a3-9.swift

viewModel.updateLoadingStatus = { [weak self] () in
    DispatchQueue.main.async {
        let isLoading = self?.viewModel.isLoading ?? false
        if isLoading {
            self?.activityIndicator.startAnimating()
            self?.tableView.alpha = 0.0
        }else {
            self?.activityIndicator.stopAnimating()
            self?.tableView.alpha = 1.0
        }
    }
}
    
viewModel.reloadTableViewClosure = { [weak self] () in
    DispatchQueue.main.async {
        self?.tableView.reloadData()
    }
}