flutter_background_service 0.0.1+13

A flutter plugin for executing dart code continously even application closed.

example/lib/main.dart

import 'dart:async';

import 'package:audioplayer/audioplayer.dart';
import 'package:flutter/material.dart';
import 'package:flutter_background_service/flutter_background_service.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  FlutterBackgroundService.initialize(onStart);

  runApp(MyApp());
}

void onStart() {
  WidgetsFlutterBinding.ensureInitialized();
  final service = FlutterBackgroundService();
  final audioPlayer = AudioPlayer();

  String url =
      "https://www.mediacollege.com/downloads/sound-effects/nature/forest/rainforest-ambient.mp3";

  audioPlayer.onPlayerStateChanged.listen((event) {
    if (event == AudioPlayerState.COMPLETED) {
      audioPlayer.play(url);
    }
  });

  audioPlayer.play(url);

  service.onDataReceived.listen((event) {
    print(event);
  });

  Timer.periodic(Duration(seconds: 1), (timer) {
    service.setNotificationInfo(
      title: "My App Service",
      content: "Updated at ${DateTime.now()}",
    );

    service.sendData(
      {"current_date": DateTime.now().toIso8601String()},
    );
  });
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Service App'),
        ),
        body: StreamBuilder<Map<String, dynamic>>(
          stream: FlutterBackgroundService().onDataReceived,
          builder: (context, snapshot) {
            if (!snapshot.hasData) {
              return Center(
                child: CircularProgressIndicator(),
              );
            }

            final data = snapshot.data;
            DateTime date = DateTime.tryParse(data["current_date"]);
            return Text(date.toString());
          },
        ),
        floatingActionButton: FloatingActionButton(
          onPressed: () {
            FlutterBackgroundService().sendData({
              "hello": "world",
            });
          },
          child: Icon(Icons.play_arrow),
        ),
      ),
    );
  }
}