AssetBundle(简称AB)的打包流程及注意事项

压缩的三种常用方式
如果材质和 Prefab 分别打包,则需要先拆材质包再拆Prefab包
代码如下
using System.Collections;
using UnityEngine;
using UnityEngine.Networking;

public class LoadAB : MonoBehaviour
{

    IEnumerator Start()
    {
        string path = "AB/scene/zxw.1";//路径

        //通过本地文件加载

        //AssetBundleCreateRequest request = AssetBundle.LoadFromFileAsync(path);//通过文件路径取得A包资源
        //yield return request;//等待load加载完成并返回
        //AssetBundle ab = request.assetBundle;//取得对象

        //通过内存加载

        //异步 需要等待加载完成 需要引入协程IEnumerator 

        //AssetBundleCreateRequest request = AssetBundle.LoadFromMemoryAsync(File.ReadAllBytes(path));
        //yield return request;
        //AssetBundle ab = request.assetBundle;

        //同步 不需要等待加载完成 29行 = 23-25行

        //AssetBundle ab = AssetBundle.LoadFromMemory(File.ReadAllBytes(path));

        //通过WWW加载 如果有错误 不会出现异常 常加一个安全校验

        //while (Caching.ready == false)
        //{
        //    yield return null;
        //}
        ////WWW www = WWW.LoadFromCacheOrDownload(@"file:///D:\unity\AssetBundle\AB\scene\zxw.1", 1);//(路径(前面加一个@符号,注意为两或三个反斜杠),版本号)

        ////通过网络加载(搭建简单的Server服务器)

        //WWW www = WWW.LoadFromCacheOrDownload(@"http://localhost/AB/scene/zxw.1", 1);//(路径(前面加一个@符号,注意为两或三个反斜杠),版本号)
        //yield return www;

        ////安全校验

        //if (string.IsNullOrEmpty(www.error) == false)//如果为空或者空字符串 
        //{
        //    Debug.Log(www.error);
        //    yield break;//中断协程
        //}
        //AssetBundle ab = www.assetBundle;//取得对象

        //使用UnityWebRequest加载

        string uri = @"file:///D:\unity\AssetBundle\AB\scene\zxw.1";//声明统一资源路径(文件)
        //string uri = @"http://localhost/AB/scene/zxw.1";//声明统一资源路径(Server路径)
        UnityWebRequest request = UnityWebRequestAssetBundle.GetAssetBundle(uri);//指定uri
        yield return request.Send();
        //AssetBundle ab = DownloadHandlerAssetBundle.GetContent(request);//取得对象

        //或

        AssetBundle ab = (request.downloadHandler as DownloadHandlerAssetBundle).assetBundle;//将下载的资源转换为ab资源利用


        //加载操作

        GameObject GameAB = ab.LoadAsset<GameObject>("Sphere");//加载A包资源 注意这里是Prefab的名字 
        Instantiate(GameAB);//实例化到场景当中
    }
}
AssetBundle(简称AB)的打包流程及注意事项

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