macos - SwiftUI on Mac - How do I designate a button as being the primary?

Question

In AppKit I would do this by assigning its key equivalent to be ? or making its cell the window's default. However, neither of these seems possible in SwiftUI, so how do I make a button the default window button?

Answer 1

macOS 11.0 / iOS 14:

As of Xcode 12 beta, new methods are exposed on Button() allowing assignment of keyEquivalent (either by enum case or explicit key and modifiers).

Setting as default:

Button( ... )
    .keyboardShortcut(.defaultAction)

Setting as cancel:

Button( ... )
    .keyboardShortcut(.cancelAction)