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- (id)init {
    self = [super initWithStyle:UITableViewStyleGrouped];
    if (self) {
        // add the handler to the UITableView
        [[self tableView] addPullToRefreshWithActionHandler:^{
            // do something, in this case add a new item to our data source
            [self addNewItem:nil];
            // tell pull-to-refresh to stop animating
            [[[self tableView] pullToRefreshView] stopAnimating];
        }];

ninthspace

- (id)init {
    self = [super initWithStyle:UITableViewStyleGrouped];

    return self;
}