dataSource.emptyDataSourceView = createEmptybackgroundView()

func createEmptybackgroundView() -> UIView {
    let emptyContainerView = UIView()

    let emptyViewLabel = UILabel()
    emptyViewLabel.translatesAutoresizingMaskIntoConstraints = false
    emptyViewLabel.text = "Still loading data... :)"
    emptyViewLabel.font = UIFont.boldSystemFont(ofSize: 25)
    emptyViewLabel.numberOfLines = 0
    emptyViewLabel.textAlignment = .center
    
    let activityView = UIActivityIndicatorView(style: UIActivityIndicatorView.Style.gray)
    activityView.translatesAutoresizingMaskIntoConstraints = false
    activityView.hidesWhenStopped = true
    
    emptyContainerView.addSubview(emptyViewLabel)
    emptyContainerView.addSubview(activityView)
    
    let paddingConstant: CGFloat = 12.0
    emptyViewLabel.leadingAnchor.constraint(equalTo: emptyContainerView.leadingAnchor, constant: paddingConstant).isActive = true
    emptyViewLabel.trailingAnchor.constraint(equalTo: emptyContainerView.trailingAnchor, constant: -paddingConstant).isActive = true
    emptyViewLabel.centerYAnchor.constraint(equalTo: emptyContainerView.centerYAnchor).isActive = true
    emptyViewLabel.heightAnchor.constraint(equalToConstant: 50).isActive = true
    
    
    activityView.topAnchor.constraint(equalTo: emptyViewLabel.bottomAnchor, constant: paddingConstant).isActive = true
    activityView.centerXAnchor.constraint(equalTo: emptyContainerView.centerXAnchor).isActive = true
    
    activityView.startAnimating()

    return emptyContainerView
}