SwiftUI: How to implement Edit menu in macOS app

Question

I am building a macOS-app using SwiftUI and the new App lifecycle.

All the default macOS menu items (like cut, copy, paste) are already there after starting a new project but they’re greyed out. How can I implement methods for these default menu items?

Edit: I am currently using Xcode 12.2 beta 3 (12B5035g) on macOS Big Sur 11.0.1 Beta (20B5012d). I don’t want to solve this with Storyboards or within AppDelegate but instead with SwiftUI and the new App lifecycle.

Clywd

Did you try to select some text and then select Copy? For me they work out-of-the-box so to say without any extra code. Or do you need copy some custom types? – Supermundane

You’re right, it works out of the box if I select the contents of a TextField for example. However I want to be able to run a custom copy function if no specific input field is focused. – Clywd

You might want to clarify what version of macOS and Xcode you are using. – Supermundane

I just have clarified my original question. – Clywd

Answer 1

Have a look at the commands modifier, the CommandGroup and CommandMenu.

@main
struct MyApp: App {

var body: some Scene {
    WindowGroup {
        ContentView()
    }.commands {
        // for example
        CommandGroup(replacing: .help) {
            Button(action: {someActionHere()}) {
                Text("MyApp Help")
            }
        }
        CommandMenu("Edit") {
            // ...
        }
    }
}
}

Uranyl

I like this article. It explains a bit more. swiftwithmajid.com/2020/11/24/commands-in-swiftui – Avowed

This will create a new menu called Edit, not allow implementing functionality for the existing Edit menu. – Banquette