/// <summary>
/// 加载AB包
/// </summary>
/// <param name="abName">AB包名</param>
/// <returns></returns>
public IEnumerator LoadAssetBundle(string abName)
{
if (!_DicABRelaton.ContainsKey(abName))
{
ABRelation abRelationObj = new ABRelation(abName);
_DicABRelaton.Add(abName, abRelationObj);
}
ABRelation tmpABRelationObj = _DicABRelaton[abName];
//得到指定AB包所有的依赖关系
string[] strDependenceArray = ABManifestLoader.GetInstance().RetrivalDependence(abName);
foreach (string item_Dependence in strDependenceArray)
{
//添加依赖
tmpABRelationObj.AddDependence(item_Dependence);
//添加引用 递归
yield return(LoadReference(item_Dependence, abName));
}
//真正加载AB包
if (_DicSingleABLoaderCache.ContainsKey(abName))
{
yield return(_DicSingleABLoaderCache[abName].LoadAssetBundle());
}
else
{
_CurrentSingleABLoader = new SingleABLoader(abName, CompleteLoadAB);
_DicSingleABLoaderCache.Add(abName, _CurrentSingleABLoader);
yield return(_CurrentSingleABLoader.LoadAssetBundle());
}
}
/// <summary>
/// 获取本类实例
/// </summary>
/// <returns></returns>
public static ABManifestLoader GetInstance()
{
if (_Instance == null)
{
_Instance = new ABManifestLoader();
}
return(_Instance);
}
/// <summary>
/// 下载AssetBundel 指定包
/// </summary>
/// <param name="scenesName">场景名称</param>
/// <param name="abName">AssetBundle 包名称</param>
/// <param name="loadAllCompleteHandle">委托： 调用是否完成</param>
/// <returns></returns>
public IEnumerator LoadAssetBundlePack(string scenesName, string abName, DelLoadComplete loadAllCompleteHandle)
{
//参数检查
if (string.IsNullOrEmpty(scenesName) || string.IsNullOrEmpty(abName))
{
Debug.LogError(GetType() + "/LoadAssetBundlePack()/ScenesName Or abName is null ,请检查！");
//yield return null;//类似于C#中的 continue 。 作用是跳过当前“帧”
yield break; //类似于C# 中 return null;
}
//等待Manifest清单文件加载完成
while (!ABManifestLoader.GetInstance().IsLoadFinish)
{
yield return(null);
}
_ManifestObj = ABManifestLoader.GetInstance().GetABManifest();
if (_ManifestObj == null)
{
Debug.LogError(GetType() + "/LoadAssetBundlePack()/_ManifestObj is null ,请先确保加载Manifest清单文件！");
//yield return null;
yield break;
}
//把当前场景加入集合中。
if (!_DicAllScenes.ContainsKey(scenesName))
{
MultiABMgr multiMgrObj = new MultiABMgr(scenesName, abName, loadAllCompleteHandle);
_DicAllScenes.Add(scenesName, multiMgrObj);
}
//调用下一层（“多包管理类”）
MultiABMgr tmpMultiMgrObj = _DicAllScenes[scenesName];
if (tmpMultiMgrObj == null)
{
Debug.LogError(GetType() + "/LoadAssetBundlePack()/tmpMultiMgrObj is null ,请检查！");
}
//调用“多包管理类”的加载指定AB包。
yield return(tmpMultiMgrObj.LoadAssetBundeler(abName));
}//Method_end
/// <summary>
/// 下载AssetBundle指定包
/// </summary>
/// <param name="sceneName">场景名称</param>
/// <param name="abName">AssetBundle包名称</param>
/// <param name="loadAllCompleteHandle">完成回调</param>
/// <returns></returns>
public IEnumerator LoadAssetBundlePack(string sceneName, string abName, DelLoadComplete loadAllCompleteHandle)
{
if (string.IsNullOrEmpty(sceneName) || string.IsNullOrEmpty(abName))
{
Debug.LogError("sceneName:" + sceneName + ", abName:" + abName);
yield break;
}
while (!ABManifestLoader.GetInstance().IsLoadFinish)
{
yield return(null);
}
_ManifestObj = ABManifestLoader.GetInstance().GetABManifest();
if (_ManifestObj == null)
{
Debug.LogError("_ManifestObj == null");
yield break;
}
//把当前场景加入集合中
if (!_DicAllScene.ContainsKey(sceneName))
{
MultiABMgr multiABMgrObj = new MultiABMgr(sceneName, abName, loadAllCompleteHandle);
_DicAllScene.Add(sceneName, multiABMgrObj);
}
//调用 多包管理类
MultiABMgr tmpMultiABMgrObj = _DicAllScene[sceneName];
if (tmpMultiABMgrObj == null)
{
Debug.LogError("tmpMultiABMgrObj == null");
yield break;
}
//加载指定AB包
yield return(tmpMultiABMgrObj.LoadAssetBundle(abName));
}
void Awake()
{
//加载Manifest清单文件
StartCoroutine(ABManifestLoader.GetInstance().LoadMainifestFile());
}