Is there a way to set up a NSCollectionView programmatically in Swift?

Question

I\'m coming from the iOS development and I am wondering if there is a way to set up a NSCollectionView programmatically like a UICollectionView in

Answer 1

You need to embed NSCollectionView within NSScrollView. Code below is in Swift 4

Setup NSCollectionView

let layout = NSCollectionViewFlowLayout()
layout.minimumLineSpacing = 4

collectionView = NSCollectionView()
collectionView.dataSource = self
collectionView.delegate = self
collectionView.collectionViewLayout = layout
collectionView.allowsMultipleSelection = false
collectionView.backgroundColors = [.clear]
collectionView.isSelectable = true
collectionView.register(
  Cell.self,
  forItemWithIdentifier: NSUserInterfaceItemIdentifier(rawValue: "Cell")
)

Setup NSScrollView

scrollView = NSScrollView()
scrollView.documentView = collectionView
view.addSubview(scrollView)

Here's a simple NSCollectionViewItem

class Cell: NSCollectionViewItem {
  let label = NSTextField()
  let imageView = NSImageView()

  override func loadView() {
    self.view = NSView()
    self.view.wantsLayer = true
  }
}