How to change the background color of an NSView loaded from nib/xib in Swift

I have an NSWindow and in the UI designer I have set its top-level view to be a custom NSView type I created (class Canvas : NSView).

This worked for me in xcode 7/swift 2.0. In order to set its background color in code you need to override NSView's awakeFromNib() function as such:

import Cocoa

class Canvas : NSView {

    

    override func awakeFromNib() {

        self.layer?.backgroundColor = NSColor(calibratedRed: 1, green: 1, blue: 1, alpha: 1).CGColor //set background to white ( not sure if it should be called before parent func)

        super.awakeFromNib()

    }

}

@NSApplicationMain

class AppDelegate: NSObject, NSApplicationDelegate {

    

    @IBOutlet weak var canvas: Canvas!

    @IBOutlet weak var window: NSWindow!

    

    func applicationDidFinishLaunching(aNotification: NSNotification) {

    }

    

    func applicationWillTerminate(aNotification: NSNotification) {

        // Insert code here to tear down your application

    }

    

}