gistfile1.txt

- (void)viewDidLoad
{
    [self buildCameraRollLibrary];
}

- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section;
{
    return itemList.count;
}


// creates all cells of the current collectionView
- (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath;
{
    // we're going to use a custom UICollectionViewCell, which will hold an image and its label
    
    SPCell *cell = [cv dequeueReusableCellWithReuseIdentifier:cellID forIndexPath:indexPath];
    
    
    // make the cell's title from title of current MPMediaItem
    
    MPMediaItem *item = [itemList objectAtIndex:indexPath.row];
    NSString* title = [item valueForProperty:MPMediaItemPropertyTitle];
    cell.titleLabel.text = [NSString stringWithFormat:@"%@", title];
    
    NSNumber *duration=[item valueForProperty:MPMediaItemPropertyPlaybackDuration];
    double seconds = duration.doubleValue;
    
    int secondsInt = round(seconds);
	int minutes = secondsInt/60;
	secondsInt -= minutes*60;
    
    cell.durationLabel.text = [NSString stringWithFormat:@"%.2i:%.2i", minutes, secondsInt];
    cell.thumbnail.image = [thumbnails objectAtIndex:indexPath.row];
    return cell;
}