/// <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>
/// 释放本场景中所有的资源
/// 注意点：用于场景之间的切换
/// </summary>
public void DisposeAllAsset()
{
try
{
if (_DicSingleABLoaderCache != null && _DicSingleABLoaderCache.Count > 0)
{
foreach (SingleABLoader singleAbLoader in _DicSingleABLoaderCache.Values)
{
singleAbLoader.DisposeAll();
}
}
}
catch {
Debug.Log(GetType() + "DisposeAllAsset/ 出错");
}
finally
{
_DicSingleABLoaderCache.Clear();
_DicSingleABLoaderCache = null;
// 释放其他的资源
_DicABRelation.Clear();
_DicABRelation = null;
_CurrentSceneName = null;
_CurrentABName = null;
_loadAllABPackageCompleteHandle = null;
_CurrentSingleABLoader = null;
// 卸载没有用到的资源
Resources.UnloadUnusedAssets();
// 强制垃圾收集
System.GC.Collect();
}
}