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POUICollectionView images not showing
 

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    <p>I have an issue with the images not showing, even though they are loading. I have tried this several different ways and the same result... no images. I do get white rectangles that are the size and color specified in the Storyboard. I get the correct number of rectangles in the popover. The log shows the names and ids correctly.</p> <p>If I call the array directly, I get the same result... white rectangles.</p> <p>My target is iOS7. Running Xcode 5.0.2. Images are coming from a SQL database. This is a live app, which I am updating to full iOS7 and where I am swapping out a custom grid layout for UICollectionView. Using a CollectionViewController, embedded into a NavigationController, which is accessed via a UIButton. As you can see, there is no custom cell. The images are to show in a popover and are then selectable by the user to change the background of the underlying view.</p> <pre><code>- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"BckgndCell" forIndexPath:indexPath]; NSDictionary * tempDict = [_arrayOfBckgnds objectAtIndex:indexPath.row]; NSNumber *buttonTagNumber = (NSNumber *)[tempDict objectForKey:@"id"]; int buttonTag = [buttonTagNumber intValue]; NSString *tempImage = [tempDict objectForKey:@"fileName"]; NSLog(@"Filename: %@", tempImage); NSLog(@"ButtonTagNumber: %@", buttonTagNumber); UIImageView *image = [[UIImageView alloc]init]; image.image = [UIImage imageNamed:tempImage]; NSLog(@"Image.image: %@", image.image); // needed for selecting the background in didSelectItemAtIndexPath _bgtag = buttonTag; return cell; } </code></pre> <p>The fix which includes actually naming the BackgroundCell (duh) in the cellForItemAtIndexPath method and creating a small method in the BackgroundCell controller to set the image.</p> <pre><code>- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { BackgroundCell *cell = (BackgroundCell *)[collectionView dequeueReusableCellWithReuseIdentifier:@"BckgndCell" forIndexPath:indexPath]; NSDictionary * tempDict = [_arrayOfBckgnds objectAtIndex:indexPath.row]; NSNumber *buttonTagNumber = (NSNumber *)[tempDict objectForKey:@"id"]; int buttonTag = [buttonTagNumber intValue]; NSString *tempImage = [tempDict objectForKey:@"fileName"]; [cell setImage:[UIImage imageNamed:tempImage]]; // needed for selecting the background in didSelectItemAtIndexPath _bgtag = buttonTag; return cell; } </code></pre> <p>The main cell code;</p> <pre><code>- (id)initWithFrame:(CGRect)frame { _backgroundImage = [[UIImageView alloc] initWithFrame:self.contentView.bounds]; [self.contentView addSubview:_backgroundImage]; if (self) { // Initialization code } return self; } -(void)setImage:(UIImage *)image { _backgroundImage.image = image; } </code></pre>
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