How to change #EnvironmentObject from class, and not a View - swiftui

Question

I have a TabView with two child views - PageOneView and PageTwoView. I also have an #EnvironmentObject Data initialized in SceneDelegate. I also have a nested child for each of the PageOneView and PageTwoView. For PageTwoView the nested child is also a view and inside it I can access and modify #EnvironmentObject, and all of the top level views (PageOneView and PageTwoView) reflect the change. But for PageOneView the nested child is a class, not a view, and when I try to modify it within the child of PageOneView I get an error: Thread 1: Fatal error: No ObservableObject of type Data found. A View.environmentObject(_:) for Data may be missing as an ancestor of this view. Is there a way to change #EnvironmentObject from within nested child that is not a View, but a class?
struct AppView: View {
#EnvironmentObject var data: Data
var body: some View {
TabView {
PageOneView().environmentObject(data)
.tabItem {
Text("PageOne")
}
PageTwoView().environmentObject(data)
.tabItem {
Text("PageTwo")
}
}
}
}
struct PageTwoView: View {
#EnvironmentObject var data: Data
var body: some View {
VStack {
Text("Data: \(data.Name)")
ChildView()//.environmentObject(data)
}
}
}
struct ChildView: View {
#EnvironmentObject var data: Data
var body: some View {
VStack {
Text("Data: \(data.Name)")
Button(action: {
self.updateData()
}) {
Text("Update Data")
}
}
}
func updateData()
{
self.data.Name = "Updated Name"
}
}
struct PageOneView: View {
#EnvironmentObject var data: Data
var body: some View {
VStack {
Text("Data: \(data.Name)")
Button(action: {
self.updateData()
}) {
Text("Update Data")
}
}
}
func updateData()
{
var child = Child()
child.updateData()
}
}
class Child: NSObject{
#EnvironmentObject var data: Data
func updateData()
{
data.Name = "Updated Name Again"
}
}

Answer 1

Here is corrected part (you don't need #EnvironmentObject wrapper in class, it is designed for View, your Data is a class itself, so you can pass its instance by reference to your Child)
func updateData()
{
var child = Child(data: self.data)
child.updateData()
}
}
class Child: NSObject{
let data: Data
init(data: Data) {
self.data = data
}
func updateData()
{
data.Name = "Updated Name Again"
}
}