Adding gen-l10n

Author: WishyutC

.github/workflows/quality.yml

@@ -11,6 +11,10 @@ jobs:
         with:
           flutter-version: ${{ env.FLUTTER_VERSION }}
       - run: flutter pub get
+
+      - name: Generate localization files
+        run: flutter gen-l10n
+        
       - run: dart format --set-exit-if-changed .
       - run: flutter analyze
       - name: Run Dart Code Metrics

lib/design/dimensions.dart

@@ -24,7 +24,7 @@ class CustomString {
     return _localized('disconnecting');
   }
 
-  String get All_app {
+  String get allapp {
     return _localized('all_apps');
   }
 

lib/l10n/app_zh.arb

@@ -0,0 +1,26 @@
+{
+    "@@locale": "zh",
+    "app_name": "VPN客户端",
+    "apps_selection": "应用选择",
+    "search": "搜索",
+    "your_location": "你的位置",
+    "auto_select": "自动选择",
+    "kazakhstan": "哈萨克斯坦",
+    "turkey": "土耳其",
+    "poland": "波兰",
+    "fastest": "最快",
+    "selected_server": "已选择服务器",
+    "server_selection": "服务器选择",
+    "all_servers": "所有服务器",
+    "country_name": "国家名称",
+    "all_apps": "所有应用",
+    "done": "完成",
+    "cancel": "取消",
+    "recently_searched": "最近搜索",
+    "nothing_found": "未找到内容",
+    "connected": "已连接",
+    "disconnected": "已断开连接",
+    "connecting": "连接中",
+    "disconnecting": "断开中"
+  }
+  

lib/l10n/app_zh_cn.arb

@@ -0,0 +1,26 @@
+{
+    "@@locale": "zh_CN",
+    "app_name": "VPN客户端",
+    "apps_selection": "应用选择",
+    "search": "搜索",
+    "your_location": "你的位置",
+    "auto_select": "自动选择",
+    "kazakhstan": "哈萨克斯坦",
+    "turkey": "土耳其",
+    "poland": "波兰",
+    "fastest": "最快",
+    "selected_server": "已选择服务器",
+    "server_selection": "服务器选择",
+    "all_servers": "所有服务器",
+    "country_name": "国家名称",
+    "all_apps": "所有应用",
+    "done": "完成",
+    "cancel": "取消",
+    "recently_searched": "最近搜索",
+    "nothing_found": "未找到内容",
+    "connected": "已连接",
+    "disconnected": "已断开连接",
+    "connecting": "连接中",
+    "disconnecting": "断开中"
+  }
+  

lib/main.dart

@@ -24,16 +24,39 @@ class App extends StatelessWidget {
   Widget build(BuildContext context) {
     final themeProvider = Provider.of<ThemeProvider>(context);
 
-    var language = const Locale(
-      'th',
-    ); //<-- You can change language here manually
+    // If you want to override it manually, do it here (or leave as null to use system):
+    // final Locale? manualLocale = const Locale('ru'); // ← override example
+    final Locale? manualLocale = null; // ← use system by default
 
     return MaterialApp(
       debugShowCheckedModeBanner: false,
       title: 'VPN Client',
       theme: lightTheme,
       darkTheme: darkTheme,
-      locale: language,
+      locale: manualLocale,
+      localeResolutionCallback: (locale, supportedLocales) {
+        if (locale == null) return const Locale('en');
+
+        // Check for exact match
+        for (var supportedLocale in supportedLocales) {
+          if (supportedLocale.languageCode == locale.languageCode &&
+              (supportedLocale.countryCode == null ||
+                  supportedLocale.countryCode == locale.countryCode)) {
+            return supportedLocale;
+          }
+        }
+
+        // If Chinese variants are not supported, fallback to zh
+        if (locale.languageCode == 'zh') {
+          return supportedLocales.contains(const Locale('zh'))
+              ? const Locale('zh')
+              : const Locale('en');
+        }
+
+        // Fallback to 'en' if not found
+        return const Locale('en');
+      },
+
       themeMode: themeProvider.themeMode,
       home: const MainScreen(),
 
@@ -43,7 +66,12 @@ class App extends StatelessWidget {
         GlobalWidgetsLocalizations.delegate,
         GlobalCupertinoLocalizations.delegate,
       ],
-      supportedLocales: const [Locale('en'), Locale('ru'), Locale('th')],
+      supportedLocales: const [
+        Locale('en'),
+        Locale('ru'),
+        Locale('th'),
+        Locale('zh'),
+      ],
     );
   }
 }

lib/pages/apps/apps_list.dart

@@ -32,15 +32,15 @@ class AppsListState extends State<AppsList> {
     }
   }
 
-  late String Text_All_Apps;
+  late String textallapps;
   bool _initialized = false;
 
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
     if (!_initialized) {
       final statusText = CustomString(context);
-      Text_All_Apps = statusText.All_app;
+      textallapps = statusText.allapp;
       _loadApps();
       _initialized = true;
     }
@@ -68,7 +68,7 @@ class AppsListState extends State<AppsList> {
         {
           'icon': null,
           'image': null,
-          'text': Text_All_Apps,
+          'text': textallapps,
           'isSwitch': true,
           'isActive': false,
         },

lib/pages/main/main_btn.dart

@@ -1,6 +1,5 @@
 import 'dart:async';
 import 'dart:developer';
-import 'dart:developer';
 import 'package:flutter/material.dart';
 import 'package:vpn_client/design/colors.dart';
 import 'package:vpn_client/design/dimensions.dart';