UIRefreshControl

import UIKit
extension UIRefreshControl {
    func beginRefreshingManually(_ tintColor:UIColor) {
        self.tintColor = tintColor
        if let scrollView = superview as? UIScrollView {
            scrollView.setContentOffset(CGPoint(x: 0, y:scrollView.contentOffset.y - frame.height), animated: false)
        }
        beginRefreshing()
        self.sendActions(for: .valueChanged)
        
    }
}