Xamarin.iOS
Aggiunta di UIRefreshControl a una vista tabella

Aggiunta di un UIRefreshControl a un TableView

ipotesi:

TableView - riferimento a TableView

DataSource - è una classe che eredita UITableViewSource

DataSource.Objects - è un elenco pubblico <object> (), accessibile da UIViewController

private UIRefreshControl refreshControl;

public override void ViewDidLoad()
{
    base.ViewDidLoad();

    // Set the DataSource for the TableView
    TableView.Source = dataSource = new DataSource(this);

    // Create the UIRefreshControl
    refreshControl = new UIRefreshControl();

    // Handle the pullDownToRefresh event
    refreshControl.ValueChanged += refreshTable;

    // Add the UIRefreshControl to the TableView
    TableView.AddSubview(refreshControl);
}

private void refreshTable(object sender, EventArgs e)
{
    fetchData();
    refreshControl.EndRefreshing();
    TableView.ReloadData();
}

private void fetchData()
{
    var objects = new List<object>();
    // fetch data and store in objects.
    dataSource.Objects = objects;
}