SwiftUI: Why is my button not responding to a .keyboardShortcut modifier with KeyEquivalent?

Question

I have a button that should perform its action when the user presses the spacebar on the keyboard. Sounds simple, but the code below is not working:

struct ContentView: View {
    var body: some View {
        Button("Quick Look") {
            print("pressed")
            //quickLookURL = ...
        }
        .keyboardShortcut(KeyEquivalent.space)
    }
}

Interestingly it works if I use a KeyboardShortcut:

 .keyboardShortcut(KeyboardShortcut(" ", modifiers: []))

Why is this?

Answer 1

extension View {
    public func keyboardShortcut(_ key: KeyEquivalent, modifiers: EventModifiers = .command) -> some View
    public func keyboardShortcut(_ shortcut: KeyboardShortcut) -> some View
}

public struct KeyboardShortcut : Sendable {
    public init(_ key: KeyEquivalent, modifiers: EventModifiers = .command, localization: KeyboardShortcut.Localization)
}

modifiers of keyboardShortcut has a default value that is .command. init of KeyboardShortcut also has a default value that is .command too.

So, if you want no modifier you need to explicitly gives it an empty array, or it will take .command as default value.