I am attempting to set up deep linking into my app, but I can't figure out how Apple wants us to do this. I have 3 views. FirstView(), SecondView(), and ThirdView(). FirstView has a button on it. When the user taps on that button, I want the app to "deep link" to the ThirdView and then when the user taps on "back" on the ThirdView, I want the app to go to SecondView(). I also want to control this using an EnvironmentObject so I can start this navigation from an arbitrary place. i.e. a push notification or from a web link. Here is my code.
import SwiftUI
@main
struct DeepLinkAppApp: App {
@StateObject var navigationState = NavigationState()
var body: some Scene {
WindowGroup {
FirstView().environmentObject(navigationState)
}
}
}
class NavigationState: NSObject, ObservableObject {
@Published var isOnSecondScreen = false
@Published var isOnThirdScreen = false
}
struct FirstView: View {
@EnvironmentObject var navigationState: NavigationState
var body: some View {
NavigationView {
VStack {
Text("First View")
Button(action: {
self.navigationState.isOnSecondScreen = true
self.navigationState.isOnThirdScreen = true
}) {
Text("Go to second")
}
NavigationLink(destination: SecondView(), isActive: $navigationState.isOnSecondScreen) { EmptyView() }
}
}.navigationViewStyle(StackNavigationViewStyle())
}
}
struct SecondView: View {
@EnvironmentObject var navigationState: NavigationState
var body: some View {
VStack {
Text("Second View")
Button(action: {
self.navigationState.isOnThirdScreen = true
print("LHere")
}) {
Text("Go to third")
}
NavigationLink(destination: ThirdView(), isActive: $navigationState.isOnThirdScreen) { }
}
}
}
struct ThirdView: View {
var body: some View {
VStack {
Text("Third View")
}
}
}
struct FirstView_Previews: PreviewProvider {
static var previews: some View {
FirstView()
}
}
