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    <p>It would appear that you are obtaining the wrong Cell. Sending the <code>dequeueReusableCellWithReuseIdentifier:forIndexPath:</code> message does <em>not</em> obtain the cell in use in the view at the indexPath in the second parameter, but dequeues a previously used but reusable cell; if no reusable cell is available, a new one is created. See Reference 1 below. </p> <p>Replacing:</p> <pre><code>ProductCollectionViewCell* cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"ProductReuseID" forIndexPath:indexPath]; </code></pre> <p>With:</p> <pre><code>ProductCollectionViewCell* cell = [collectionView cellForItemAtIndexPath:indexPath]; </code></pre> <p>In your code above, should give you the proper cell to work with.</p> <p>Here is your fist example, rewritten. </p> <pre><code>- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath(NSIndexPath *)indexPath { // animate the cell user tapped on UICollectionViewCell *cell = [collectionView cellForItemAtIndexPath:indexPath]; [UIView animateWithDuration:5.0 delay:0 options:(UIViewAnimationOptionAllowUserInteraction) animations:^{ NSLog(@"animation start"); [cell setBackgroundColor:[UIColor colorWithRed: 180.0/255.0 green: 238.0/255.0 blue:180.0/255.0 alpha: 1.0]]; } completion:^(BOOL finished){ NSLog(@"animation end"); [cell setBackgroundColor:[UIColor whiteColor]]; } ]; } </code></pre> <p>References:</p> <ul> <li><a href="http://developer.apple.com/library/ios/#documentation/UIKit/Reference/UICollectionView_class/Reference/Reference.html#//apple_ref/occ/cl/UICollectionView" rel="noreferrer">http://developer.apple.com/library/ios/#documentation/UIKit/Reference/UICollectionView_class/Reference/Reference.html#//apple_ref/occ/cl/UICollectionView</a></li> </ul>
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    1. USKevin Viggers
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    1. COThanks a lot! That solved the problem...
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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