Why isn't my iOS refresh controller working? [duplicate] - ios

Question

This question already exists:
UIRefreshControl not refreshing xml data
Closed 9 years ago.
Can anyone explain why my pull to refresh isn't working? I've called the UIRefresh controller and the "pull to refresh" animation works but the table view doesn't reload the XML data. What am I doing wrong? Please help.
#import "MasterViewController.h"
#import "DetailViewController.h"
#interface MasterViewController () {
NSXMLParser *parser;
NSMutableArray *feeds;
NSMutableDictionary *item;
NSMutableString *title;
NSMutableString *link;
NSString *element;
}
#end
#implementation MasterViewController
- (void)awakeFromNib {
[super awakeFromNib];
}
// Paste Blog feed here
- (void)viewDidLoad {
[super viewDidLoad];
feeds = [[NSMutableArray alloc] init];
NSURL *url = [NSURL URLWithString:#"http://www.placeholder.xml"];
parser = [[NSXMLParser alloc] initWithContentsOfURL:url];
[parser setDelegate:self];
[parser setShouldResolveExternalEntities:NO];
[parser parse];
UIRefreshControl *refreshControl = [UIRefreshControl new];
[refreshControl addTarget:self
action:#selector(refresh:)
forControlEvents:UIControlEventValueChanged];
refreshControl.attributedTitle =
[[NSAttributedString alloc] initWithString:#"Pull to refresh..."];
self.refreshControl = refreshControl;
}
- (void)refresh:(UIRefreshControl *)sender {
// ... your refresh code
NSURL *url = [NSURL URLWithString:#"http://www.placeholder.xml"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
(void)[[NSURLConnection alloc] initWithRequest:request delegate:self];
[sender endRefreshing];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
#pragma mark - Table View
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)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

Answer 1

The idea presented in the answer here should help: stackoverflow.com/a/16347259/1151545
Basically create ur UIRefreshControl then add it as a subview to any UIScrollView. FYI the UITableView is a subclass of UIScrollView