background notifications

android/app/build.gradle

@@ -35,6 +35,8 @@ android {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
             signingConfig = signingConfigs.debug
+            minifyEnabled false
+            shrinkResources false
         }
     }
 }

android/app/src/main/AndroidManifest.xml

@@ -1,5 +1,4 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
-    <uses-permission android:name="android.permission.WAKE_LOCK"/>
     <application
         android:label="ToDo"
         android:name="${applicationName}"
@@ -45,4 +44,6 @@
             <data android:mimeType="text/plain"/>
         </intent>
     </queries>
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 </manifest>

lib/main.dart

@@ -1,28 +1,25 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 import 'package:todoapp/elems/filehandler.dart';
 import 'package:todoapp/pages/Home.dart';
 import 'package:provider/provider.dart';
 import 'package:todoapp/providers/todoprovider.dart';
 import 'package:awesome_notifications/awesome_notifications.dart';
-import 'package:workmanager/workmanager.dart';
 import 'package:disable_battery_optimization/disable_battery_optimization.dart';
+import 'package:flutter_background_service/flutter_background_service.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 @pragma('vm:entry-point')
-void callbackDispatcher() {
+void callbackDispatcher() async {
-  Workmanager().executeTask((task, inputData) async {
+  WidgetsFlutterBinding.ensureInitialized();
-    AwesomeNotifications().initialize(
+  SharedPreferences.getInstance();
-        null,
+  print("test1");
-        [
-          NotificationChannel(
-              channelKey: "reminder_channel",
-              channelName: "Reminders",
-              channelDescription: "Reminder for ToDo")
-        ]);
-
   Map content = await FileHandler.fileContent;
   for (String key in content.keys) {
     Map list = content[key];
     for (String title in list.keys) {
+      print("test2");
       Map current = list[title];
       DateTime dueTime = DateTime.parse(current["dueTime"]);
       bool checked = current["checked"];
@@ -36,37 +33,48 @@ void callbackDispatcher() {
                 id: 10,
                 channelKey: "reminder_channel",
                 title: "Task due!",
-                  body: "Task $title due in $timeDiff minutes!"
+                body: "Task $title due in $timeDiff minutes!"));
-              )
-          );
       }
     }
   }
-    return Future.value(true);
+}
+
+@pragma('vm:entry-point')
+void onStart(ServiceInstance service) {
+  Timer.periodic(const Duration(seconds: 10), (timer) {
+    callbackDispatcher();
   });
 }
 
+Future<void> initService() async {
+  final service = FlutterBackgroundService();
+
+  await service.configure(
+      iosConfiguration: IosConfiguration(),
+      androidConfiguration: AndroidConfiguration(
+          onStart: onStart,
+          isForegroundMode: false,
+          autoStart: true,
+          autoStartOnBoot: true
+      )
+  );
+
+  service.startService();
+}
 
 void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
 
-
+  await AwesomeNotifications().initialize(null, [
-  AwesomeNotifications().initialize(
-      null,
-      [
     NotificationChannel(
       channelKey: "reminder_channel",
       channelName: "Reminders",
-            channelDescription: "Reminder for ToDo")
+      channelDescription: "Reminder for ToDo",
+      importance: NotificationImportance.High,
+    )
   ]);
 
-  Workmanager().initialize(
+  await initService();
-      callbackDispatcher,
-      isInDebugMode: true
-  );
-
-  Workmanager().registerPeriodicTask("check_nots", "nots_check", frequency: Duration(minutes: 15));
-  // Workmanager().registerOneOffTask("test", "test1");
-
   runApp(const MyApp());
 }
 

lib/pages/Home.dart

@@ -6,7 +6,6 @@ import 'package:todoapp/modules/drawer.dart';
 import 'package:provider/provider.dart';
 import 'package:todoapp/providers/todoprovider.dart';
 import 'package:awesome_notifications/awesome_notifications.dart';
-import 'package:workmanager/workmanager.dart';
 import 'package:disable_battery_optimization/disable_battery_optimization.dart';
 
 
@@ -19,12 +18,12 @@ class Home extends StatefulWidget {
 
 class _HomeState extends State<Home> {
   void getPermissions() async {
-    await DisableBatteryOptimization.showEnableAutoStartSettings("Enable Auto Start", "Follow the steps and enable the auto start of this app");
+    await AwesomeNotifications().isNotificationAllowed().then((isAllowed) {
-    await DisableBatteryOptimization.showDisableBatteryOptimizationSettings();
-
-    AwesomeNotifications().isNotificationAllowed().then((isAllowed) {
       AwesomeNotifications().requestPermissionToSendNotifications();
     });
+
+    await DisableBatteryOptimization.showEnableAutoStartSettings("Enable Auto Start", "Follow the steps and enable the auto start of this app");
+    await DisableBatteryOptimization.showDisableBatteryOptimizationSettings();
   }
 
   @override

pubspec.lock

@@ -89,11 +89,51 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.3"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_background_service:
+    dependency: "direct dev"
+    description:
+      name: flutter_background_service
+      sha256: d32f078ec57647c9cfd6e1a8da9297f7d8f021d4dcc204a35aaad2cdbfe255f0
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.10"
+  flutter_background_service_android:
+    dependency: transitive
+    description:
+      name: flutter_background_service_android
+      sha256: "39da42dddf877beeef82bc2583130d8bedb4d0765e99ca9e7b4a32e8c6abd239"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.2.7"
+  flutter_background_service_ios:
+    dependency: transitive
+    description:
+      name: flutter_background_service_ios
+      sha256: "6037ffd45c4d019dab0975c7feb1d31012dd697e25edc05505a4a9b0c7dc9fba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.3"
+  flutter_background_service_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_background_service_platform_interface
+      sha256: ca74aa95789a8304f4d3f57f07ba404faa86bed6e415f83e8edea6ad8b904a41
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.1.2"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -264,6 +304,62 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.1.2"
+  shared_preferences:
+    dependency: "direct dev"
+    description:
+      name: shared_preferences
+      sha256: "746e5369a43170c25816cc472ee016d3a66bc13fcf430c0bc41ad7b4b2922051"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
+  shared_preferences_android:
+    dependency: transitive
+    description:
+      name: shared_preferences_android
+      sha256: "480ba4345773f56acda9abf5f50bd966f581dac5d514e5fc4a18c62976bbba7e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
+  shared_preferences_foundation:
+    dependency: transitive
+    description:
+      name: shared_preferences_foundation
+      sha256: c4b35f6cb8f63c147312c054ce7c2254c8066745125264f0c88739c417fc9d9f
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.2"
+  shared_preferences_linux:
+    dependency: transitive
+    description:
+      name: shared_preferences_linux
+      sha256: "580abfd40f415611503cae30adf626e6656dfb2f0cee8f465ece7b6defb40f2f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  shared_preferences_platform_interface:
+    dependency: transitive
+    description:
+      name: shared_preferences_platform_interface
+      sha256: "57cbf196c486bc2cf1f02b85784932c6094376284b3ad5779d1b1c6c6a816b80"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  shared_preferences_web:
+    dependency: transitive
+    description:
+      name: shared_preferences_web
+      sha256: d2ca4132d3946fec2184261726b355836a82c33d7d5b67af32692aff18a4684e
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
+  shared_preferences_windows:
+    dependency: transitive
+    description:
+      name: shared_preferences_windows
+      sha256: "94ef0f72b2d71bc3e700e025db3710911bd51a71cefb65cc609dd0d9a982e3c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -333,14 +429,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "14.2.5"
-  workmanager:
+  web:
-    dependency: "direct dev"
+    dependency: transitive
     description:
-      name: workmanager
+      name: web
-      sha256: ed13530cccd28c5c9959ad42d657cd0666274ca74c56dea0ca183ddd527d3a00
+      sha256: d43c1d6b787bf0afad444700ae7f4db8827f701bc61c255ac8d328c6f4d52062
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.2"
+    version: "1.0.0"
   xdg_directories:
     dependency: transitive
     description:

pubspec.yaml

@@ -42,9 +42,10 @@ dev_dependencies:
   provider:
   path_provider:
   awesome_notifications:
-  workmanager:
+  flutter_background_service:
   android_intent_plus:
   disable_battery_optimization:
+  shared_preferences:
 
   # The "flutter_lints" package below contains a set of recommended lints to
   # encourage good coding practices. The lint set provided by the package is