refactoring

example/lib/advanced_options_page.dart

@@ -1,70 +1,9 @@
-import 'dart:io';
-
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_apns/flutter_apns.dart';
-import 'package:flutter_local_notifications/flutter_local_notifications.dart'
-    hide Message;
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 import 'main.dart';
-
-void showLocalNotification(Message message, ChannelModel channel) async {
-  FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
-      FlutterLocalNotificationsPlugin();
-  final initializationSettingsAndroid =
-      AndroidInitializationSettings('launch_background');
-  final initializationSettingsIOS = IOSInitializationSettings();
-  final initializationSettings = InitializationSettings(
-    android: initializationSettingsAndroid,
-    iOS: initializationSettingsIOS,
-  );
-  await flutterLocalNotificationsPlugin.initialize(initializationSettings);
-  await flutterLocalNotificationsPlugin.show(
-    message.id.hashCode,
-    '${message.user.name} @ ${channel.name}',
-    message.text,
-    NotificationDetails(
-      android: AndroidNotificationDetails(
-        'message channel',
-        'Message channel',
-        'Channel used for showing messages',
-        priority: Priority.high,
-        importance: Importance.high,
-      ),
-      iOS: IOSNotificationDetails(),
-    ),
-  );
-}
-
-Future backgroundHandler(Map<String, dynamic> notification) async {
-  final messageId = notification['data']['message_id'];
-
-  final notificationData =
-      await NotificationService.getAndStoreMessage(messageId);
-
-  showLocalNotification(
-    notificationData.message,
-    notificationData.channel,
-  );
-}
-
-void _initNotifications(Client client) {
-  final connector = createPushConnector();
-  connector.configure(
-    onBackgroundMessage: backgroundHandler,
-  );
-
-  connector.requestNotificationPermissions();
-  connector.token.addListener(() {
-    if (connector.token.value != null) {
-      client.addDevice(
-        connector.token.value,
-        Platform.isAndroid ? 'firebase' : 'apn',
-      );
-    }
-  });
-}
+import 'notifications_service.dart';
 
 class AdvancedOptionsPage extends StatelessWidget {
   final _formKey = GlobalKey<FormState>();
@@ -111,7 +50,7 @@ class AdvancedOptionsPage extends StatelessWidget {
                 controller: _apiKeyController,
                 validator: (value) {
                   if (value.isEmpty) {
-                    return 'Please enter the user Chat API Key';
+                    return 'Please enter the Chat API Key';
                   }
                   return null;
                 },
@@ -237,7 +176,7 @@ class AdvancedOptionsPage extends StatelessWidget {
                         );
 
                         if (!kIsWeb) {
-                          _initNotifications(client);
+                          initNotifications(client);
                         }
 
                         Navigator.pop(context);