fix: react on wifi change

lib/main.dart

@@ -5,10 +5,12 @@ import 'package:localsend_app/gen/strings.g.dart';
 import 'package:localsend_app/init.dart';
 import 'package:localsend_app/pages/home_page.dart';
 import 'package:localsend_app/provider/device_info_provider.dart';
+import 'package:localsend_app/provider/network_info_provider.dart';
 import 'package:localsend_app/provider/persistence_provider.dart';
 import 'package:localsend_app/provider/settings_provider.dart';
 import 'package:localsend_app/theme.dart';
 import 'package:localsend_app/util/device_info_helper.dart';
+import 'package:localsend_app/widget/life_cycle_watcher.dart';
 import 'package:routerino/routerino.dart';
 
 Future<void> main() async {
@@ -30,17 +32,24 @@ class LocalSendApp extends ConsumerWidget {
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final themeMode = ref.watch(settingsProvider.select((settings) => settings.theme));
-    return MaterialApp(
-      title: t.appName,
-      locale: TranslationProvider.of(context).flutterLocale,
-      supportedLocales: LocaleSettings.supportedLocales,
-      localizationsDelegates: GlobalMaterialLocalizations.delegates,
-      debugShowCheckedModeBanner: false,
-      theme: getTheme(Brightness.light),
-      darkTheme: getTheme(Brightness.dark),
-      themeMode: themeMode,
-      navigatorKey: Routerino.navigatorKey,
-      home: const HomePage(),
+    return LifeCycleWatcher(
+      onChangedState: (AppLifecycleState state) {
+        if (state == AppLifecycleState.resumed) {
+          ref.read(networkInfoProvider.notifier).init();
+        }
+      },
+      child: MaterialApp(
+        title: t.appName,
+        locale: TranslationProvider.of(context).flutterLocale,
+        supportedLocales: LocaleSettings.supportedLocales,
+        localizationsDelegates: GlobalMaterialLocalizations.delegates,
+        debugShowCheckedModeBanner: false,
+        theme: getTheme(Brightness.light),
+        darkTheme: getTheme(Brightness.dark),
+        themeMode: themeMode,
+        navigatorKey: Routerino.navigatorKey,
+        home: const HomePage(),
+      ),
     );
   }
 }

lib/provider/network_info_provider.dart

@@ -1,15 +1,31 @@
+import 'dart:async';
+
+import 'package:connectivity_plus/connectivity_plus.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:localsend_app/model/network_info.dart';
 import 'package:network_info_plus/network_info_plus.dart' as plugin;
 
 final networkInfoProvider = StateNotifierProvider<NetworkInfoNotifier, NetworkInfo?>((ref) => NetworkInfoNotifier());
 
+StreamSubscription<ConnectivityResult>? _subscription;
+
 class NetworkInfoNotifier extends StateNotifier<NetworkInfo?> {
   NetworkInfoNotifier() : super(null) {
-    _init();
+    init();
   }
 
-  Future<void> _init() async {
+  Future<void> init() async {
+    if (!kIsWeb) {
+      _subscription?.cancel();
+      _subscription = Connectivity().onConnectivityChanged.listen((_) async  {
+        state = await _getInfo();
+      });
+    }
+    state = await _getInfo();
+  }
+
+  Future<NetworkInfo> _getInfo() async {
     final info = plugin.NetworkInfo();
     String? ip;
     String? mask;
@@ -19,7 +35,10 @@ class NetworkInfoNotifier extends StateNotifier<NetworkInfo?> {
     } catch (e) {
       print(e);
     }
-    state = NetworkInfo(
+
+    print('New network state: $ip ($mask)');
+
+    return NetworkInfo(
       localIp: ip,
       netMask: mask,
     );

lib/widget/life_cycle_watcher.dart

@@ -0,0 +1,35 @@
+import 'package:flutter/material.dart';
+
+class LifeCycleWatcher extends StatefulWidget {
+  final Widget child;
+  final void Function(AppLifecycleState state) onChangedState;
+
+  const LifeCycleWatcher({required this.child, required this.onChangedState, super.key});
+
+  @override
+  State<LifeCycleWatcher> createState() => _LifeCycleWatcherState();
+}
+
+class _LifeCycleWatcherState extends State<LifeCycleWatcher> with WidgetsBindingObserver  {
+  @override
+  Widget build(BuildContext context) {
+    return widget.child;
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    WidgetsBinding.instance.addObserver(this);
+  }
+
+  @override
+  void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
+    super.dispose();
+  }
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    widget.onChangedState(state);
+  }
+}

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,6 +5,7 @@
 import FlutterMacOS
 import Foundation
 
+import connectivity_plus
 import desktop_drop
 import device_info_plus
 import network_info_plus
@@ -17,6 +18,7 @@ import url_launcher_macos
 import window_manager
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  ConnectivityPlugin.register(with: registry.registrar(forPlugin: "ConnectivityPlugin"))
   DesktopDropPlugin.register(with: registry.registrar(forPlugin: "DesktopDropPlugin"))
   DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
   NetworkInfoPlusPlugin.register(with: registry.registrar(forPlugin: "NetworkInfoPlusPlugin"))

pubspec.lock

@@ -148,6 +148,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0"
+  connectivity_plus:
+    dependency: "direct main"
+    description:
+      name: connectivity_plus
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.2"
+  connectivity_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: connectivity_plus_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.3"
   console:
     dependency: transitive
     description:

pubspec.yaml

@@ -11,6 +11,7 @@ environment:
 dependencies:
   basic_utils: 5.4.2
   collection: 1.16.0
+  connectivity_plus: 3.0.2
   desktop_drop: 0.4.0
   device_info_plus: 8.0.0
   dio: 4.0.6

windows/flutter/generated_plugin_registrant.cc

@@ -6,6 +6,7 @@
 
 #include "generated_plugin_registrant.h"
 
+#include <connectivity_plus/connectivity_plus_windows_plugin.h>
 #include <desktop_drop/desktop_drop_plugin.h>
 #include <network_info_plus/network_info_plus_windows_plugin.h>
 #include <permission_handler_windows/permission_handler_windows_plugin.h>
@@ -14,6 +15,8 @@
 #include <window_manager/window_manager_plugin.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
+  ConnectivityPlusWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("ConnectivityPlusWindowsPlugin"));
   DesktopDropPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("DesktopDropPlugin"));
   NetworkInfoPlusWindowsPluginRegisterWithRegistrar(

windows/flutter/generated_plugins.cmake

@@ -3,6 +3,7 @@
 #
 
 list(APPEND FLUTTER_PLUGIN_LIST
+  connectivity_plus
   desktop_drop
   network_info_plus
   permission_handler_windows