MaherKSantina

public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
    return 0
}

MaherKSantina

public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    let itemWidth = max(0, collectionView.frame.size.width - 2 * (cellSpacing + cellPeekWidth))
    return CGSize(width: itemWidth, height: collectionView.frame.size.height)
}

MaherKSantina

public func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
   let leftAndRightInsets = cellSpacing + cellPeekWidth
   return UIEdgeInsets(top: 0, left: leftAndRightInsets, bottom: 0, right: leftAndRightInsets)
}

MaherKSantina

import UIKit
import MSPeekCollectionViewDelegateImplementation

class ViewController: UIViewController {
    
    @IBOutlet weak var collectionView: UICollectionView!
    let delegate = MSPeekCollectionViewDelegateImplementation()

    override func viewDidLoad() {
        super.viewDidLoad()