AssetBundle加载测试

using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using UnityEngine;
using Debug = UnityEngine.Debug;

public class ResTest2 : MonoBehaviour
{
    private AssetBundleManifest abm;
    private List<string> absList = new List<string>();
    private List<AssetBundle> abs = new List<AssetBundle>();

    // Use this for initialization
    void Start()
    {
        StartCoroutine(LoadABM(ABMLoaded));
    }

    IEnumerator LoadABM(Action action)
    {
        WWW www = new WWW(Application.streamingAssetsPath + "/windows.t");
        yield return www;
        if (string.IsNullOrEmpty(www.error))
        {
            abm = www.assetBundle.LoadAsset<AssetBundleManifest>("AssetBundleManifest");
        }
        www.Dispose();
        www = null;
        if (action != null)
        {
            action();
        }
    }

    void ABMLoaded()
    {
        Debug.Log("ABM加载完成");
        LoadAllAB();
    }

    #region 测试整体的预加载耗时
    Stopwatch load = new Stopwatch();
    #endregion

    /// <summary>
    /// 没有依赖文件的AB
    /// </summary>
    Dictionary<string, AB> lABs = new Dictionary<string, AB>();
    /// <summary>
    /// 有依赖文件的AB
    /// </summary>
    Dictionary<string, AB> dABs = new Dictionary<string, AB>();

    /// <summary>
    /// 加载所有AB文件
    /// </summary>
    private void LoadAllAB()
    {
        #region 测试整体的预加载耗时
        load.Start();
        #endregion
        string[] abNames = abm.GetAllAssetBundles();
        Debug.LogWarning("AB总数:" + abNames.Length);
        foreach (string abName in abNames)
        {
            string[] dNames = abm.GetAllDependencies(abName);
            if (dNames != null && dNames.Length > 0)
            {
                AB ab = new AB();
                ab.name = abName;
                foreach (string dName in dNames)
                {
                    AB dAB = new AB();
                    dAB.name = dName;
                    ab.dABs.Add(dAB);
                }
                if (!dABs.ContainsKey(abName))
                {
                    dABs.Add(abName, ab);
                }
            }
            else
            {
                AB ab = new AB();
                ab.name = abName;
                if (!lABs.ContainsKey(abName))
                {
                    lABs.Add(abName, ab);
                }
            }
        }
        Debug.LogWarning("无依赖:" + lABs.Count);
        Debug.LogWarning("有依赖:" + dABs.Count); 
        labCount = lABs.Count;
        foreach (AB ab in lABs.Values)
        {
            StartCoroutine(LoadLAB(ab, OnLLoaded));
        }
    }

    private void OnLLoaded()
    { 
        Debug.LogWarning("无依赖的AB加载完毕");
        labCount = dABs.Count;
        foreach (AB ab in dABs.Values)
        {
            StartCoroutine(LoadLAB(ab, OnDLoaded));
        }
    }

    private void OnDLoaded()
    {
        #region 测试预加载整体耗时
        load.Stop();
        Debug.LogWarning("加载耗时：" + load.ElapsedMilliseconds);
        load.Reset();
        #endregion 
        Debug.LogWarning("有依赖的AB加载完毕");

        LoadABI("lobby.ui.lobbyroot", null);
    }

    /// <summary>
    /// 无依赖的ab数
    /// </summary>
    private int labCount = 0;
    /// <summary>
    /// 已加载的无依赖ab数
    /// </summary>
    private int lloadedCount = 0;
    /// <summary>
    /// 加载无依赖的AB
    /// </summary>
    /// <param name="abName"></param>
    /// <param name="action"></param>
    /// <returns></returns>
    private IEnumerator LoadLAB(AB ab, Action action)
    {
        WWW www = new WWW(Application.streamingAssetsPath + "/" + ab.name + ".t");
        yield return www;
        if (string.IsNullOrEmpty(www.error))
        {
            AssetBundle assetBundle = www.assetBundle;
            ab.ab = assetBundle;
            ab.isLoaded = true;
            www.Dispose();
            www = null;
            lloadedCount += 1;
            if (lloadedCount == labCount)
            {
                labCount = 0;
                lloadedCount = 0;
                if (action != null)
                {
                    action();
                }
            }
        }
        else
        {
            Debug.LogWarning("www.error:" + www.error);
        }
    }

    private void LoadABI(string abName, Action action)
    {
        #region 测试整体的预加载耗时
        load.Start();
        #endregion
        AB ab = null;
        dABs.TryGetValue(abName, out ab);
        if (ab != null)
        {
            UnityEngine.Object[] assets = ab.ab.LoadAllAssets();
            GameObject go = Instantiate(assets[0]) as GameObject;
        }
        #region 测试预加载整体耗时
        load.Stop();
        Debug.LogWarning("加载耗时：" + load.ElapsedMilliseconds);
        load.Reset();
        #endregion 
        //WWW www = new WWW(Application.streamingAssetsPath + "/" + abName + ".t");
        //yield return www;
        //if (string.IsNullOrEmpty(www.error))
        //{
        //    AssetBundle ab = www.assetBundle;
        //    abs.Add(ab);
        //    UnityEngine.Object[] assets = ab.LoadAllAssets();
        //    www.Dispose();
        //    www = null;
        //    absList.Add(abName);
        //    GameObject go = Instantiate(assets[0]) as GameObject;
        //    yield return new WaitForEndOfFrame();
        //}
    }

    private void OnApplicationQuit()
    {
        for (int i = 0; i < abs.Count; i++)
        {
            abs[i].Unload(true);
            abs[i] = null;
        }
        abs.Clear();
        absList.Clear();
        Resources.UnloadUnusedAssets();
    }
}

using System.Collections.Generic;
using UnityEngine;

/// <summary>
/// AssetBundle Item
/// </summary>
public class AB
{
    /// <summary>
    /// abname
    /// </summary>
    public string name = "";
    public AssetBundle ab = null;
    /// <summary>
    /// 依赖文件
    /// </summary>
    public List<AB> dABs = new List<AB>();
    /// <summary>
    /// 是否已加载
    /// </summary>
    public bool isLoaded = false;
}