private void StartLoad(LoadItem item)
{
// 设置加载项开始加载
item.isLoading = true;
// 创建加载器
//string urlAbsolute;
//// 判断是否从Persistent目录加载
//if (App.fileManager.FileExistsPersistent(item.url))
// urlAbsolute = new StringBuilder(App.pathManager.persistentDataPathWWW).Append(item.url).ToString();
//else
// urlAbsolute = new StringBuilder(App.pathManager.externalPath).Append(item.url).ToString();
ILoader loader = LoaderFactory.CreateLoader(item.url, null, item.type);
item.loader = loader;
// 加入当前加载器字典
_currentLoaders[item.url] = loader;
// 设置加载回调
loader.completeCallback = LoadComplete;
loader.progressCallback = LoadProgress;
loader.errorCallback = LoadError;
// 开始加载
loader.Start();
// 派发事件
DispatchEvent(ResourceManagerEventArgs.ITEM_START, item);
}
/// <summary>
/// 立即加载资源
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public LoadItem LoadImmediately(LoadItem item)
{
if (item == null)
{
return(null);
}
// 判断内存中是否存在该资源
IAsset asset = App.assetManager.GetAsset(item.id);
if (asset != null)
{
item.asset = asset;
if (item.completeCallback != null)
{
item.completeCallback.Invoke(item);
}
return(item);
}
// 判断是否为ab包
if (item.loadImmediately && item.isAssetBundle && item.type != LoadType.AUDIO_ASSET_BUNDLE)
{
asset = LoadAssetFromAssetBundle(item.url, item.id, item.type, item.cache);
if (asset != null)
{
item.asset = asset;
// 执行加载完成回调
if (item.completeCallback != null)
{
item.completeCallback.Invoke(item);
}
return(item);
}
}
// 内存中不存在则开始加载资源
LoadItem loadItem;
if (_immediateDict.TryGetValue(item.url, out loadItem) == false)
{
// 加载队列中未存在该加载项
_immediateDict[item.url] = item;
// 设置加载项开始加载
item.isLoading = true;
// 创建加载器
//string urlAbsolute;
//// 判断是否从Persistent目录加载
//if (App.fileManager.FileExistsPersistent(item.url))
// urlAbsolute = new StringBuilder(App.pathManager.persistentDataPathWWW).Append(item.url).ToString();
//else
// urlAbsolute = new StringBuilder(App.pathManager.externalPath).Append(item.url).ToString();
ILoader loader = LoaderFactory.CreateLoader(item.url, null, item.type);
item.loader = loader;
// 设置加载回调
loader.completeCallback = LoadCompleteImmediately;
loader.progressCallback = LoadProgressImmediately;
loader.errorCallback = LoadErrorImmediately;
// 开始加载
loader.Start();
}
else
{
// 加载队列中已存在该加载项
loadItem.completeCallback += item.completeCallback;
loadItem.errorCallback += item.errorCallback;
loadItem.progressCallback += item.progressCallback;
}
return(loadItem);
}