child state become nil after navigate to newView

[saroar]

I am using his NavigationExtension @darrarski
https://github.com/darrarski/darrarski/tree/main/2021/04/Thoughts-on-SwiftUI-navigation
here is my app test https://github.com/AddaMeSPB/AddaMeIOS/blob/feature/git_workflow/AddameSPM/Tests/EventViewTests/EventsViewTests.swift
my child state is become nil imminently

RPReplay_Final1631604246.MP4

thanks advance for help

[darrarski]

Did you try to debug your reducer so you'll know what actions are sent to the store, and how the state is mutated? This may help finding the issue.

When it comes to my "Thought on SwiftUI navigation" article, I've made a Swift Package you can use in your app: https://github.com/darrarski/swift-composable-presentation.

[darrarski]

Could you add .debug() to your reducer and attach the console log that shows what's going on when you navigate?

[saroar]

https://gist.github.com/saroar/594f731fe89c8a3a22b439c74be9dcef#file-eventreducer-swift-L135

.navigate(
      using: store.scope(
        state: \.eventFormState,
        action: EventsAction.eventForm
      ),
      destination: EventFormView.init(store:),
      onDismiss: {
        ViewStore(store.stateless).send(.eventFormView(isNavigate: false)) -> from EventView when I commend this line 
      }
    )

still back to root view and logs nothing especial

[saroar]

@darrarski awesome package like it:) I already it in my app
now after debug lots I found call any action child view my child view back to root view :( very strange behave

[saroar]

Simulator.Screen.Recording.-.iPhone.12.Pro.-.2021-09-14.at.19.03.06.mp4

I am trying more debug rit now

[saroar]

before move to my EventView my eventState become nil its very strange

[mbrandonw]

Have you tried applying StackNavigationViewStyle to your base navigation view? This is what we do in isowords:

https://github.com/pointfreeco/isowords/blob/dfaf3d3d36cce1b47eb032d4f13e4d737c185c81/Sources/AppFeature/AppView.swift#L443-L446

This can fix a variety of weird navigation issues.

[saroar]

from morning I am trying to figure out problem found some problem but don't know reason
thanks for reply @mbrandonw yes I follow isowords code some times
I already have it here is it please take look if u found something wrong

https://github.com/AddaMeSPB/AddaMeIOS/blob/feature/git_workflow/AddameSPM/Sources/TabsView/TabsView.swift#L96

[saroar]

extension EventsAction {
  static func view(_ localAction: EventView.ViewAction) -> Self {
    switch localAction {
    case .alertDismissed:
      return .alertDismissed
    case .dismissEventDetails:
      return .dismissEventDetails
    ..................
    }
}
``` is it normal ? 

[saroar]

here is what happing when I click any action on my child view
https://gist.github.com/saroar/8bebb7363a56c15ff6e172a44d773b8f

[saroar]

then main reason this bug is called child view any action call parent view onDismiss action which is call

onDismiss: {
        ViewStore(store.stateless).send(.eventFormView(isNavigate: false)) -> from EventView when I commend this line 
      }