public IEnumerator LoadAssetBundle(string abName)
{
Debug.Log("Start load:" + abName);
//已经加载过直接返回, 执行回调
if (dicLoadCache.ContainsKey(abName))
{
CompleteLoadAB(abName);
//yield return dicLoadCache[abName].LoadAssetBundle();
}
else
{
SingleAssetBundleLoader loader = new SingleAssetBundleLoader(abName, CompleteLoadAB);
dicLoadCache.Add(abName, loader);
//获取依赖关系
string[] strDependeceArray = AssetBundleManifestLoader.GetInstance().GetDependce(abName);
foreach (string item_depend in strDependeceArray)
{
loader.Relation.AddDependence(item_depend);
//加载依赖项
yield return(LoadDepend(item_depend, loader));
}
yield return(loader.LoadAssetBundle());
}
}
/// <summary>
/// 加载AssetBundle的方法
/// </summary>
/// <param name="abName">要加载AssetBundle的名称</param>
/// <returns></returns>
public IEnumerator LoadAssetBundle(string abName) {
// AssetBundle关系的建立
if (!_relationDict.ContainsKey(abName)) {
AssetBundleRelation relation = new AssetBundleRelation(abName);
_relationDict.Add(abName, relation);
}
AssetBundleRelation tmpRelation = _relationDict[abName];
// 获得所有的依赖关系
string[] depend = AssetBundleManifestLoader.GetInstance().RetrivalDepend(abName);
foreach (string itemDepend in depend) {
tmpRelation.AddDepend(itemDepend); // 添加依赖项
yield return LoadReference(itemDepend, abName); // 添加引用项
}
// 进行AssetBundle加载
if (_loaderCacheDict.ContainsKey(abName)) { // 加载过了
yield return _loaderCacheDict[abName].LoadABWWW(); // 加载AssetBundle
}
else {
_currSingleAssetBundleLoader = new SingleAssetBundleLoader(abName, CompleteLoadSingle);
_loaderCacheDict.Add(abName, _currSingleAssetBundleLoader);
yield return _currSingleAssetBundleLoader.LoadABWWW();
}
yield return null;
}
public static AssetBundleManifestLoader GetInstance()
{
if (instance == null)
{
instance = new AssetBundleManifestLoader();
}
return(instance);
}
public IEnumerator LoadAssetBundlePack(string sceneName, string abName, ABLoadComplete loadComplete)
{
//循环等待manifest加载完成
//TODO 需要优化(加载队列,回调)
while (!AssetBundleManifestLoader.GetInstance().IsLoadFinish)
{
yield return(null);
}
mainfest = AssetBundleManifestLoader.GetInstance().GetMainfest();
if (!dicAllScenes.ContainsKey(sceneName))
{
MultiABManager multiTmpManager = new MultiABManager(abName, loadComplete);
dicAllScenes.Add(sceneName, multiTmpManager);
}
MultiABManager multiManager = dicAllScenes[sceneName];
yield return(multiManager.LoadAssetBundle(abName));
}
/// <summary>
/// 下载AssetBundle指定的包
/// </summary>
/// <param name="sceneName">场景名称</param>
/// <param name="abName">AssetBundle名称</param>
/// <param name="loadAllCompleteHandle">加载完成的委托</param>
/// <returns></returns>
public IEnumerator LoadAssetBundlePack(string sceneName, string abName, LoadComplete loadAllCompleteHandle)
{
// 参数检查
if (string.IsNullOrEmpty(sceneName) || string.IsNullOrEmpty(abName))
{
Debug.LogError($"{GetType()}/LoadAssetBundlePack()方法传入的场景名称和包名称参数为空，无法加载");
yield break;
}
// 等待Manifest加载完毕
while (!AssetBundleManifestLoader.GetInstance().IsLoadFinish)
{
yield return(null);
}
// ab包中的所有依赖项
_manifest = AssetBundleManifestLoader.GetInstance().GetAsstBundleManifest();
if (_manifest == null)
{
Debug.LogError($"{GetType()}/LoadAssetBundlePack()方法_manifest为空，清单文件出现问题无法加载依赖项");
yield break;
}
// 场景的包管理类加入到集合中
if (!_sencesDict.ContainsKey(sceneName))
{
MultiAssetBundleManager multiMannger =
new MultiAssetBundleManager(sceneName, abName, loadAllCompleteHandle);
_sencesDict.Add(sceneName, multiMannger);
}
// 获取多包管理类
MultiAssetBundleManager multiManngerInDict = _sencesDict[sceneName];
if (multiManngerInDict == null)
{
Debug.LogError($"{GetType()}/LoadAssetBundlePack()中multiManngerInDict为空，场景的多包管理类创建失败");
yield break;
}
// 加载指定Ab包
yield return(multiManngerInDict?.LoadAssetBundle(abName));
}
void Awake()
{
//加载Manifest清单文件
StartCoroutine(AssetBundleManifestLoader.GetInstance().LoadMainifestFile());
}
/// <summary>
/// AssetBundleManifestLoader单例获取方法
/// </summary>
/// <returns></returns>
public static AssetBundleManifestLoader GetInstance() {
return _instance ?? (_instance = new AssetBundleManifestLoader()); // 懒加载单例
}