Add flutter_local_notifications module, NotiManager

lib/base/noti_manager.dart

@@ -0,0 +1,41 @@
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+
+class NotiManager {
+  FlutterLocalNotificationsPlugin _flutterLocalNotificationsPlugin;
+
+  NotiManager._privateConstructor() {
+    init();
+  }
+
+  void init() {
+    // initialise the plugin. app_icon needs to be a added as a drawable resource to the Android head project
+    // If you have skipped STEP 3 then change app_icon to @mipmap/ic_launcher
+    var initializationSettingsAndroid =
+        new AndroidInitializationSettings('app_icon');
+    var initializationSettingsIOS = new IOSInitializationSettings();
+    var initializationSettings = new InitializationSettings(
+        initializationSettingsAndroid, initializationSettingsIOS);
+    _flutterLocalNotificationsPlugin = new FlutterLocalNotificationsPlugin();
+    _flutterLocalNotificationsPlugin.initialize(initializationSettings,
+        onSelectNotification: null);
+  }
+
+  static final NotiManager instance = NotiManager._privateConstructor();
+
+  void showAlert(String message) async {
+    var androidPlatformChannelSpecifics = new AndroidNotificationDetails(
+        'CHANNEL_FOR_DEBUG', 'Debug', 'Notification for debug',
+        playSound: false, importance: Importance.Max, priority: Priority.High);
+    var iOSPlatformChannelSpecifics =
+        new IOSNotificationDetails(presentSound: false);
+    var platformChannelSpecifics = new NotificationDetails(
+        androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);
+    await _flutterLocalNotificationsPlugin.show(
+      message.hashCode,
+      'Debug!!',
+      message,
+      platformChannelSpecifics,
+      payload: message,
+    );
+  }
+}

lib/main.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 
 import 'base/debug_utils.dart';
+import 'base/noti_manager.dart';
 import 'generated/i18n.dart';
 import 'settings.dart';
 
@@ -40,6 +41,9 @@ class _MyHomePageState extends State<MyHomePage> {
 
     Log.d("main", "floating button pressed: counter = $_counter");
 
+    NotiManager.instance
+        .showAlert("floating button pressed: counter = $_counter");
+
     setState(() {
       // This call to setState tells the Flutter framework that something has
       // changed in this State, which causes it to rerun the build method below

pubspec.yaml

@@ -36,6 +36,9 @@ dependencies:
   # logging
   fimber:
 
+  # notification
+  flutter_local_notifications:
+
 dev_dependencies:
   flutter_test:
     sdk: flutter