gistfile1.txt

#import "CollectionViewController.h"
#import "CollectionViewCell.h"
#import "NSDate+NVTimeAgo.h"
#import <SDWebImage/UIImageView+WebCache.h>

@interface CollectionViewController ()
{
    NSUInteger currentIndex;
    MWFeedInfo *feedInfo;
}
@end

@implementation CollectionViewController
@synthesize itemsToDisplay;


- (void)viewDidLoad {
    [super viewDidLoad];

    parsedItems = [[NSMutableArray alloc] init];
    self.itemsToDisplay = [NSArray array];
    self.title = @"Feeds";
    currentIndex = 0;
    [self parseNextfeed];
    
    }

- (void) parseNextfeed
{
   
    
        NSURL *feedURL = [NSURL URLWithString:[_feedurl objectAtIndex:currentIndex++]];
        feedParser = [[MWFeedParser alloc] initWithFeedURL:feedURL];
        feedParser.delegate = self;
        feedParser.feedParseType = ParseTypeFull;
        feedParser.connectionType = ConnectionTypeAsynchronously;
        [feedParser parse];
    
}

- (void)updateTableWithParsedItems {
    self.itemsToDisplay = [parsedItems sortedArrayUsingDescriptors:
                           [NSArray arrayWithObject:[[NSSortDescriptor alloc] initWithKey:@"date"
                                                                                ascending:NO]]];
    
    self.collectionView.userInteractionEnabled = YES;
    self.collectionView.alpha = 1;
    [self.collectionView reloadData];
}

#pragma mark -
#pragma mark MWFeedParserDelegate

- (void)feedParserDidStart:(MWFeedParser *)parser {
    NSLog(@"Started Parsing: %@", parser.url);
}

- (void)feedParser:(MWFeedParser *)parser didParseFeedInfo:(MWFeedInfo *)info {
    NSLog(@"Parsed Feed Info: “%@”", info.title);
    feedInfo = info;
}

- (void)feedParser:(MWFeedParser *)parser didParseFeedItem:(MWFeedItem *)item {
    NSLog(@"Parsed Feed Item: “%@”", item.title);
    if (item) [parsedItems addObject:@{@"feed":feedInfo, @"item":item}];
}

- (void)feedParserDidFinish:(MWFeedParser *)parser {
    NSLog(@"Finished Parsing%@", (parser.stopped ? @" (Stopped)" : @""));
    [self updateTableWithParsedItems];
    
    if (currentIndex < _feedurl.count) {
       
        [self parseNextfeed];
    }
   
 
}
- (void)feedParser:(MWFeedParser *)parser didFailWithError:(NSError *)error {
    NSLog(@"Finished Parsing With Error: %@", error);
    if (parsedItems.count == 0) {
         // Show failed message in title
    } else {
        // Failed but some items parsed, so show and inform of error
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Parsing Incomplete"
                                                        message:@"There was an error during the parsing of this feed. Not all of the feed items could parsed."
                                                       delegate:nil
                                              cancelButtonTitle:@"Dismiss"
                                              otherButtonTitles:nil];
        [alert show];
    }
    [self updateTableWithParsedItems];
    
}

#pragma mark <UICollectionViewDataSource>

- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {

    return 1;
}


- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return [itemsToDisplay count];
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    CollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"Cell" forIndexPath:indexPath];
    
    MWFeedItem *item = [[itemsToDisplay objectAtIndex:indexPath.row] objectForKey:@"item"];
    // Configure the cell
    cell.titleLabel.text = [item title];
    cell.pubDateLabel.text = [item.date formattedAsTimeAgo];

    MWFeedInfo *info = [[itemsToDisplay objectAtIndex:indexPath.row] objectForKey:@"feed"];
   
    cell.siteLabel.text = [info title];
    
    return cell;
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    
    if ([[segue identifier] isEqualToString:@"showDetail"]) {
        CollectionViewCell *cell = (CollectionViewCell *)sender;
        NSIndexPath *indexPath = [self.collectionView indexPathForCell:cell];
        MWFeedItem *item = [itemsToDisplay objectAtIndex:indexPath.item];
        [[segue destinationViewController] setItem:item];
    }}


@end