gistfile1.txt

//
//  ViewController.m
//  collection
//
//  Created by Joseph Anderson on 8/11/14.
//  Copyright (c) 2014 ifd. All rights reserved.
//

#import "ViewController.h"
#import "PhotoLibraryCell.h"

@interface ViewController () <UICollectionViewDelegate, UICollectionViewDataSource>
@property (weak, nonatomic) IBOutlet UICollectionView *collectionView;

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
    self.collectionView.dataSource = self;
    self.collectionView.delegate = self;
    [self.collectionView registerNib:[UINib nibWithNibName:@"PhotoLibraryCell" bundle:nil] forCellWithReuseIdentifier:@"cell"];
    
    UICollectionViewFlowLayout *flowLayout = (UICollectionViewFlowLayout *)self.collectionView.collectionViewLayout;
}

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

- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
    return 1;
}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return 20;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    PhotoLibraryCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cell" forIndexPath:indexPath];
    cell.idLabel.text = [NSString stringWithFormat:@"%ld", (long)indexPath.row];
    return cell;
}

@end