Show Loader while loading the channels for the first time

UIKIt Version : 3.0
OS : iOS 15.5

I would to know if there is a way to show the loader in the screen while loading the channels for the first time in SBUGroupChannelListViewController

Currently I see blank screen and it shows the channels once they are fetched from backend.

Please let me know how to make the app to show loaders while loading the channels.

-Janakiram