How do I register UndoManager in Swift?

Question

How do I use UndoManager (previously NSUndoManager) in Swift?

Here\'s an Objective-C example I\'ve tried to replicate:

[[un         


        

Answer 1

I tried this in a Playground and it works flawlessly:

class UndoResponder: NSObject {
    @objc func myMethod() {
        print("Undone")
    }
}

var undoResponder = UndoResponder()
var undoManager = UndoManager()
undoManager.registerUndo(withTarget: undoResponder, selector: #selector(UndoResponder.myMethod), object: nil)
undoManager.undo()