// Configure layout
        UICollectionViewFlowLayout *flowLayout_D = [[UICollectionViewFlowLayout alloc] init];
        [flowLayout_D setItemSize:CGSizeMake(102, 96)]; //your cell size
        [flowLayout_D setScrollDirection:UICollectionViewScrollDirectionHorizontal];
        [self->mycollectionView setCollectionViewLayout:flowLayout_D];

#pragma mark Collection view layout things

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
    if (collectionView==myCollectionView) {
    return 2.0;
    }
    else
        return 0;
}

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
    if (collectionView==myCollectionView) {
        return 2.0;
    }
    else
        return 0;
}

// Layout: Set Edges
- (UIEdgeInsets)collectionView:
(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
    // return UIEdgeInsetsMake(0,8,0,8);  // top, left, bottom, right
    if (collectionView==myCollectionView) {
    return UIEdgeInsetsMake(0,0,0,0);
    }// top, left, bottom, right
    else
        return  UIEdgeInsetsMake(0,0,0,0);

}