Button action selector inside class - swift

Question

I recently started developing in Swift (normally embedded C developer).
I want to create some button (later more than one) programmatically and change its label (just for practice).
For this I created a button class, which contains the button init and the callback function. My problem is that it seems like the #selector is not pointing to the instance of the button class the way I expected it will, so a button click does nothing. Can you tell me what I am doing wrong?
#objc class buttontest : NSObject{
let button = NSButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
#objc func printSomething() {
print("Hello")
self.button.title="TEST13"
}
func buttoninit() -> NSButton{
self.button.title="Test"
self.button.bezelStyle=NSButton.BezelStyle.rounded
self.button.target=self;
//button.action = Selector(ViewController.printSomething)
self.button.action = #selector(self.printSomething)
return self.button
}
}
class ViewController: NSViewController {
private lazy var redBox = NSView(frame: NSRect(x: 0, y: 0, width: 100, height: 100))
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(redBox)
redBox.wantsLayer = true
redBox.layer?.backgroundColor = NSColor.red.cgColor
//button.init("Test12",self,Selector(printSomething())
let button = buttontest()
self.view.addSubview(button.buttoninit())
//self.view.addSubview(buttontest().buttoninit())
// Do any additional setup after loading the view.
}
override func loadView() {
self.view = NSView(frame: NSRect(x: 0, y: 0, width: NSScreen.main?.frame.width ?? 100, height: NSScreen.main?.frame.height ?? 100))
}
override var representedObject: Any? {
didSet {
// Update the view, if already loaded.
}
}
}

Answer 1

The OK version:
#objc class buttontest : NSObject{
let button = NSButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
#objc func printSomething() {
print("Hello")
self.button.title="TEST13"
}
func buttoninit() -> NSButton{
self.button.title="Test"
self.button.bezelStyle=NSButton.BezelStyle.rounded
self.button.target=buttonX
self.button.action = #selector(buttontest.printSomething)
return self.button
}
}
let buttonX = buttontest()
class ViewController: NSViewController {
private lazy var redBox = NSView(frame: NSRect(x: 0, y: 0, width: 100, height: 100))
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(redBox)
redBox.wantsLayer = true
redBox.layer?.backgroundColor = NSColor.red.cgColor
self.view.addSubview(buttonX.buttoninit())
}
}