public void ReleaseUnUsedAssets()
{
List <BaseBundle> tlist = new List <BaseBundle>(mBundleList.values);
for (int i = tlist.Count - 1; i >= 0; i--)
{
BaseBundle tbundle = tlist[i];
if (tbundle.WillBeReleased && tbundle.Loaded)
{
tbundle.Release();
}
}
}