App-wide notifications demo

readme.md

App-wide notifications demo

Created with <3 with dartpad.dev.

main.dart

import 'package:flutter/material.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(
        scaffoldBackgroundColor: darkBlue,
      ),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: NotificationListener<MyNotification>(
            child: MyWidget(),
            onNotification: (notification) {
              print('Notification received: ${notification.message}');

              return true;
            },
          ),
        ),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        context.dispatchNotification(MyNotification('Merry Christmas and Happy Holidays!'));
      },
      child: Text(
        'Click me and check the console',
        style: Theme.of(context).textTheme.headline4,
      ),
    );
  }
}

class MyNotification extends Notification {
  final String message;

  MyNotification(this.message);
}