How to set the collection view cell size exactly equal to the collection view in iOS?

Question

I want to set a collection view where it is only displayed one element at the time and it scrolls horizontally. I want to know how to set the same size for both if the colle

Answer 1

Try this code:

To set collectionView scroll Direction Programmically.

override func viewDidLoad() {
    super.viewDidLoad()
       if let layout = collectionView.collectionViewLayout as? UICollectionViewFlowLayout {
       layout.scrollDirection = .horizontal
    }
    }

To set collectionView layout

     func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: IndexPath) -> CGSize {
      let layout = collectionView.collectionViewLayout as! UICollectionViewFlowLayout
      layout.sectionInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
      layout.minimumInteritemSpacing = 0
      layout.minimumLineSpacing = 0
      layout.invalidateLayout()

      return CGSize(width: self.view.frame.width, height:(self.view.frame.height) // Set your item size here
     }

Note: Layout works tested in Swift 3. But, I want you to consider using page view instead.If you not passing any data from CollectionView.