How to Pull Up Refresh in UITableView or UICollectionView

Step 1 :-  Create Object

var pullRefresh : UIRefreshControl = UIRefreshControl()

Step 2 :- initialise with Controller

 pullRefresh.addTarget(self, action: #selector(self.pullRefreshView), for: .valueChanged)

 pullRefresh.tintColor = UIColor.clear

 self.tblOjbect!.addSubview(pullRefresh)

 self.tblOjbect!.alwaysBounceVertical = true

 self.tblOjbect!.bounces = true

Step 3:- Create Objective Functions

@objc func pullRefreshView()

{

    pullRefresh.endRefreshing()

    // Write here what you what on pull Up Refresh

}