inter spacing columns of uicollectionview

Question

I am trying to make a grid of cells by using UICollectionView. I would remove all padding, spacing among cells. I used the layout methods and properties

-(CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section
{
    return 0;
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath 
{
    CGSize retval = CGSizeMake(120, 120);
      return retval;
}

- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
{
    return UIEdge

    InsetsMake(0, 0, 0, 0);
}

But I get always a space among columns.

enter image description here

possible duplicate of [how do you determine spacing between cells in UICollectionView flowLayout](http://stackoverflow.com/questions/13017257/how-do-you-determine-spacing-between-cells-in-uicollectionview-flowlayout) — Caleb, Jul 09 '13 at 08:57
It is not a duplicate. Before writing the question I viewed the question you cited. — gdm, Jul 10 '13 at 07:28
It's the same issue -- you want your cells to butt against each other with no spaces, but the collection layout distributes extra space between the cells. The duplicate question is asking for the same thing. My comment on [my answer](http://stackoverflow.com/a/13018243/643383) explains the issue in a little more detail, and the other answers explain how to create a layout that left justifies items, leaving any extra space to the right. If you're asking something different, please clarify the question. — Caleb, Jul 10 '13 at 08:03

score 2 · Answer 1 · answered Jul 09 '13 at 08:52

Cells in UICollectionView are always distributed evenly (with equal horizontal margins) by default, there's no "maximum distance between cells" property. If you want no space between columns, you should either choose the cell size that will fill the entire space (i.e. 256x256 for iPad in landscape mode), or make your own custom layout by subclassing UICollectionViewLayout and using it with your collection view.

score 0 · Answer 2 · answered Jul 09 '13 at 08:53

0

You're only setting the minimum spacing between the cells, which is all you can do. It looks like the width of your collection view is somewhat greater than the width of the cells that fit in the row, so the layout distributes the extra space between the cells. Two things you could try are:

set the width of the collection view to a multiple of the width of a cell
create your own UICollectionViewLayout subclass that arranges the cells more to your liking

answered Jul 09 '13 at 08:53

Caleb

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thank you both. I will implement a CustomLayout and I'll post the result in the question. – gdm Jul 09 '13 at 10:02
Better to post the result in an answer. It's OK to answer your own question. – Caleb Jul 09 '13 at 11:11

inter spacing columns of uicollectionview

2 Answers2