feat:更新消息通知功能

lib/pages/home_page.dart

@@ -1,12 +1,17 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 import 'package:liquid_glass_widgets/widgets/shared/glass_page.dart';
 import 'package:liquid_glass_widgets/widgets/surfaces/glass_bottom_bar.dart';
 import 'package:liquid_glass_widgets/widgets/surfaces/glass_scaffold.dart';
+import 'package:provider/provider.dart';
 import 'package:sweet_chat_app/config/AppConfig.dart';
 import 'package:sweet_chat_app/models/im_message.dart';
 import 'package:sweet_chat_app/pages/contact_page.dart';
 import 'package:sweet_chat_app/pages/explore_page.dart';
 import 'package:sweet_chat_app/pages/message_page.dart';
+import 'package:sweet_chat_app/providers/app_provider.dart';
+import 'package:sweet_chat_app/services/notify_service.dart';
 import 'package:sweet_chat_app/services/webSocket_service.dart';
 import 'package:sweet_chat_app/utils/sp_utils.dart';
 
@@ -19,8 +24,11 @@ class HomePage extends StatefulWidget {
 }
 
 class _HomePageState extends State<HomePage> {
+  late StreamSubscription<String> _msgSub;
+  final NotifyService notifyService = NotifyService();
   int _index = 0;
-
+  late int userId;
+  
   final _pages = [
     const MessagePage(),
     const ContactsPage(),
@@ -36,13 +44,35 @@ class _HomePageState extends State<HomePage> {
   
   @override
   void dispose() {
+    _msgSub.cancel();
     super.dispose();
   }
 
   void initWebsocket() {
-    final userId = SpUtil.getInt('userId') ?? 0;
+    userId = SpUtil.getInt('userId') ?? 0;
     WebSocketService().connect('${AppConfig.wsUrl}?userId=$userId');
     WebSocketService().send(ImMessage.online(userId).toJsonString());
+
+    _msgSub = WebSocketService().messages.listen((websocketMessage) {
+      _handleMessage(websocketMessage);
+    });
+  }
+
+  void _handleMessage(String wsMsg) {
+    if (!mounted) return;
+
+    final ImMessage imMsg = ImMessage.fromJsonString(wsMsg);
+
+    // 非自己的消息
+    if (imMsg.from != userId.toString()) {
+      final appProvider = Provider.of<AppProvider>(context, listen: false);
+      // 如果已经在聊天中 则不用提醒
+      if (appProvider.routerName == 'chat') {
+        return;
+      }
+
+      notifyService.showInstantNotification(title: imMsg.title, body: imMsg.content);
+    }
   }
   
   @override