public IAsyncTask LoadAssetAsync <T>(string assetPath, Action <bool, T> callback) where T : UnityEngine.Object
{
string assetBundleName = mAssetManifest[assetPath];
LoadAssetTask <T> assetTask = new LoadAssetTask <T>(assetPath, assetBundleName, mAssetBundleHelper, callback);
IAsyncTask bundleTask = mAssetBundleHelper.LoadAssetBundleAsync(assetBundleName, assetTask.OnAssetBundleLoadCompleted);
assetTask.bundleTask = bundleTask;
return(assetTask);
}