Offline

You can do this in your Scaffold

child: ref.watch(initializerProvider).when(
   error: (error, _) => Text(error.toString()),
   loading: () => const CircularProgressIndicator(),
   data: (_) => Text('App boot is ready, replace me with main UI widget'),
  ),
),

Then define your initializer where you initialize any number of services needed to display the main widget of your UI:

final initializerProvider = FutureProvider<void>((ref) async {
  // initialize FD
  await ref.container.refresh(repositoryInitializerProvider.future);
  
  // initialize other services
  
  // retry offline events
  final _sub = ref.listen(offlineRetryProvider, (_, __) {});
  
  // close offline retry subscription
  ref.onDispose(() {
    _sub.close();
  });
});

You could also place this offline retry logic in some more specific place (for example when a user logs in, and close the sub when the user logs out).

Flutter Data

Offline