/// <summary>
/// 取消异步加载资源
/// </summary>
/// <returns></returns>
internal bool CancleLoad(ResouceObj res)
{
AsyncLoadResParam para = null;
if (_LoadingAssetDic.TryGetValue(res.Crc, out para) &&
_LoadingAssetList[(int)para.Priority].Contains(para))
{
for (int i = para.CallBackList.Count - 1; i >= 0; i--)
{
AsyncCallBack tempCallBack = para.CallBackList[i];
if (tempCallBack != null && res == tempCallBack.ResObj)
{
para.CallBackList.Remove(tempCallBack);
tempCallBack.Reset();
_AsyncCallBackPool.Recycle(tempCallBack);
}
}
if (para.CallBackList.Count <= 0)
{
_LoadingAssetList[(int)para.Priority].Remove(para);
para.Reset();
_AsyncLoadResParamPool.Recycle(para);
_LoadingAssetDic.Remove(res.Crc);
return(true);
}
}
return(false);
}
/// <summary>
/// 异步加载
/// </summary>
/// <returns></returns>
IEnumerator AsyncLoadCor()
{
List <AsyncCallBack> callBackList = null;
//上一次yield的时间
long lastYieldTime = System.DateTime.Now.Ticks;
while (true)
{
bool haveYield = false;
for (int i = 0; i < (int)LoadResPriority.Res_Num; i++)
{
if (_LoadingAssetList[(int)LoadResPriority.Res_Hight].Count > 0)
{
i = (int)LoadResPriority.Res_Hight;
}
else if (_LoadingAssetList[(int)LoadResPriority.Res_Middle].Count > 0)
{
i = (int)LoadResPriority.Res_Middle;
}
List <AsyncLoadResParam> loadingList = _LoadingAssetList[i];
if (loadingList.Count <= 0)
{
continue;
}
AsyncLoadResParam loadingItem = loadingList[0];
loadingList.RemoveAt(0);
callBackList = loadingItem.CallBackList;
Object obj = null;
ResItem item = null;
#if UNITY_EDITOR
if (IsEditorLoadMode)
{
if (item == null)
{
item = new ResItem();
item.Crc = loadingItem.Crc;
}
if (loadingItem.LoadMode == ResKit.LoadResMode.Resource)
{
ResourceRequest resRequest = null;
if (loadingItem.ResType == typeof(Sprite))
{
resRequest = Resources.LoadAsync <Sprite>(loadingItem.Path);
}
else
{
resRequest = Resources.LoadAsync <Object>(loadingItem.Path);
}
yield return(resRequest);
if (resRequest.isDone)
{
obj = resRequest.asset;
}
lastYieldTime = System.DateTime.Now.Ticks;
}
else
{
if (loadingItem.ResType == typeof(Sprite))
{
obj = LoadAssetByEditor <Sprite>(loadingItem.Path);
}
else
{
obj = LoadAssetByEditor <Object>(loadingItem.Path);
}
//模拟异步加载
yield return(new WaitForSeconds(0.2f));
}
}
#endif
if (obj == null)
{
if (loadingItem.LoadMode == ResKit.LoadResMode.Resource)
{
if (item == null)
{
item = new ResItem();
item.Crc = loadingItem.Crc;
}
ResourceRequest resRequest = null;
if (loadingItem.ResType == typeof(Sprite))
{
resRequest = Resources.LoadAsync <Sprite>(loadingItem.Path);
}
else
{
resRequest = Resources.LoadAsync <Object>(loadingItem.Path);
}
yield return(resRequest);
if (resRequest.isDone)
{
obj = resRequest.asset;
}
lastYieldTime = System.DateTime.Now.Ticks;
}
else
{
item = AssetBundleMgr.Instance.LoadResourceAssetBundle(loadingItem.Crc);
if (item != null && item.AssetBundle != null)
{
AssetBundleRequest abRequest = null;
if (loadingItem.ResType == typeof(Sprite))
{
//是图片资源
abRequest = item.AssetBundle.LoadAssetAsync <Sprite>(item.AssetName);
}
else
{
//不是图片资源
abRequest = item.AssetBundle.LoadAssetAsync(item.AssetName);
}
yield return(abRequest);
if (abRequest.isDone)
{
obj = abRequest.asset;
}
lastYieldTime = System.DateTime.Now.Ticks;
}
else
{
Debug.LogErrorFormat("加载AssetBundle失败 : 不能从AssetBundleConfig中找到 Path :{0}", loadingItem.Path);
}
}
}
item.Crc = loadingItem.Crc;
item.Obj = obj;
item.Guid = obj.GetInstanceID();
CacheResource(loadingItem.Path, ref item, loadingItem.Crc, callBackList.Count);
for (int j = 0; j < callBackList.Count; j++)
{
AsyncCallBack callBack = callBackList[j];
if (callBack != null && callBack.OnFinish != null && callBack.ResObj != null)
{
ResouceObj tempResObj = callBack.ResObj;
tempResObj.ResItem = item;
callBack.OnFinish(loadingItem.Path, tempResObj, tempResObj.ParamValues);
callBack.OnFinish = null;
tempResObj = null;
}
if (callBack != null && callBack.OnObjFinish != null)
{
callBack.OnObjFinish(loadingItem.Path, obj, callBack.ParamValues);
callBack.OnObjFinish = null;
}
callBack.Reset();
_AsyncCallBackPool.Recycle(callBack);
}
obj = null;
callBackList.Clear();
_LoadingAssetDic.Remove(loadingItem.Crc);
loadingItem.Reset();
_AsyncLoadResParamPool.Recycle(loadingItem);
if (System.DateTime.Now.Ticks - lastYieldTime > _MaxLoadResTime)
{
yield return(null);
lastYieldTime = System.DateTime.Now.Ticks;
haveYield = true;
}
}
//大于 _MaxLoadResTime 时间才等待一帧
if (!haveYield || System.DateTime.Now.Ticks - lastYieldTime > _MaxLoadResTime)
{
lastYieldTime = System.DateTime.Now.Ticks;
yield return(null);
}
}
}