iOS TableView is Empty

//
//  KFBAppDelegate.h
//  KFBNewsroom
//
//  Created by KFB on 10/15/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import <UIKit/UIKit.h>

@class KFBViewController;

@interface KFBAppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@property (strong, nonatomic) KFBViewController *viewController;

@end

//
//  KFBAppDelegate.m
//  KFBNewsroom
//
//  Created by KFB on 10/15/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import "KFBAppDelegate.h"
#import "KFBViewController.h"
#import "ListViewController.h"
#import "WebViewController.h"
#import "ActionAlertsViewController.h"
#import "MarketUpdatesViewController.h"

@implementation KFBAppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.viewController = [[KFBViewController alloc] initWithNibName:@"KFBViewController" bundle:nil];
    ListViewController *lvc = [[ListViewController alloc]initWithStyle:UITableViewStylePlain];
    WebViewController *wvc = [[WebViewController alloc]init];
    [lvc setWebViewController:wvc];
    ActionAlertsViewController *avc = [[ActionAlertsViewController alloc]initWithStyle:UITableViewStylePlain];
    [avc setWebViewController:wvc];
    MarketUpdatesViewController *mvc = [[MarketUpdatesViewController alloc]initWithStyle:UITableViewStylePlain];
    [mvc setWebViewController:wvc];
    self.window.rootViewController = self.viewController;
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    return YES;
}

- (void)applicationWillResignActive:(UIApplication *)application
{
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

- (void)applicationDidBecomeActive:(UIApplication *)application
{
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

- (void)applicationWillTerminate:(UIApplication *)application
{
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

@end

//
//  KFBViewController.h
//  KFBNewsroom
//
//  Created by KFB on 10/15/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface KFBViewController : UIViewController
{
    
}

- (IBAction) gotoSecondView;
- (IBAction) gotoPublicAffairs;
- (IBAction) gotoActionAlerts;
- (IBAction) gotoMarketUpdates;
- (IBAction) gotoMemberBenefits;




@end

//
//  KFBViewController.m
//  KFBNewsroom
//
//  Created by KFB on 10/15/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import "KFBViewController.h"
#import "KFBYouTubeView.h"
#import "ListViewController.h"
#import "ActionAlertsViewController.h"
#import "MarketUpdatesViewController.h"
#import "MemberBenefits.h"

@interface KFBViewController ()

@end

@implementation KFBViewController

- (IBAction)gotoSecondView
{
    // The following lines will load the second view
    KFBYouTubeView *youtubeView = [[KFBYouTubeView alloc] initWithNibName:nil bundle:nil];
    youtubeView.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    // [self presentModalViewController:youtubeView animated:YES];
    [self presentViewController:youtubeView animated:YES completion:nil];
}

- (IBAction)gotoPublicAffairs
{
    ListViewController *publicAffairs = [[ListViewController alloc] initWithNibName:nil bundle:nil];
    publicAffairs.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    // [self presentModalViewController:publicAffairs animated:YES];
    [self presentViewController:publicAffairs animated:YES completion:nil];
}

- (IBAction)gotoActionAlerts
{
    ActionAlertsViewController *actionAlerts = [[ActionAlertsViewController alloc] initWithNibName:nil bundle:nil];
    actionAlerts.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    // [self presentModalViewController:actionAlerts animated:YES];
    [self presentViewController:actionAlerts animated:YES completion:nil];
}

- (IBAction)gotoMarketUpdates
{
    MarketUpdatesViewController *marketUpdates = [[MarketUpdatesViewController alloc] initWithNibName:nil bundle:nil];
    marketUpdates.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    // [self presentModalViewController:marketUpdates animated:YES];
    [self presentViewController:marketUpdates animated:YES completion:nil];
}

- (IBAction)gotoMemberBenefits
{
    MemberBenefits *memberBenefits = [[MemberBenefits alloc] initWithNibName:nil bundle:nil];
    memberBenefits.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    // [self presentModalViewController:memberBenefits animated:YES];
    [self presentViewController:memberBenefits animated:YES completion:nil];
}


- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
}

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

@end

//
//  ListViewController.h
//  Nerdfeed
//
//  Created by KFB on 10/16/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import <Foundation/Foundation.h>

// @interface ListViewController : NSObject

// a forward declaration; we'll import the header in the .m
@class RSSChannel;
@class WebViewController;

@interface ListViewController : UITableViewController
<NSXMLParserDelegate>
{
    NSURLConnection *connection;
    NSMutableData *xmlData;
    RSSChannel *channel;
}
@property (nonatomic, strong)WebViewController *webViewController;

- (void)fetchEntries;


@end

//
//  ListViewController.m
//  Nerdfeed
//
//  Created by KFB on 10/16/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import "ListViewController.h"
#import "RSSChannel.h"
#import "RSSItem.h"
#import "WebViewController.h"

@implementation ListViewController
@synthesize webViewController;

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    NSLog(@"%@ found a %@ element", self, elementName);
    if ([elementName isEqual:@"channel"])
    {
        // If the parser saw a channel, create new instance, store in our ivar
        channel = [[RSSChannel alloc]init];
        
        // Give the channel object a pointer back to ourselves for later
        [channel setParentParserDelegate:self];
        
        // Set the parser's delegate to the channel object
        [parser setDelegate:channel];
    }
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // return 0;
    
    return [[channel items]count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    // return nil;
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"];
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"UITableViewCell"];
    }
    RSSItem *item = [[channel items]objectAtIndex:[indexPath row]];
    [[cell textLabel]setText:[item title]];
    
    return cell;
}

- (void)fetchEntries
{
    // Create a new data container for the stuff that comes back from the service
    xmlData = [[NSMutableData alloc]init];
    
    // Construct a URL that will ask the service for what you want -
    // note we can concatenate literal strings together on multiple lines in this way - this results in a single NSString instance
    NSURL *url = [NSURL URLWithString:@"http://kyfbnewsroom.com/category/public-affairs/feed"];
    
    // Put that URL into an NSURLRequest
    NSURLRequest *req = [NSURLRequest requestWithURL:url];
    
    // Create a connection that will exchange this request for data from the URL
    connection = [[NSURLConnection alloc]initWithRequest:req delegate:self startImmediately:YES];
}

- (id)initWithStyle:(UITableViewStyle)style
{
    self = [super initWithStyle:style];
    
    if (self)
    {
        [self fetchEntries];
    }
    
    return self;
}

// This method will be called several times as the data arrives
- (void)connection:(NSURLConnection *)conn didReceiveData:(NSData *)data
{
    // Add the incoming chunk of data to the container we are keeping
    // The data always comes in the correct order
    [xmlData appendData:data];
}

- (void)connectionDidFinishLoading:(NSURLConnection *)conn
{
    /* We are just checking to make sure we are getting the XML
     NSString *xmlCheck = [[NSString alloc]initWithData:xmlData encoding:NSUTF8StringEncoding];
     NSLog(@"xmlCheck = %@", xmlCheck);*/
    
    // Create the parser object with the data received from the web service
    NSXMLParser *parser = [[NSXMLParser alloc]initWithData:xmlData];
    
    // Give it a delegate - ignore the warning here for now
    [parser setDelegate:self];
    
    //Tell it to start parsing - the document will be parsed and the delegate of NSXMLParser will get all of its delegate messages sent to it before this line finishes execution - it is blocking
    [parser parse];
    
    // Get rid of the XML data as we no longer need it
    xmlData = nil;
    
    // Reload the table.. for now, the table will be empty
    [[self tableView]reloadData];
    
    NSLog(@"%@\n %@\n %@\n", channel, [channel title], [channel infoString]);
}

- (void)connection:(NSURLConnection *)conn didFailWithError:(NSError *)error
{
    // Release the connection object, we're done with it
    connection = nil;
    
    // Release the xmlData object, we're done with it
    xmlData = nil;
    
    // Grab the description of the error object passed to us
    NSString *errorString = [NSString stringWithFormat:@"Fetch failed: %@", [error localizedDescription]];
    
    // Create and show an alert view with this error displayed
    UIAlertView *av = [[UIAlertView alloc]initWithTitle:@"Error" message:errorString delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [av show];
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Push the web view controller onto the navigation stack - this implicitly creates the web view controller's view the first time through
    [[self navigationController]pushViewController:webViewController animated:YES];
    
    // Grab the selected item
    RSSItem *entry = [[channel items]objectAtIndex:[indexPath row]];
    
    // Construct a URL with the link string of the item
    NSURL *url = [NSURL URLWithString:[entry link]];
    
    // Construct a request object with that URL
    NSURLRequest *req = [NSURLRequest requestWithURL:url];
    
    // Load the request into the web view
    [[webViewController webView]loadRequest:req];
    
    // Set the title of the web view controller's navigation item
    [[webViewController navigationItem]setTitle:[entry title]];
}



@end

//
//  RSSChannel.h
//  Nerdfeed
//
//  Created by KFB on 10/16/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface RSSChannel : NSObject <NSXMLParserDelegate>
{
    NSMutableString *currentString;
}

@property (nonatomic, weak) id parentParserDelegate;

@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) NSString *infoString;
@property (nonatomic, readonly, strong) NSMutableArray *items;

@end

//
//  RSSChannel.m
//  Nerdfeed
//
//  Created by KFB on 10/16/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import "RSSChannel.h"
#import "RSSItem.h"

@implementation RSSChannel
@synthesize items, title, infoString, parentParserDelegate;

- (id)init
{
    self = [super init];
    
    if (self)
    {
        // Create the container for the RSSItems this channel has; we'll create the RSSItem class shortly.
        items = [[NSMutableArray alloc]init];
    }
    
    return self;
}

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    NSLog(@"\t%@ found a %@ element", self, elementName);
    
    if ([elementName isEqual:@"title"])
    {
        currentString = [[NSMutableString alloc]init];
        [self setTitle:currentString];
    }
    else if ([elementName isEqual:@"description"])
    {
        currentString = [[NSMutableString alloc]init];
        [self setInfoString:currentString];
    }
    else if ([elementName isEqual:@"item"])
    {
        // When we find an item, create an instance of RSSItem
        RSSItem *entry = [[RSSItem alloc]init];
        
        // Set up its parent as ourselves so we can regain control of the parser
        [entry setParentParserDelegate:self];
        
        // Turn the parser to the RSSItem
        [parser setDelegate:entry];
        
        // Add the item to our array and release our hold on it
        [items addObject:entry];
    }
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)str
{
    [currentString appendString:str];
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
    // If we were in an element that we were collecting the string for, this appropriately releases our hold on it and the permanent ivar keeps ownership of it.  If we weren't parsing such an element, currentString is nill already.
    currentString = nil;
    
    // If the element that ended was the channel, give up control to who gave us control in the first place
    if ([elementName isEqual:@"channel"])
    {
        [parser setDelegate:parentParserDelegate];
    }
}

@end

//
//  RSSItem.h
//  Nerdfeed
//
//  Created by KFB on 10/16/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface RSSItem : NSObject <NSXMLParserDelegate>
{
    NSMutableString *currentString;
}

@property (nonatomic, weak) id parentParserDelegate;

@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) NSString *link;

@end

//
//  RSSItem.m
//  Nerdfeed
//
//  Created by KFB on 10/16/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import "RSSItem.h"

@implementation RSSItem

@synthesize title, link, parentParserDelegate;

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    NSLog(@"\t\t%@ found a %@ element", self, elementName);
    
    if ([elementName isEqual:@"title"])
    {
        currentString = [[NSMutableString alloc]init];
        [self setTitle:currentString];
    }
    else if ([elementName isEqual:@"link"])
    {
        currentString = [[NSMutableString alloc]init];
        [self setLink:currentString];
    }
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)str
{
    [currentString appendString:str];
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
    currentString = nil;
    
    if ([elementName isEqual:@"item"])
    {
        [parser setDelegate:parentParserDelegate];
    }
}

@end

//
//  WebViewController.h
//  Nerdfeed
//
//  Created by KFB on 10/16/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import <Foundation/Foundation.h>

// @interface WebViewController : NSObject
@interface WebViewController : UIViewController

@property (nonatomic, readonly)UIWebView *webView;

@end

//
//  WebViewController.m
//  Nerdfeed
//
//  Created by KFB on 10/16/12.
//  Copyright (c) 2012 com.kfb. All rights reserved.
//

#import "WebViewController.h"

@implementation WebViewController

- (void)loadView
{
    // Create an instance of UIWebView as large as the screen
    CGRect screenFrame = [[UIScreen mainScreen]applicationFrame];
    UIWebView *wv = [[UIWebView alloc]initWithFrame:screenFrame];
    // Tell web view to scale web content to fit within bounds of webview
    [wv setScalesPageToFit:YES];
    
    [self setView:wv];
}

- (UIWebView *)webView
{
    return (UIWebView *)[self view];
}

@end

-(void)viewDidLoad 
{
     [super viewDidLoad];
     [tableView setDelegate: self];
     [tableView setDataSource: self];
}