NavigationView creates too much of space at the top

Hello! I am trying to make a simple app. The page I am currently working on has a few shapes in an HStack and VStack. I've used ZStack to wrap the entire code to have a different background. When I go to the AppName.swift and place the ContentView() in NavigationView{}, the outcome has too much space on the top, shifted maybe a couple of lines. In the preview, the outcome looks perfectly fine. I really do not want that much space and I do not understand why that is happening. Is there anyway I can adjust the size?

Code Block import SwiftUI
//main page of the UI
struct ContentView: View {
    var body: some View {
        
            NavigationView{
                ZStack{
                GeometryReader{ geometry in
                VStack{
                    Spacer()
                    ZStack{
                        RoundedRectangle(cornerRadius: 10, style: .continuous)
                            .fill(Color.init(red: 0.93, green: 1.0, blue: 0.953))
                            .frame(width: 350, height: 50)
                    }
                    
                    Spacer()
                    
                    //
                    HStack(spacing:50){
                        RoundedRectangle(cornerRadius: 25, style: .continuous)
                            .fill(Color.init(red: 0.93, green: 1.0, blue: 0.953))
                            .frame(width: 150, height: 200)
                        
                        
                        RoundedRectangle(cornerRadius: 25, style: .continuous)
                            .fill(Color.init(red: 0.93, green: 1.0, blue: 0.953))
                            .frame(width: 150, height: 200)
                    }
                    
                    Spacer()
                    HStack(spacing:50){
                        RoundedRectangle(cornerRadius: 25, style: .continuous)
                            .fill(Color.init(red: 0.93, green: 1.0, blue: 0.953))
                            .frame(width: 150, height: 200)
                        
                        
                        RoundedRectangle(cornerRadius: 25, style: .continuous)
                            .fill(Color.init(red: 0.93, green: 1.0, blue: 0.953))
                            .frame(width: 150, height: 200)
                    }
                    
                    Spacer()
                    
                    HStack{
                        TabBarIcon(width: geometry.size.width/5, height: geometry.size.height/28, systemIconName: "cart", tabName: "List")
                        
                        TabBarIcon(width: geometry.size.width/5, height: geometry.size.height/28, systemIconName: "ticket", tabName: "Rewards")
                        
                        ZStack{
                            Circle()
                                .fill(Color.init(red: 0.93, green: 1.0, blue: 0.953))
                                .foregroundColor(.white)
                                .frame(width: geometry.size.width/7, height: geometry.size.width/7)
                                .shadow(radius: 4)
                            Image(systemName: "plus.circle.fill")
                                .resizable()
                                .aspectRatio(contentMode: /*@START_MENU_TOKEN@*/.fill/*@END_MENU_TOKEN@*/)
                            .frame(width: geometry.size.width/8, height: geometry.size.width/8)
                                .foregroundColor(Color("TabBarBackground"))
                            
                        }
                        .offset(y: -geometry.size.height/8/2)
                        
                        
                        TabBarIcon(width: geometry.size.width/5, height: geometry.size.height/28, systemIconName: "leaf", tabName: "SmartRecipe")
                        
                        
                        TabBarIcon(width: geometry.size.width/5, height: geometry.size.height/28, systemIconName: "rectangle.3.offgrid.bubble.left", tabName: "FoodFeed")
                        
                        
                    }.frame(width: geometry.size.width, height: geometry.size.height/8).background(Color("TabBarBackground")).shadow(radius: 2 )
                }.edgesIgnoringSafeArea(.bottom).foregroundColor(.white)
                }
            }.navigationBarTitle(Text("Vitameal")).background(Image("bg"))
            }
        }
}
struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}
struct TabBarIcon: View{
    
    let width, height: CGFloat
    let systemIconName, tabName: String
    var body: some View{
        VStack{
            Image(systemName: systemIconName)
                .resizable()
                .aspectRatio(contentMode: .fit)
                .frame(width: width, height: height)
                .padding(.top, 10)
                .foregroundColor(.white)
            Text(tabName).foregroundColor(.white).font(.footnote)
            Spacer()
        }
        .padding(.horizontal, -4)
    }
}


For the AppName.swift file, this is what I tried which lead to large amount of space:

Code Block import SwiftUI
@main
struct RiyaVitaMealApp: App {
    var body: some Scene {
        WindowGroup {
            NavigationView{
            ContentView()
            }
        }
    }
}





place the ContentView() in NavigationView{},

Why are you putting NavigationView in your RiyaVitaMealApp?

You have two NavigationViews nested (one in RiyaVitaMealApp and one in ContentView), which causes two navigation bars stacked. It may look like too much space on the top.
Please try removing one of the NavigationViews.
NavigationView creates too much of space at the top
 
 
Q