBuild();
                build.assetBundleName = childgo.name;　　　　　　　　　　//设置AssetBundle名称
                build.assetNames = new string[] { path};　　　　　　　　//绑定资源

                builds.Add(build);
            }
        }

//2.通过生成的Prefab来制作AssetBundle

        AssetBundleBuild[] targetBuilds = new AssetBundleBuild[builds.Count];

        for (int i = 0; i < targetBuilds.Length;i++ )
        {
            targetBuilds[i] = builds[i];
        }

            BuildPipeline.BuildAssetBundles(assetBundlePath, targetBuilds);　　　　//打包到指定路径assetBundlePath

//BuildPipeline.BuildAssetBundles("打包出来路径","目标AssetBundleBuild[]");

 //在指定文件夹下可以找到打包好的资源文件: 

//上传gem1 mod_basemeta1 到Tomcat服务器下载

//在unity中设置ProjectSetting :

//在编辑器下可以下载

    IEnumerator LoadAsset(string assetName)
    {
        using (WWW www = new WWW(m_pathURL + assetName))
        {
            yield return www;

            if (www.error != null)
            {
                throw new Exception("www download exception:"+www.error);
            }

            AssetBundle ab = www.assetBundle;

            string[] assetNames = ab.GetAllAssetNames();

            Debug.Log("--assetNames[0]--"+assetNames[0]);

            //存在于缓存中  
            AssetBundleRequest request = ab.LoadAssetAsync<GameObject>(assetNames[0]);

            yield return request;

            GameObject obj = request.asset as GameObject;

            GameObject clone = Instantiate(obj);

            clone.transform.position = new Vector3(0,0,0);

        }
    }

//调用协同程序来进行下载

//另外text文件测试:

    IEnumerator LoadText(string textName)
    {
        using (WWW www = new WWW(m_pathURL+textName))
        {

            yield return www;

            if (www.error!=null)
            {
                throw new Exception(www.error);
            }

            Debug.Log("---www.bytesDownloaded-"+www.bytesDownloaded);

            byte[] bytes = www.bytes;

            string str = System.Text.Encoding.ASCII.GetString(bytes);

            Debug.Log(str);

        }
    }