arpitkushwaha
commented
1 year ago I am also facing the same issue as mentioned by @daviddagan. Adding to the description it happens when I set autoStart: false at configuration time. If I set autoStart: true, then it works as expected. Attaching my code below.
`import 'dart:async'; import 'dart:io'; import 'dart:ui';
import 'package:device_info_plus/device_info_plus.dart'; import 'package:flutter/material.dart'; import 'package:flutter_background_service/flutter_background_service.dart'; import 'package:flutter_background_service_android/flutter_background_service_android.dart'; import 'package:flutter_local_notifications/flutter_local_notifications.dart'; import 'package:shared_preferences/shared_preferences.dart'; import 'package:flutter_ringtone_player/flutter_ringtone_player.dart';
Future
Future
/// OPTIONAL, using custom notification channel id const AndroidNotificationChannel channel = AndroidNotificationChannel( 'my_foreground', // id 'MY FOREGROUND SERVICE', // title description: 'This channel is used for important notifications.', // description importance: Importance.low, // importance must be at low or higher level );
final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
if (Platform.isIOS) { await flutterLocalNotificationsPlugin.initialize( const InitializationSettings( // iOS: IOSInitializationSettings(), ), ); }
await flutterLocalNotificationsPlugin .resolvePlatformSpecificImplementation< AndroidFlutterLocalNotificationsPlugin>() ?.createNotificationChannel(channel);
await service.configure( androidConfiguration: AndroidConfiguration( // this will be executed when app is in foreground or background in separated isolate onStart: onStart,
// auto start service
autoStart: false,
isForegroundMode: true,
notificationChannelId: 'my_foreground',
initialNotificationTitle: 'AWESOME SERVICE',
initialNotificationContent: 'Initializing',
foregroundServiceNotificationId: 888,
),
iosConfiguration: IosConfiguration(
// auto start service
autoStart: false,
// this will be executed when app is in foreground in separated isolate
onForeground: onStart,
// you have to enable background fetch capability on xcode project
onBackground: onIosBackground,
),);
}
// to ensure this is executed // run app from xcode, then from xcode menu, select Simulate Background Fetch
@pragma('vm:entry-point')
Future
SharedPreferences preferences = await SharedPreferences.getInstance();
await preferences.reload();
final log = preferences.getStringList('log') ??
return true; }
@pragma('vm:entry-point') void onStart(ServiceInstance service) async { // Only available for flutter 3.0.0 and later DartPluginRegistrant.ensureInitialized();
// For flutter prior to version 3.0.0 // We have to register the plugin manually
SharedPreferences preferences = await SharedPreferences.getInstance();
var droppingTime = DateTime(DateTime.now().year, DateTime.now().month, DateTime.now().day, DateTime.now().hour, DateTime.now().minute, 50, 0, 0);
/// OPTIONAL when use custom notification final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
if (service is AndroidServiceInstance) { service.on('setAsForeground').listen((event) { service.setAsForegroundService(); });
service.on('setAsBackground').listen((event) {
service.setAsBackgroundService();
});}
service.on('stopService').listen((event) { FlutterRingtonePlayer.stop(); service.stopSelf(); });
// bring to foreground Timer.periodic(const Duration(seconds: 1), (timer) async { if (service is AndroidServiceInstance) { if (await service.isForegroundService()) { /// OPTIONAL for use custom notification /// the notification id must be equals with AndroidConfiguration when you call configure() method. flutterLocalNotificationsPlugin.show( 888, 'Alarm set for chosen dropping point', droppingTime.difference(DateTime.now()).isNegative ? "Wake up, dropping point reached" : 'Reaching dropping point in : ${droppingTime.difference(DateTime.now())}', const NotificationDetails( android: AndroidNotificationDetails( 'my_foreground', 'MY FOREGROUND SERVICE', icon: 'ic_bg_service_small', ongoing: true, ), ), );
if(droppingTime.difference(DateTime.now()).isNegative && preferences.getString("hello")=="0") {
FlutterRingtonePlayer.play(
fromAsset: "assets/alarm.mp3",
ios: IosSounds.glass,
looping: true, // Android only - API >= 28
asAlarm: true, // Android only - all APIs
);
preferences.setString("hello", "1");
}
// if you don't using custom notification, uncomment this
// service.setForegroundNotificationInfo(
// title: "My App Service",
// content: "Updated at ${DateTime.now()}",
// );
}
}
/// you can see this log in logcat
print('FLUTTER BACKGROUND SERVICE: ${DateTime.now()}');
// test using external plugin
final deviceInfo = DeviceInfoPlugin();
String? device;
if (Platform.isAndroid) {
final androidInfo = await deviceInfo.androidInfo;
device = androidInfo.model;
}
if (Platform.isIOS) {
final iosInfo = await deviceInfo.iosInfo;
device = iosInfo.model;
}
service.invoke(
'update',
{
"current_date": droppingTime.difference(DateTime.now()).toString(),
"device": device,
},
);}); }
class MyApp extends StatefulWidget { const MyApp({Key? key}) : super(key: key);
@override
State
class _MyAppState extends State
ElevatedButton(
child: Text("Stop Service"),
onPressed: () async {
final service = FlutterBackgroundService();
var isRunning = await service.isRunning();
if (isRunning) {
service.invoke("stopService");
}
setState(() {});
},
),
],
),
floatingActionButton: FloatingActionButton(
onPressed: () {},
child: const Icon(Icons.play_arrow),
),
),
);} }`
daviddagan
I'm using latest version - 2.4.6 with flutter 3.3.10 only in android It happens in all the stages debug-release
when opening the app for the first time configuration and starting the service - the invoke / on service work just fine but after exit the app for and reopening I cant reach the service.on(). feels like i loose the service instance