Screen Background Color With ScrollView And Navigation Bar SwiftUI

Question

Im trying to have a colored background while using a scrollview with SwiftUI but this causes the navigation title to no longer collapse. I've tried a number of ways yet this is always an issue.

struct Person : Identifiable{
    var id : Int
    var name : String
}

struct ContentView: View {
    let people = [
        Person(id: 1, name: "Ricky"),
        Person(id: 2, name: "Dani"),
        Person(id: 3, name: "Mark"),
        Person(id: 4, name: "Kailin"),
        Person(id: 5, name: "James"),
        Person(id: 5, name: "Jenna")
    ]

    var body: some View {
        NavigationView{
            ZStack{
                Color.red
                    .edgesIgnoringSafeArea(.all)
                ScrollView{
                    ForEach(people, id: \.id) { person in
                        Text(person.name)
                            .frame(width: 300, height: 400)
                            .background(Color.blue)
                            .padding()
                    }
                }.navigationBarTitle("Home")
            }
        }
    }

    //    init(){
    //        UIView.appearance().backgroundColor = .orange
    //    }
}

Answer 1

Rearrange your views like this:

var body: some View {
    NavigationView {

        ScrollView {
            ZStack {
                Color.red
                VStack {
                    ForEach(people, id: \.id) { person in
                        Text(person.name)
                            .frame(width: 300, height: 400)
                            .background(Color.blue)
                            .padding()
                    }
                }
            }
        }.navigationBarTitle("Home")
    }

NOTE THAT You can use UINavigationBar.appearance().backgroundColor = .red alongside with another UIColor like Color(UIColor.red) for the background to simulate the transparent large NavigationBar until the direct API for changing the proper colors in SwiftUI arrives.

And NOTE THAT UIColor.red is slightly different with Color.red.

Also NOTE THAT if you want to use a List instead of ScrollView, you should add .listRowInsets(EdgeInsets()) to ZStack to get rid of the extra white space.