In a SwiftUI macOS application, when removing the title bar by setting window.titleVisibility
to .hidden
and window.titlebarAppearsTransparent
to true
, the title bar space is still accounted for in the window height. This results in a delta (red area) in the height of the window that cannot be ignored by usual SwiftUI view modifiers like .edgesIgnoringSafeArea(.top)
. My actual view is the blue area.
I want to have the view starting in the top safeArea and the window to be the exact size of my view. I am struggling to achieve this. I have also tried with window.styleMask.insert(.fullSizeContentView)
to no effect.
Can I get some help? 🙂
Here is my source code to reproduce this behavior:
windowApp.swift
@main
struct windowApp: App {
@NSApplicationDelegateAdaptor private var appDelegate: AppDelegate
var body: some Scene {
WindowGroup {
ContentView()
.edgesIgnoringSafeArea(.top)
.background(.red)
.border(.red)
}
}
}
class AppDelegate: NSObject, NSApplicationDelegate {
func applicationDidFinishLaunching(_ notification: Notification) {
if let window = NSApplication.shared.windows.first {
window.titleVisibility = .hidden
window.titlebarAppearsTransparent = true
window.styleMask.insert(.fullSizeContentView)
}
}
}
ContentView.swift
import SwiftUI
struct ContentView: View {
var body: some View {
VStack {
Image(systemName: "globe")
.imageScale(.large)
.foregroundStyle(.tint)
Text("Hello, world!")
}
.frame(minWidth: 400, minHeight: 200)
.background(.blue)
}
}