I want my app in SwiftUI for macOS get shown or available to user with some sec delay like 5 sec delay, how can I do this? Just given more info, I want nothing shown to user in 5 sec, and after that ContentView get available to user. Also I know the use case of timer or DispatchQueue, but I have no idea how can I use them for making this delay.
@main
struct test58App: App {
var body: some Scene {
WindowGroup {
// Here, I want ContentView get showen to user with some delay like 5 sec delay!
ContentView()
}
}
}
CodePudding user response:
This would be a possible approach:
@main
struct test2App: App {
@State private var visible: Bool = false
var body: some Scene {
WindowGroup {
Group {
if visible {
ContentView()
}
}
.onAppear(perform: {
DispatchQueue.main.asyncAfter(deadline: .now() 5) {
visible = true
}
})
}
}
}
CodePudding user response:
Approach
- The root view (
ContentView
) needs to be shown, the app can't be without the root view - Keep the ContentView empty till 5 seconds, then show what ever you want to show
My opinion
- It is not a good idea to keep the root view totally empty, at least show a spinner or some text otherwise user might think the app is not responding / too slow and kill the app
Code
struct ContentView: View {
@State private var isReady = false
var body: some View {
Group {
if isReady {
Text("Ready")
} else {
// Text("Not Ready")
EmptyView()
}
}
.task {
try? await Task.sleep(nanoseconds: 5_000_000_000)
isReady = true
}
}
}
CodePudding user response:
If you want to hide the whole window, this would work. But it can be, that the window is visible very shortly...
@main
struct test2App: App {
init() {
NSApplication.shared.hide(nil)
DispatchQueue.main.asyncAfter(deadline: .now() 5) {
NSApplication.shared.unhide(nil)
NSApplication.shared.activate(ignoringOtherApps: true)
}
}
var body: some Scene {
WindowGroup {
ContentView()
}
}
}