scaffold_messenger_proxy 0.0.3

inject a widget into the widget tree that listens to a stream with a config and maps it to a SnackBar that is displayed - which enables to control the displaying of Snackbars from outside the widget tree

example/main.dart

import 'dart:async';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:scaffold_messenger_proxy/scaffold_messenger_proxy.dart';

void main() {
  runApp(App());
}

class App extends StatelessWidget {
  // ignore: close_sinks
  final _streamController = StreamController<String>();

  @override
  Widget build(BuildContext context) {
    return ScaffoldMessengerProxy<String>(
      stream: _streamController.stream,
      snackBarBuilder: (context, _) {
        return SynchronousFuture(
          SnackBar(
            content: Text("I am from a stream"),
          ),
        );
      },
      child: Scaffold(
        body: Center(
          child: Text("EXAMPLE"),
        ),
      ),
    );
  }
}