First check the device ID

lib/account/account_key_value.dart

@@ -14,6 +14,11 @@ class AccountKeyValue extends HiveKeyValue {
   static const _primarySessionId = 'primarySessionId';
   static const _hasNewAlbum = 'hasNewAlbum';
   static const _keyRecentUsedEmoji = 'recentUsedEmoji';
+  static const _deviceId = 'deviceId';
+
+  String? get deviceId => box.get(_deviceId) as String?;
+
+  Future<void> setDeviceId(String value) => box.put(_deviceId, value);
 
   bool get hasSyncCircle =>
       box.get(_hasSyncCircle, defaultValue: false) as bool;

lib/app.dart

@@ -7,6 +7,7 @@ import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:provider/provider.dart';
 import 'package:tuple/tuple.dart';
 
+import 'account/account_key_value.dart';
 import 'account/account_server.dart';
 import 'account/notification_service.dart';
 import 'bloc/bloc_converter.dart';
@@ -29,6 +30,7 @@ import 'ui/landing/landing.dart';
 import 'utils/extension/extension.dart';
 import 'utils/hook.dart';
 import 'utils/logger.dart';
+import 'utils/platform.dart';
 import 'utils/system/system_fonts.dart';
 import 'utils/system/text_input.dart';
 import 'utils/system/tray.dart';
@@ -263,6 +265,34 @@ class _Home extends HookWidget {
       }
     }, [signed]);
 
+    useEffect(() {
+      Future<void> effect() async {
+        if (!signed || accountServer == null) return;
+
+        try {
+          final currentDeviceId = await getDeviceId();
+          if (currentDeviceId == 'unknown') return;
+
+          final deviceId = AccountKeyValue.instance.deviceId;
+
+          if (deviceId == null) {
+            await AccountKeyValue.instance.setDeviceId(currentDeviceId);
+            return;
+          }
+
+          if (deviceId != currentDeviceId) {
+            final multiAuthCubit = context.multiAuthCubit;
+            await accountServer.signOutAndClear();
+            multiAuthCubit.signOut();
+          }
+        } catch (e) {
+          w('checkDeviceId error: $e');
+        }
+      }
+
+      effect();
+    }, [signed]);
+
     if (signed) {
       BlocProvider.of<ConversationListBloc>(context)
         ..limit = MediaQuery.of(context).size.height ~/

lib/ui/setting/appearance_page.dart

@@ -271,7 +271,7 @@ class _ChatTextSizePreview extends HookWidget {
               const EdgeInsets.only(left: 20, right: 20, top: 10, bottom: 20),
           decoration: BoxDecoration(
             color: context.theme.chatBackground,
-            borderRadius: BorderRadius.circular(8),
+            borderRadius: const BorderRadius.all(Radius.circular(8)),
             image: DecorationImage(
               image: const ExactAssetImage(
                 Resources.assetsImagesChatBackgroundPng,

lib/utils/platform.dart

@@ -1,9 +1,9 @@
 import 'dart:convert';
 import 'dart:io';
 
-import 'package:android_id/android_id.dart';
 import 'package:device_info_plus/device_info_plus.dart';
 import 'package:flutter/foundation.dart';
+import 'package:platform_device_id/platform_device_id.dart';
 import 'package:ui_device/ui_device.dart' as ui_device;
 
 import '../crypto/uuid/uuid.dart';
@@ -45,41 +45,15 @@ Future<String> getPlatformVersion() async {
 
 Future<String> getDeviceId() async {
   try {
-    final deviceInfo = DeviceInfoPlugin();
-    if (Platform.isIOS) {
-      final iosInfo = await deviceInfo.iosInfo;
-      final id = iosInfo.identifierForVendor;
-      if (id != null) {
-        return id;
-      }
-      e('failed to get iOS device id');
-    }
-    if (Platform.isAndroid) {
-      final id = await const AndroidId().getId();
-      if (id != null) {
-        return nameUuidFromBytes(utf8.encode(id)).uuid;
-      }
-      e('failed to get Android device id');
-    }
-    if (Platform.isMacOS) {
-      final macOsInfo = await deviceInfo.macOsInfo;
-      final id = macOsInfo.systemGUID;
-      if (id != null) {
-        return nameUuidFromBytes(utf8.encode(id)).uuid;
-      }
-      e('failed to get MacOS device id');
+    final id = (await PlatformDeviceId.getDeviceId)?.trim();
+    if (id == null || id.isEmpty) {
+      throw Exception("${Platform.operatingSystem}'s device id is empty");
     }
-    if (Platform.isLinux) {
-      final linuxInfo = await deviceInfo.linuxInfo;
-      final id = linuxInfo.machineId;
-      if (id != null) {
-        return nameUuidFromBytes(utf8.encode(id)).uuid;
-      }
-      e('failed to get Linux device id');
-    }
-    if (Platform.isWindows) {
-      assert(false, 'Windows is not supported');
+    if (Platform.isAndroid || kIsWeb) {
+      return nameUuidFromBytes(utf8.encode(id)).uuid;
     }
+
+    return id;
   } catch (error, stack) {
     e('failed to get device id. $error $stack');
   }

linux/flutter/generated_plugin_registrant.cc

@@ -13,6 +13,7 @@
 #include <file_selector_linux/file_selector_plugin.h>
 #include <flutter_app_icon_badge/flutter_app_icon_badge_plugin.h>
 #include <pasteboard/pasteboard_plugin.h>
+#include <platform_device_id_linux/platform_device_id_linux_plugin.h>
 #include <screen_retriever/screen_retriever_plugin.h>
 #include <sqlite3_flutter_libs/sqlite3_flutter_libs_plugin.h>
 #include <url_launcher_linux/url_launcher_plugin.h>
@@ -41,6 +42,9 @@ void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) pasteboard_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "PasteboardPlugin");
   pasteboard_plugin_register_with_registrar(pasteboard_registrar);
+  g_autoptr(FlPluginRegistrar) platform_device_id_linux_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "PlatformDeviceIdLinuxPlugin");
+  platform_device_id_linux_plugin_register_with_registrar(platform_device_id_linux_registrar);
   g_autoptr(FlPluginRegistrar) screen_retriever_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "ScreenRetrieverPlugin");
   screen_retriever_plugin_register_with_registrar(screen_retriever_registrar);

linux/flutter/generated_plugins.cmake

@@ -10,6 +10,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
   file_selector_linux
   flutter_app_icon_badge
   pasteboard
+  platform_device_id_linux
   screen_retriever
   sqlite3_flutter_libs
   url_launcher_linux

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -16,6 +16,8 @@ import ogg_opus_player
 import package_info_plus
 import pasteboard
 import path_provider_macos
+import platform_device_id
+import platform_device_id_macos
 import protocol_handler
 import screen_retriever
 import sqlite3_flutter_libs
@@ -35,6 +37,8 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   FLTPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FLTPackageInfoPlusPlugin"))
   PasteboardPlugin.register(with: registry.registrar(forPlugin: "PasteboardPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
+  PlatformDeviceIdMacosPlugin.register(with: registry.registrar(forPlugin: "PlatformDeviceIdMacosPlugin"))
+  PlatformDeviceIdMacosPlugin.register(with: registry.registrar(forPlugin: "PlatformDeviceIdMacosPlugin"))
   ProtocolHandlerPlugin.register(with: registry.registrar(forPlugin: "ProtocolHandlerPlugin"))
   ScreenRetrieverPlugin.register(with: registry.registrar(forPlugin: "ScreenRetrieverPlugin"))
   Sqlite3FlutterLibsPlugin.register(with: registry.registrar(forPlugin: "Sqlite3FlutterLibsPlugin"))

macos/Podfile.lock

@@ -22,6 +22,10 @@ PODS:
     - FlutterMacOS
   - path_provider_macos (0.0.1):
     - FlutterMacOS
+  - platform_device_id (0.0.1):
+    - FlutterMacOS
+  - platform_device_id_macos (0.0.1):
+    - FlutterMacOS
   - protocol_handler (0.0.1):
     - FlutterMacOS
   - screen_retriever (0.0.1):
@@ -61,6 +65,8 @@ DEPENDENCIES:
   - package_info_plus (from `Flutter/ephemeral/.symlinks/plugins/package_info_plus/macos`)
   - pasteboard (from `Flutter/ephemeral/.symlinks/plugins/pasteboard/macos`)
   - path_provider_macos (from `Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos`)
+  - platform_device_id (from `Flutter/ephemeral/.symlinks/plugins/platform_device_id/macos`)
+  - platform_device_id_macos (from `Flutter/ephemeral/.symlinks/plugins/platform_device_id_macos/macos`)
   - protocol_handler (from `Flutter/ephemeral/.symlinks/plugins/protocol_handler/macos`)
   - screen_retriever (from `Flutter/ephemeral/.symlinks/plugins/screen_retriever/macos`)
   - sqlite3_flutter_libs (from `Flutter/ephemeral/.symlinks/plugins/sqlite3_flutter_libs/macos`)
@@ -97,6 +103,10 @@ EXTERNAL SOURCES:
     :path: Flutter/ephemeral/.symlinks/plugins/pasteboard/macos
   path_provider_macos:
     :path: Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos
+  platform_device_id:
+    :path: Flutter/ephemeral/.symlinks/plugins/platform_device_id/macos
+  platform_device_id_macos:
+    :path: Flutter/ephemeral/.symlinks/plugins/platform_device_id_macos/macos
   protocol_handler:
     :path: Flutter/ephemeral/.symlinks/plugins/protocol_handler/macos
   screen_retriever:
@@ -123,6 +133,8 @@ SPEC CHECKSUMS:
   package_info_plus: 02d7a575e80f194102bef286361c6c326e4c29ce
   pasteboard: 9b69dba6fedbb04866be632205d532fe2f6b1d99
   path_provider_macos: 3c0c3b4b0d4a76d2bf989a913c2de869c5641a19
+  platform_device_id: 3e414428f45df149bbbfb623e2c0ca27c545b763
+  platform_device_id_macos: f763bb55f088be804d61b96eb4710b8ab6598e94
   protocol_handler: 587e1caf6c0b92ce351ab14081968dae49cb8cc6
   screen_retriever: 59634572a57080243dd1bf715e55b6c54f241a38
   sqlite3: 88dd99ef4ac3945f5a15facdd752933c52fd93bf

macos/Runner.xcodeproj/project.pbxproj

@@ -340,6 +340,8 @@
 				"${BUILT_PRODUCTS_DIR}/package_info_plus/package_info_plus.framework",
 				"${BUILT_PRODUCTS_DIR}/pasteboard/pasteboard.framework",
 				"${BUILT_PRODUCTS_DIR}/path_provider_macos/path_provider_macos.framework",
+				"${BUILT_PRODUCTS_DIR}/platform_device_id/platform_device_id.framework",
+				"${BUILT_PRODUCTS_DIR}/platform_device_id_macos/platform_device_id_macos.framework",
 				"${BUILT_PRODUCTS_DIR}/protocol_handler/protocol_handler.framework",
 				"${BUILT_PRODUCTS_DIR}/screen_retriever/screen_retriever.framework",
 				"${BUILT_PRODUCTS_DIR}/sqlite3/sqlite3.framework",
@@ -361,6 +363,8 @@
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/package_info_plus.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/pasteboard.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/path_provider_macos.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/platform_device_id.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/platform_device_id_macos.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/protocol_handler.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/screen_retriever.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/sqlite3.framework",

pubspec.lock

@@ -339,6 +339,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.1.6"
+  device_info:
+    dependency: transitive
+    description:
+      name: device_info
+      sha256: f4a8156cb7b7480d969cb734907d18b333c8f0bc0b1ad0b342cdcecf30d62c48
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.3"
+  device_info_platform_interface:
+    dependency: transitive
+    description:
+      name: device_info_platform_interface
+      sha256: b148e0bf9640145d09a4f8dea96614076f889e7f7f8b5ecab1c7e5c2dbc73c1b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
   device_info_plus:
     dependency: "direct main"
     description:
@@ -1194,6 +1210,54 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.1.0"
+  platform_device_id:
+    dependency: "direct main"
+    description:
+      name: platform_device_id
+      sha256: "7a12ec84de4a823bb10eba2f0e1ad29e2365abba17790489a0d78029904f562e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
+  platform_device_id_linux:
+    dependency: transitive
+    description:
+      name: platform_device_id_linux
+      sha256: "994b1608593e527a629af2d5aeb241c60d308d3434bc78b0f6fcb3c1a02dff43"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  platform_device_id_macos:
+    dependency: transitive
+    description:
+      name: platform_device_id_macos
+      sha256: "968db2a504c611294b12a031b3734432d6df10553a0d3ae3b33ed21abfdbaba0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  platform_device_id_platform_interface:
+    dependency: transitive
+    description:
+      name: platform_device_id_platform_interface
+      sha256: c61607594252aaddacf3e4c4371ab08f2ef85ff427817fa6e48a169429610c46
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  platform_device_id_web:
+    dependency: transitive
+    description:
+      name: platform_device_id_web
+      sha256: "58e124594e1165db7f108395a780b1d1e1cd403021978e5228cf4289fbe736d5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  platform_device_id_windows:
+    dependency: transitive
+    description:
+      name: platform_device_id_windows
+      sha256: dbf8dcf03ad8555320ebae2403a3081b79f137f37661874e161fe2de0a84eeeb
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   plugin_platform_interface:
     dependency: transitive
     description:

pubspec.yaml

@@ -94,6 +94,7 @@ dependencies:
       url: https://github.com/fireslime/photo_view.git
       ref: 52685ab7beaf8a9107904bdb8a1590924015d016
   pin_code_fields: ^7.4.0
+  platform_device_id: ^1.0.1
   protocol_handler: ^0.1.4
   provider: ^6.0.4
   qr_flutter: ^4.0.0

windows/flutter/generated_plugin_registrant.cc

@@ -12,6 +12,7 @@
 #include <file_selector_windows/file_selector_windows.h>
 #include <flutter_app_icon_badge/flutter_app_icon_badge_plugin.h>
 #include <pasteboard/pasteboard_plugin.h>
+#include <platform_device_id_windows/platform_device_id_windows_plugin.h>
 #include <protocol_handler/protocol_handler_plugin.h>
 #include <quick_breakpad/quick_breakpad_plugin.h>
 #include <screen_retriever/screen_retriever_plugin.h>
@@ -35,6 +36,8 @@ void RegisterPlugins(flutter::PluginRegistry* registry) {
       registry->GetRegistrarForPlugin("FlutterAppIconBadgePlugin"));
   PasteboardPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("PasteboardPlugin"));
+  PlatformDeviceIdWindowsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("PlatformDeviceIdWindowsPlugin"));
   ProtocolHandlerPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("ProtocolHandlerPlugin"));
   QuickBreakpadPluginRegisterWithRegistrar(

windows/flutter/generated_plugins.cmake

@@ -9,6 +9,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
   file_selector_windows
   flutter_app_icon_badge
   pasteboard
+  platform_device_id_windows
   protocol_handler
   quick_breakpad
   screen_retriever