gistfile1.m

// Set up the UIRefreshControl.
self.refreshControl = [[UIRefreshControl alloc] init];
[self.refreshControl addTarget:self
                        action:@selector(refreshInvoked:forState:)
              forControlEvents:UIControlEventValueChanged];

// Create a UITableViewController so we can use a UIRefreshControl.
UITableViewController *tvc = [[UITableViewController alloc] initWithStyle:self.tableView.style];
tvc.tableView = self.tableView;
tvc.refreshControl = self.refreshControl;
[self addChildViewController:tvc];