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POsegueing from collection view to detail view problems
 

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  1. POsegueing from collection view to detail view problems
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    <p>I'm slowly going out of my mind trying to replicate an iPhone photo gallery with a collection view segueing to a detail view and I want the detail view to have paging just like the photo gallery does. The code I have so far seems to load but then has an error. I have exemption breakpoints on and the breakpoint 1.1 crash point is the line self.imageView.image = img;. This doesn't say anything about the error on the log other than (lldb).</p> <p>I was wondering if I can borrow someones genius to point out where I have gone wrong and perhaps correct it? I would also like to take a title for each image across to the detail view but didn't know how/where to add this in. </p> <p>The code I have is:</p> <pre><code>#import "MarbleCollectionViewController.h" #import "DetailViewController.h" @interface MarbleCollectionViewController () { NSArray *marbleImages; } @end @implementation MarbleCollectionViewController - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; marbleImages = [NSArray arrayWithObjects:@"arabescato.jpg", @"bianco-carrara.jpg", @"botticino-classico2.jpg", @"Calacatta_Oro.jpg", @"crema-marfil-3.jpg", @"crema-valencia.jpg", @"emperador-dark.jpg", @"jura-beige.jpg", @"nero-marquina.jpg", @"perlato-olympo.jpg", @"rojo-alicante_marbleGRP1.jpg", nil]; } - (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section { return marbleImages.count; } - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{ static NSString *identifier = @"Cell"; UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath]; UIImageView *marbleImageView = (UIImageView *)[cell viewWithTag:100]; marbleImageView.image = [UIImage imageNamed:[marbleImages objectAtIndex:indexPath.row]]; return cell; } - (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath { [self performSegueWithIdentifier:@"detailView" sender:collectionView]; } - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { if ([segue.identifier isEqualToString:@"detailView"]) { DetailViewController *destViewController = segue.destinationViewController; NSIndexPath *indexPath = [[self.collectionView indexPathsForSelectedItems] objectAtIndex:0]; destViewController.img = [marbleImages objectAtIndex:indexPath.row]; [self.collectionView deselectItemAtIndexPath:indexPath animated:NO]; } } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end </code></pre> <p>and the detail view is:</p> <pre><code>#import "DetailViewController.h" @interface DetailViewController () @end @implementation DetailViewController @synthesize imageView, img; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; self.imageView.image = img; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end </code></pre> <p>A massive thank you for any help you can offer is in order and I really really do appreciate it.</p>
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    1. USDavid
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    2. COI have exemption breakpoints on and the breakpoint 1.1 crash point is the line self.imageView.image = img;. This doesn't say anything about the error on the log other than (lldb)
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