How to keep newly opened macOS window in front & prevent being hidden with SwiftUI?

Question

I am using SwiftUI to create a macOS app and need to create a new window that opens with an image inside of it, which I am successfully accomplishing currently.

However, if I click back on the main app window, the newly opened window goes to the background and is hidden (normal behavior), however, I want the newly opened window to always be on top of the main app window AFTER if I click back on the main application window.

The reason is that the new window (WindowGroup) opened contains an image with the information I need to enter in the main app so if it goes behind the main app window, I can't see the image anymore.

Is there a WindowGroup modifier I can implement so that after the WindowGroup("imageView") window opens, it is always on top & how can I integrate into my existing code?

Thank you!

@main
struct customApp: App {
    @StateObject var session = SessionStore()
    
    var body: some Scene {
        WindowGroup("mainView") {
            ContentView().environmentObject(session)
        }.handlesExternalEvents(matching: ["mainView"])
        
        WindowGroup("imageView") {
            ImageView(url: SessionStore.imageUrl)
        }.handlesExternalEvents(matching: ["imageView"])
    }
}

View that opens new window

struct ImageViews: View {
    @Environment(\.openURL) var openURL
    
    var body: some View {
        HStack {
            WebImage(string: idUrl)
                .onTapGesture {
                    guard let url = URL(string: "app://imageView") else { return }
                    openURL(url)
                }
        }
    }
}

Cheolhyun · Accepted Answer · 2023-06-14 20:22:09Z

3

Set the window.level to always on top .floating. You can access it via NSApplication.shared.windows

Button("Window level") {
    for window in NSApplication.shared.windows {
        window.level = .floating
    }
}

edited Jun 14, 2023 at 20:22

Cheolhyun

1851 silver badge9 bronze badges

answered Oct 20, 2022 at 11:33

Tolga Katas

3851 silver badge6 bronze badges

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2 Comments

Jake Smith Over a year ago

Where would I put that in my existing code? It is not very clear to me.

soundflix Over a year ago

This will set ALL windows to .floating.

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