Elastic pull to refresh for iOS developed in Swift

pod 'DGElasticPullToRefresh'

// Initialize tableView
let loadingView = DGElasticPullToRefreshLoadingViewCircle()
loadingView.tintColor = UIColor(red: 78/255.0, green: 221/255.0, blue: 200/255.0, alpha: 1.0)
tableView.dg_addPullToRefreshWithActionHandler({ [weak self] () -> Void in
    // Add your logic here
    // Do not forget to call dg_stopLoading() at the end
    self?.tableView.dg_stopLoading()
}, loadingView: loadingView)
tableView.dg_setPullToRefreshFillColor(UIColor(red: 57/255.0, green: 67/255.0, blue: 89/255.0, alpha: 1.0))
tableView.dg_setPullToRefreshBackgroundColor(tableView.backgroundColor!)

deinit {
    tableView.dg_removePullToRefresh()
}

func dg_addPullToRefreshWithActionHandler(_ actionHandler: @escaping () -> Void)

func dg_addPullToRefreshWithActionHandler(_ actionHandler: @escaping () -> Void, loadingView: DGElasticPullToRefreshLoadingView?)

func setPullProgress(_ progress: CGFloat)
func startAnimating()
func stopLoading()

func dg_removePullToRefresh()

func dg_startLoading()

func dg_setPullToRefreshBackgroundColor(_ color: UIColor)

func dg_setPullToRefreshFillColor(_ color: UIColor)