Objective-C Refresh Table View (RSS/xCode)

I'm trying to implement a pull-to-refresh feature on my RSS feed table. The list pulls normally when loading the app, but I essentially need to replicate that for the pull-down.

Could anyone help as to why the code isn't working?

#import "RSSTableViewController.h"
#import "RSSDetailViewController.h"

@interface RSSTableViewController () {


    NSXMLParser *parser;
    NSMutableArray *feeds;
    NSMutableDictionary *item;
    NSMutableString *title;
    NSMutableString *link;
    NSString *element;

}

@end

@implementation RSSTableViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // RSS Settings
    feeds = [[NSMutableArray alloc] init];
    NSURL *url = [NSURL URLWithString:@"http://ift.tt/1AKPEEt"];
    //
    // BBC RSS - http://ift.tt/1Rjha6i
    //
    parser = [[NSXMLParser alloc] initWithContentsOfURL:url];
    [parser setDelegate:self];
    [parser setShouldResolveExternalEntities:NO];
    [parser parse];

    // Pull to Refresh
    UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
    [self.tableView addSubview:refreshControl];
    [refreshControl addTarget:self action:@selector(refresh:) forControlEvents:UIControlEventValueChanged];

}


    //Refresh handler
- (void)refresh:(UIRefreshControl *)refreshControl {


    [self.rssTableView reloadData];
    [refreshControl endRefreshing];
}




- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
    return feeds.count;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];
    cell.textLabel.text = [[feeds objectAtIndex:indexPath.row] objectForKey:@"title"];

    return cell;
}



- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {

    element = elementName;

    if ([element isEqualToString:@"item"]) {

        item = [[NSMutableDictionary alloc]init];
        title = [[NSMutableString alloc]init];
        link = [[NSMutableString alloc]init];
    }


}



- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {

    if ([elementName isEqualToString:@"item"]) {

        [item setObject:title forKey:@"title"];
        [item setObject:link forKey:@"link"];

        [feeds addObject:[item copy]];

    }

}



-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {

    if ([element isEqualToString:@"title"]) {
        [title appendString:string];
    }
    else if ([element isEqualToString:@"link"]) {
        [link appendString:string];

    }

}


-(void)parserDidEndDocument:(NSXMLParser *)parser {

    [self.tableView reloadData];

}


-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

    if ([[segue identifier] isEqualToString:@"showDetail"]) {
        NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
        NSString *string = [feeds[indexPath.row] objectForKey:@"link"];
        [[segue destinationViewController] setUrl:string];

    }

}



@end

I'm really stuck here and need to know to move on! Please do help!