Unwanted SplitView on modal view displayed on iPad - ios

Question

Testing my first SwiftUI app on iPad, I discovered that the modal views I display from my ContentView are displayed as Split views on the iPad, with the UI being truncated on the master side and the detail side is empty.
I did check both posts here :
Unwanted SplitView and,
What's the equality of the UISplitView controller
But their solution of applying the .navigationViewStyle(StackNavigationViewStyle) to the NavigationView does not work for me :
I display my modals through user input (tap of a button) using the following method :
When a button is pressed, an Int value is passed to a local var (modalViewCaller) and then to the sheetContent() function.
Here is the end of my var body: some View and the following sheetContent func :
} // END of main VStack
.sheet(isPresented: $isModalPresented, content: sheetContent)
} // END of body
// modalViewCaller is the Int var I set upon button tap
#ViewBuilder func sheetContent() -> some View {
if modalViewCaller == 1 {
firstModalView()
} else if modalViewCaller == 2 {
secondModalView()
} else if modalViewCaller == 3 {
thirdModalView()
}
} // END of func sheetContent
Then in each of these modalViews, I apply the .navigationViewStyle(StackNavigationViewStyle) modifier to the NavigationView that encapsulate my entire view in var body: some View, but I get the following error :
"Type 'StackNavigationViewStyle.Type' cannot conform to 'NavigationViewStyle'; only struct/enum/class types can conform to protocols"
Here is the end of my NavigationView in the modals :
} // End of VStack
.navigationBarItems(
leading:
Button("Done") {
self.saveEdits()
self.presentationMode.wrappedValue.dismiss() // This dismisses the view
} // END of Button "Done"
)
.navigationBarTitle("Takeoff edition")
} // END of Navigation View
.navigationViewStyle(StackNavigationViewStyle)
.onAppear { // assigned fetched event date, here it is available (was not in init())
self.selectedDate = self.fetchedEvent.first?.eventDate ?? Date()
}
} // END of some View
I guess the solution posted was to apply that modifier from the ContentView NavigationView, but I don't have one (and don't want one because of all the screen real estate lost on top of my UI)

Answer 1

Here is fix (it has to be constructed, ie. StackNavigationViewStyle()):
} // END of Navigation View
.navigationViewStyle(StackNavigationViewStyle()) // << here !!