/*

Copyright (C) 2015 Apple Inc. All Rights Reserved.

See LICENSE.txt for this sample’s licensing information

Abstract:

The primary view controller for this app.

*/

#import "ViewController.h"

#import "DetailViewController.h"

#import "Cell.h"

NSString *kDetailedViewControllerID = @"DetailView";    // view controller storyboard id

NSString *kCellID = @"cellID";                          // UICollectionViewCell storyboard id

@implementation ViewController

- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section;

{

    return 32;

}

- (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath;

{

    // we're going to use a custom UICollectionViewCell, which will hold an image and its label

    //

    Cell *cell = [cv dequeueReusableCellWithReuseIdentifier:kCellID forIndexPath:indexPath];

    // make the cell's title the actual NSIndexPath value

    cell.label.text = [NSString stringWithFormat:@"{%ld,%ld}", (long)indexPath.row, (long)indexPath.section];

    // load the image for this cell

    NSString *imageToLoad = [NSString stringWithFormat:@"%ld", (long)indexPath.row];

    cell.image.image = [UIImage imageNamed:imageToLoad];

    return cell;

}

// the user tapped a collection item, load and set the image on the detail view controller

//

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

{

    if ([segue.identifier isEqualToString:@"showDetail"])

    {

        NSIndexPath *selectedIndexPath = [self.collectionView indexPathsForSelectedItems][0];

        // load the image, to prevent it from being cached we use 'initWithContentsOfFile'

        NSString *imageNameToLoad = [NSString stringWithFormat:@"%ld_full", (long)selectedIndexPath.row];

        UIImage *image = [UIImage imageNamed:imageNameToLoad];

        DetailViewController *detailViewController = segue.destinationViewController;

        detailViewController.image = image;

    }

}

@end