main.dart

import 'package:flutter/material.dart';
import 'package:map_launcher/map_launcher.dart';
import 'package:overlay_support/overlay_support.dart';

class HomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
      color: Colors.white,
      child: Center(
        child: RaisedButton(
          child: Text('Show notification'),
          onPressed: () async {
            //show a notification at top of screen
            showOverlayNotification((context) {
              return SafeArea(
                child: Card(
                  color: Colors.grey.shade900,
                  child: Column(
                    children: <Widget>[
                      Container(
                        padding: EdgeInsets.all(6),
                        color: Colors.black,
                        child: Row(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: <Widget>[
                            CircleAvatar(
                              backgroundImage: NetworkImage(
                                  'https://instagram.fluh1-1.fna.fbcdn.net/v/t51.2885-19/s150x150/82012511_2302706006694584_5094878914493284352_n.jpg?_nc_ht=instagram.fluh1-1.fna.fbcdn.net&_nc_ohc=PEk_epYGkX4AX__RxEA&oh=80d85bb92149be7ce229e77f85d6d467&oe=5F104153'),
                              radius: 10,
                            ),
                            Text(' theboringdeveloper', style: TextStyle(fontWeight: FontWeight.w500, color: Colors.white, fontSize: 15))
                          ],
                        ),
                      ),
                      ListTile(
                        leading: CircleAvatar(
                          backgroundImage: NetworkImage(
                              'https://instagram.fluh1-1.fna.fbcdn.net/v/t51.2885-19/s150x150/68911757_897393633967586_8049386857282142208_n.jpg?_nc_ht=instagram.fluh1-1.fna.fbcdn.net&_nc_ohc=CvnVIGcPzdIAX9KNzhD&oh=85f15238cb13e62da263e7425b9f03f4&oe=5F111342'),
                        ),
                        title: Text(
                          'igursheesh liked your post.',
                          style: TextStyle(color: Colors.white),
                        ),
                      ),
                    ],
                  ),
                ),
              );
            });
          },
        ),
      ),
    );
  }
}