untiy中的AssetBundle资源打包

男娘i 2021-09-16 10:42 284阅读 0赞

**目录**

1.加载文件有三种方式： 同步加载本地文件，异步加载本地文件，从web加载文件

2.加载依赖的包：AssetBundle-AssetBundleManifest

3.编辑器

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## 1.加载文件有三种方式： 同步加载本地文件，异步加载本地文件，从web加载文件 ##

*    同步加载本地文件：

void  Start()
       {
           string path = "AssetBundles/scene/cube.unity3d";
           AssetBundle ab = AssetBundle.LoadFromFile(path);
            AssetBundle.LoadFromFile("AssetBundles/share.unity3d");
           GameObject wallPrefab = ab.LoadAsset<GameObject>("Cube");
           Instantiate(wallPrefab);
       }

*  异步加载本地文件：

IEnumerator   Start()
       {
           string path = "AssetBundles/scene/cube.unity3d";
           AssetBundleCreateRequest request = AssetBundle.LoadFromFileAsync(path);
           yield return request;
           AssetBundle ab = request.assetBundle;
           AssetBundle.LoadFromFile("AssetBundles/share.unity3d");
           GameObject wallPrefab = ab.LoadAsset<GameObject>("Cube");
           Instantiate(wallPrefab);
       }

*  从web加载文件：

IEnumerator   Start()
       {
           string path = "AssetBundles/scene/cube.unity3d";
           string uri = @"file:///E:\unityPractice\AssetBuddleProject\AssetBundles\scene\cube.unity3d";
           UnityWebRequest request = UnityWebRequest.GetAssetBundle(uri);
           yield return request.SendWebRequest ();
           //AssetBundle ab = DownloadHandlerAssetBundle.GetContent(request);
           AssetBundle ab = (request.downloadHandler as DownloadHandlerAssetBundle).assetBundle;
           AssetBundle.LoadFromFile("AssetBundles/share.unity3d");
           GameObject wallPrefab = ab.LoadAsset<GameObject>("Cube");
           Instantiate(wallPrefab);
       }

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## 2.加载依赖的包：AssetBundle-AssetBundleManifest    ##

*  加载所有的ab包（manifest.GetAllAssetBundles()）

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void Start()
        {
            AssetBundle manifestAB = AssetBundle.LoadFromFile("AssetBundles/AssetBundles");
            AssetBundleManifest manifest = manifestAB.LoadAsset<AssetBundleManifest>("AssetBundleManifest");
            foreach (string name in manifest.GetAllAssetBundles())
            {
                print(name);
            }
        }

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*  加载方块所有依赖的物体（manifest.GetAllDependencies（））

void Start()
        {
            string path = "AssetBundles/scene/cube.unity3d";
            AssetBundle ab = AssetBundle.LoadFromFile(path);
            GameObject cubePrefab = ab.LoadAsset<GameObject>("Cube");
            Instantiate(cubePrefab);//此时实例化出来的方块没有材质
    
            AssetBundle manifestAB = AssetBundle.LoadFromFile("AssetBundles/AssetBundles");
            AssetBundleManifest manifest = manifestAB.LoadAsset<AssetBundleManifest>("AssetBundleManifest");
    
            string[] strs = manifest.GetAllDependencies ("scene/cube.unity3d");//取得方块所有依赖的物体
            foreach (string name in strs)
            {
                print(name);  //share.unity3d
                AssetBundle.LoadFromFile("AssetBundles/" + name);//此时加载出来了材质
            }
        }

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## 3.编辑器 ##

using UnityEditor;
    using System.IO;
    
    public class CreateAssetBundles
    {
        [MenuItem("Assets/Build AssetBundles")]
        static void BuildAllAssetBundles()
        {
            string dir = "AssetBundles";
            if (Directory.Exists(dir) == false)
            {
                Directory.CreateDirectory(dir);
            }
            BuildPipeline.BuildAssetBundles(dir, BuildAssetBundleOptions.UncompressedAssetBundle, BuildTarget.StandaloneWindows64);
        }
    }

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[70 9]: https://img-blog.csdn.net/20180924125928194?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70
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