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 iOS? And add the NSCollectionViewItems in code. Or is the only way to set up a NSCollectionView to use bindings?

Thank You!

Answer 1

Thanks to @stevesliva for pointing me to this SO answer. I converted it to Swift. This is what I got.

I am creating a NSCollectionView in the ViewController:

import Cocoa

class ViewController: NSViewController {

    var titles = [String]()
    var collectionView: NSCollectionView?

    override func viewDidLoad() {
        super.viewDidLoad()
    
        self.titles = ["Banana", "Apple", "Strawberry", "Cherry", "Pear", "Pineapple", "Grape", "Melon"]
        collectionView = NSCollectionView(frame: self.view.frame)
        collectionView!.itemPrototype = CollectionViewItem()
        collectionView!.content = self.titles
        collectionView!.autoresizingMask = NSAutoresizingMaskOptions.ViewWidthSizable | NSAutoresizingMaskOptions.ViewMaxXMargin | NSAutoresizingMaskOptions.ViewMinYMargin | NSAutoresizingMaskOptions.ViewHeightSizable | NSAutoresizingMaskOptions.ViewMaxYMargin
    
        var index = 0
        for title in titles {
            var item = self.collectionView!.itemAtIndex(index) as! CollectionViewItem
            item.getView().button?.title = self.titles[index]
            index++
        }
        self.view.addSubview(collectionView!) 
    }
}

The created CollectionViewItem in the ViewController just load a view, where I set up the item view itself.

import Cocoa

class CollectionViewItem: NSCollectionViewItem {

    var itemView: ItemView?

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
    }

    override func loadView() {
        self.itemView = ItemView(frame: NSZeroRect)
        self.view = self.itemView!
    }

    func getView() -> ItemView {
        return self.itemView!
    }
}

The view itself:

import Cocoa

class ItemView: NSView {

    let buttonSize: NSSize = NSSize(width: 100, height: 20)
    let itemSize: NSSize = NSSize(width: 120, height: 40)
    let buttonOrigin: NSPoint = NSPoint(x: 10, y: 10)

    var button: NSButton?

    override func drawRect(dirtyRect: NSRect) {
        super.drawRect(dirtyRect)

        // Drawing code here.
    }

    override init(frame frameRect: NSRect) {
        super.init(frame: NSRect(origin: frameRect.origin, size: itemSize))
        let newButton = NSButton(frame: NSRect(origin: buttonOrigin, size: buttonSize))
        newButton.bezelStyle = NSBezelStyle.RoundedBezelStyle
        self.addSubview(newButton)
        self.button = newButton;
    }

    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    func setButtonTitle(title: String) {
        self.button!.title = title
    }
}

To set the button title, I am using kind of a hack. (the for-loop in the ViewController) If there is a better way to set the title please feel free to leave a comment.