UIRefreshcontrol jitters when pulled down and held

Question

I have created a UIRefreshcontrol in my tableviewcontroller as follows in the viewdidload method :

    refresh = [UIRefreshControl.alloc init];
    refresh.a         


        

Answer 1

My solution is similar to the accepted solution. The idea is to update your table view only after the view is at the right place. Therefore, we can add a variable to track if we need to update the view when the scroll view is completely bounced back (don't update it while decelerating).

Also, always update your table view before ending the refreshControl.

// The action function of refreshControl
@objc private func refresh() {
    DispatchQueue.global(qos: .utility).async {
        // Update data
        // ......

        // Update the table view
        DispatchQueue.main.async {
            if self.tableView.isDragging == false {
                self.tableView.reloadData()
                self.myRefreshControl.endRefreshing()
            } else {
                self.needEndRefreshing = true
            }
        }
    }
}

override func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
    if self.needEndRefreshing {
        self.tableView.reloadData()
        self.myRefreshControl.endRefreshing()
        self.needEndRefreshing = false
    }
}