Change text based on toggle values in SwiftUI - ios

Question

I have created a View with Text, Image and Navigation Button in SwiftUI.When navigation button is pressed it will navigate to another view which contains Toggle.When I change the Toggle Value , I also want to change the Text value in the previous View.
Value is getting updated when changing the toggle but didn't reflected when accessed in previous View.
//BluetoothView.swift
struct BluetoothView: View {
#ObjectBinding var bluetooth = Settings()
var body: some View {
return NavigationButton(destination: ToggleBluetoothView()) {
HStack() {
Image("default")
.resizable()
.cornerRadius(12)
.frame(width: 25, height: 25)
.clipped()
.aspectRatio(contentMode: .fit)
Text("Bluetooth")
.color(.blue)
.font(.system(size: 18))
Text(bluetooth.isBluetoothOn ? "On" : "Off")
.color(.gray)
.font(.subheadline)
.frame(width: 50, height: 40, alignment: .trailing)
}
}
}
}
//ToggleBluetoothView.swift
struct ToggleBluetoothView: View {
#ObjectBinding var bluetooth = Settings()
var body: some View {
Form {
Section(header: Text("ENABLE TO CONNECT WITH NEARBY DEVICES")) {
Toggle(isOn: $bluetooth.isBluetoothOn) {
Text("Bluetooth")
}
}
}
}
}
//Settings.swift
class Settings: BindableObject {
var didChange = PassthroughSubject<Void, Never>()
var isBluetoothOn = false { didSet { update() } }
func update() {
didChange.send(())
}
}

Answer 1

You are instantiating Settings separately in each view. Both views need to be seeing the same Settings object:
Change the following:
NavigationButton(destination: ToggleBluetoothView(bluetooth: bluetooth)) { ... }
and remove the initial value in ToggleBluetoothView:
struct ToggleBluetoothView: View {
#ObjectBinding var bluetooth: Settings
var body: some View {
Form {
Section(header: Text("ENABLE TO CONNECT WITH NEARBY DEVICES")) {
Toggle(isOn: $bluetooth.isBluetoothOn) {
Text("Bluetooth")
}
}
}
}
}