paulhimes

struct MainView: View {
  
    /// Controls the amount of padding above the scroll view's
    /// content.
    @State var titleBarHeight: CGFloat = 123
  
    var body: some View {
       ScrollView {
            HStack {
                Spacer()

paulhimes

struct LayoutActionModifier: ViewModifier {
  
    /// This action is run after each time the view changes.
    let action: ((GeometryProxy) -> Void)?
  
    func body(content: Content) -> some View {
        content
            .background(
                GeometryReader { proxy in
                    layoutWatcher(proxy)

paulhimes

func layoutWatcher(_ proxy: GeometryProxy) -> some View {
    /// This updates the height after each time the view 
    /// is updated.
    DispatchQueue.main.async {
        titleBarHeight = proxy.size.height
    }
    return Color.clear
        .onAppear {
           /// This updates the height when the view first
           /// appears.

paulhimes

struct MainView: View {
    
    /// Controls the amount of padding above the scroll view's
    /// content.
    @State var titleBarHeight: CGFloat = 123
    
    var body: some View {
       ScrollView {
            HStack {
                Spacer()

paulhimes

struct MainView: View {
    
    /// Controls the amount of padding above the scroll view's
    /// content.
    @State var titleBarHeight: CGFloat = 123
    
    var body: some View {
       ScrollView {
            HStack {
                Spacer()

paulhimes

struct MainView: View {
    
    /// Controls the amount of padding above the scroll view's
    /// content.
    @State var titleBarHeight: CGFloat = 123
    
    var body: some View {
       ScrollView {
            HStack {
                Spacer()

paulhimes

struct MainView: View {
    
    /// Controls the amount of padding above the scroll view's
    /// content.
    @State var titleBarHeight: CGFloat = 123
    
    var body: some View {
       ScrollView {
            HStack {
                Spacer()

paulhimes

struct MainView: View {
    
    /// Controls the amount of padding above the scroll view's
    /// content.
    @State var titleBarHeight: CGFloat = 123
    
    var body: some View {
       ScrollView {
            HStack {
                Spacer()

paulhimes

struct MainView: View {
    
    /// Controls the amount of padding above the scroll view's
    /// content.
    @State var titleBarHeight: CGFloat = 123
    
    var body: some View {
        ScrollView {
            HStack {
                Spacer()

paulhimes

struct MainView: View {
    var body: some View {
        ScrollView {
            HStack {
                Spacer()
                Text("ScrollView Content")
                    .multilineTextAlignment(.center)
                    .foregroundColor(.white)
                    .background(Color.blue.brightness(0.2))
                Spacer()