UICollectionView - distance between cells?

Question

I'm using a UICollectionView with the cell width of 67, right now I am using a flow layout.

I have 3 cells in a row with 30px space between cells. How can make that distance less, so that I can fit four cells in a row? Does this method have something to do with it?

 - (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
 {
    return UIEdgeInsetsMake(10, 10, 10, 10);
 }

Answer 1

From this. You need to change minimumInteritemSpacing and minimumLineSpacing.

UICollectionViewFlowLayout *flow = [[UICollectionViewFlowLayout alloc] init];
flow.itemSize = CGSizeMake(cellWidth, cellHeight);
flow.scrollDirection = UICollectionViewScrollDirectionHorizontal;
flow.minimumInteritemSpacing = 0;
flow.minimumLineSpacing = 0;
mainCollectionView.collectionViewLayout = flow;