SwiftUI - How to use onCommand with NSMenuItem on macOS

Question

I am trying to find the best solution to connect a NSMenuItem with SwiftUI onCommand on macOS.

Currently I an doing the following:

1. In AppDelegate I create

Answer 1

I've been able to get this to work by first making the view focusable:

struct TestView: View {

    let changeColor = #selector(AppDelegate.changeColor(_:))

    var body: some View {
        VStack {
            TextField("Text", text: .constant(""))
            Text("Hello World!")
        }
        .frame(maxWidth: .infinity, maxHeight: .infinity)
        .focusable() // Add this 
        .onCommand(changeColor) {
            print("Change Color Action")
        }
    }
}

then you also have to check the "Use keyboard navigation to move focus between controls" checkbox in Keyboard System Preferences