/// <summary>
/// 加载 AB 包
/// </summary>
/// <param name="abName">AB包名称</param>
/// <returns></returns>
public IEnumerator LoadAssetBundle(string abName)
{
// AB包关系的建立
if (!_DicABRelation.ContainsKey(abName))
{
ABRelation tmpABrelation = new ABRelation(abName);
_DicABRelation.Add(abName, tmpABrelation);
}
ABRelation abRelation = _DicABRelation[abName];
// 得到指定AB包的依赖引用关系
string[] strDenendence = ABManifestLoader.GetInstance().RetrivalDependce(abName);
// 相同的包名在添加 依赖和引用项时 内部会做一个判断：查看是否添加过，添加过就不再添加了
foreach (string item in strDenendence)
{
// 添加 “依赖项”
abRelation.AddDenpendce(item);
// 添加 “引用项”
yield return(LoadReference(item, abName));
}
//加载AB包
if (!_DicSingleABLoaderCache.ContainsKey(abName))
{
_CurrentSingleABLoader = new SingleABLoader(abName, CompleteLoadAB);
_DicSingleABLoaderCache.Add(abName, _CurrentSingleABLoader);
yield return(_DicSingleABLoaderCache[abName].LoadAssetBundle());
}
}
/// <summary>
/// 获取本类实例
/// </summary>
/// <returns></returns>
public static ABManifestLoader GetInstance()
{
if (_Instance == null)
{
_Instance = new ABManifestLoader();
}
return(_Instance);
}
/// <summary>
/// 加载指定场景，指定包
/// </summary>
/// <param name="sceneName">场景名称</param>
/// <param name="abName">assetBundle 名称</param>
/// <param name="loadAllCompleteHandle">制定的AB包加载完成之后，执行的方法</param>
/// <returns></returns>
public IEnumerator LoadAssetBundlePack(string sceneName, string abName, DelLoadComplete loadAllCompleteHandle)
{
if (_Instance == null)
{
yield break;
}
// 参数检查
if (string.IsNullOrEmpty(sceneName) || string.IsNullOrEmpty(abName) || loadAllCompleteHandle == null)
{
Debug.LogError(GetType() + "/LoadAssetBundlePack()/sceneName or abName or loadAllCompleteHandle =null");
yield break;
}
if (!abName.Contains("."))
{
Debug.LogError(GetType() + "/LoadAssetBundlePack()/ abName需要有后缀的(.ab或.scene)");
}
// 规范化参数
string _CurrentSceneName = sceneName.ToLower();
string _CurrentAB = String.Empty;
if (abName.Contains("/"))
{
_CurrentAB = abName.ToLower();
}
else
{
_CurrentAB = _CurrentSceneName + "/" + abName.ToLower();
}
// 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 =null");
yield break;
}
// 把当前场景加入集合
if (!_DicAllScenes.ContainsKey(_CurrentSceneName))
{
MultiABManager multiMgrObj = new MultiABManager(_CurrentSceneName);
_DicAllScenes.Add(_CurrentSceneName, multiMgrObj);
}
// 调用下一层（MultiABManager）
MultiABManager tmpMultiAbManager = _DicAllScenes[_CurrentSceneName];
if (tmpMultiAbManager == null)
{
Debug.LogError(GetType() + "/LoadAssetBundlePack()/tmpMultiAbManager=null");
yield break;
}
else
{
tmpMultiAbManager.SetCurrentABNameAndHandler(_CurrentAB, loadAllCompleteHandle);
// 调用“多包管理类”来加载指定AB包
yield return(tmpMultiAbManager.LoadAssetBundle(_CurrentAB));
}
}
void Awake()
{
StartCoroutine(ABManifestLoader.GetInstance().LoadManifestFile());
}
