如何减少情节提要中 UICollectionView 单元格之间的填充空间？

Question

I want to have 3 cells in one row and I am only able to place 2 cells in the collection view

Answer 1

将UICollectionViewDelegateFlowLayout的minimumInteritemSpacingForSectionAt和minimumLineSpacingForSectionAt方法修改为更小的值：

var reducedPadding: CGFloat = 8

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
    return reducedPadding
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
    return reducedPadding
}