To handle pull-to-refresh functionality in UIKit with Swift, you can utilize the UIRefreshControl
class, which offers a simple way to implement this feature in table views or collection views. Here's how you can set it up:
import UIKit
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
let tableView = UITableView()
let refreshControl = UIRefreshControl()
override func viewDidLoad() {
super.viewDidLoad()
setupTableView()
setupRefreshControl()
}
func setupTableView() {
tableView.dataSource = self
tableView.delegate = self
tableView.frame = view.bounds
view.addSubview(tableView)
}
func setupRefreshControl() {
refreshControl.addTarget(self, action: #selector(refreshData), for: .valueChanged)
tableView.refreshControl = refreshControl
}
@objc func refreshData() {
// Add your data refreshing logic here
// Simulating a network call with a delay
DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
self.refreshControl.endRefreshing()
// Update your data source and reload the table view
self.tableView.reloadData()
}
}
// MARK: - UITableViewDataSource
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 20 // example static count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell()
cell.textLabel?.text = "Row \(indexPath.row + 1)"
return cell
}
}
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