Open flutter dialog after navigation

Question

I call Navigator pushReplacement to show a new view within my flutter app and want to immediately pop up a simple dialog to introduce the page to the user. (I want the user

Answer 1

If anyone after a solution to display dialog based on the widget value update.

For example, let users know the screen they are trying to view, has been deleted.

if (xxx.timestamps.deleted == null) {
  return DetailView(xxx: xxx);
} else {
  return FutureBuilder(
    future: Future.delayed(
      Duration.zero,
      () => showDialog(
          context: context,
          builder: (_) => ActionDialog(
              title: Text('xxx Deleted'),
              content: Text('xxx deleted'),
              confirmActions: [DialogConfirm.Ok])).then(
        (value) => Navigator.pop(context),
      ),
    ),
    builder: (context, _) => DetailView(xxx: xxx),
  );
}

kudos to https://stackoverflow.com/a/64017240/2641128