Space between collection view cells is always 0 - ios

Question

I am trying to have a space between my cells, but for some reason it is always 0. What am I doing wrong?
import UIKit
class AlbumPlayerProgressBar: UICollectionView {
...
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
self.register(UINib(nibName: "ProgressBarCell", bundle: nil), forCellWithReuseIdentifier: NSStringFromClass(ProgressBarCell.self))
self.dataSource = self
self.delegate = self
}
}
extension AlbumPlayerProgressBar: UICollectionViewDataSource
{
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return numOfSlides
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: NSStringFromClass(ProgressBarCell.self), for: indexPath) as! ProgressBarCell
...
return cell
}
}
extension AlbumPlayerProgressBar: UICollectionViewDelegateFlowLayout
{
func collectionView(_ collectionView: UICollectionView, layout: UICollectionViewLayout, sizeForItemAt: IndexPath) -> CGSize
{
return CGSize(width: segmentWidth, height: segmentHeight)
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat
{
return 100
}
}

Answer 1

You can use minimumInteritemSpacingForSectionAt and minimumLineSpacingForSectionAt , and set the return value to what space you want:
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
return 1.0
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
return 1.0
}