Add subLocale to easy_localization

.vscode/launch.json

@@ -0,0 +1,65 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "easy_localization",
+            "request": "launch",
+            "type": "dart"
+        },
+        {
+            "name": "easy_localization (profile mode)",
+            "request": "launch",
+            "type": "dart",
+            "flutterMode": "profile"
+        },
+        {
+            "name": "easy_localization (release mode)",
+            "request": "launch",
+            "type": "dart",
+            "flutterMode": "release"
+        },
+        {
+            "name": "example",
+            "cwd": "example",
+            "request": "launch",
+            "type": "dart"
+        },
+        {
+            "name": "example (profile mode)",
+            "cwd": "example",
+            "request": "launch",
+            "type": "dart",
+            "flutterMode": "profile"
+        },
+        {
+            "name": "example (release mode)",
+            "cwd": "example",
+            "request": "launch",
+            "type": "dart",
+            "flutterMode": "release"
+        },
+        {
+            "name": "easy_logger",
+            "cwd": "packages/easy_logger",
+            "request": "launch",
+            "type": "dart"
+        },
+        {
+            "name": "easy_logger (profile mode)",
+            "cwd": "packages/easy_logger",
+            "request": "launch",
+            "type": "dart",
+            "flutterMode": "profile"
+        },
+        {
+            "name": "easy_logger (release mode)",
+            "cwd": "packages/easy_logger",
+            "request": "launch",
+            "type": "dart",
+            "flutterMode": "release"
+        }
+    ]
+}

example/lib/lang_view.dart

@@ -36,27 +36,41 @@ class LanguageView extends StatelessWidget {
                 ),
               ),
             ),
-            _SwitchListTileMenuItem(
-                title: 'عربي',
-                subtitle: 'عربي',
-                locale:
-                    context.supportedLocales[1] //BuildContext extension method
+            _SwitchListTileMenuItem(title: 'عربي', subtitle: 'عربي', locale: context.supportedLocales[1] //BuildContext extension method
                 ),
             _Divider(),
-            _SwitchListTileMenuItem(
-                title: 'English',
-                subtitle: 'English',
-                locale: context.supportedLocales[0]),
+            _SwitchListTileMenuItem(title: 'English', subtitle: 'English', locale: context.supportedLocales[0]),
             _Divider(),
-            _SwitchListTileMenuItem(
-                title: 'German',
-                subtitle: 'German',
-                locale: context.supportedLocales[2]),
+            _SwitchListTileMenuItem(title: 'German', subtitle: 'German', locale: context.supportedLocales[2]),
             _Divider(),
-            _SwitchListTileMenuItem(
-                title: 'Русский',
-                subtitle: 'Русский',
-                locale: context.supportedLocales[3]),
+            _SwitchListTileMenuItem(title: 'Русский', subtitle: 'Русский', locale: context.supportedLocales[3]),
+            _Divider(),
+            SizedBox(
+              height: 250,
+            ),
+            Container(
+              padding: EdgeInsets.only(top: 26),
+              margin: EdgeInsets.symmetric(
+                horizontal: 24,
+              ),
+              child: Text(
+                'Choose sub language',
+                style: TextStyle(
+                  color: Colors.blue,
+                  fontFamily: 'Montserrat',
+                  fontWeight: FontWeight.w700,
+                  fontSize: 18,
+                ),
+              ),
+            ),
+            _SwitchSubListTileMenuItem(title: 'عربي', subtitle: 'عربي', subLocale: context.supportedLocales[1] //BuildContext extension method
+                ),
+            _Divider(),
+            _SwitchSubListTileMenuItem(title: 'English', subtitle: 'English', subLocale: context.supportedLocales[0]),
+            _Divider(),
+            _SwitchSubListTileMenuItem(title: 'German', subtitle: 'German', subLocale: context.supportedLocales[2]),
+            _Divider(),
+            _SwitchSubListTileMenuItem(title: 'Русский', subtitle: 'Русский', subLocale: context.supportedLocales[3]),
             _Divider(),
           ],
         ),
@@ -100,8 +114,7 @@ class _SwitchListTileMenuItem extends StatelessWidget {
     return Container(
       margin: EdgeInsets.only(left: 10, right: 10, top: 5),
       decoration: BoxDecoration(
-        border:
-            isSelected(context) ? Border.all(color: Colors.blueAccent) : null,
+        border: isSelected(context) ? Border.all(color: Colors.blueAccent) : null,
       ),
       child: ListTile(
           dense: true,
@@ -120,3 +133,42 @@ class _SwitchListTileMenuItem extends StatelessWidget {
     );
   }
 }
+
+class _SwitchSubListTileMenuItem extends StatelessWidget {
+  const _SwitchSubListTileMenuItem({
+    Key? key,
+    required this.title,
+    required this.subtitle,
+    required this.subLocale,
+  }) : super(key: key);
+
+  final String title;
+  final String subtitle;
+  final Locale subLocale;
+
+  bool isSelected(BuildContext context) => subLocale == context.subLocale;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      margin: EdgeInsets.only(left: 10, right: 10, top: 5),
+      decoration: BoxDecoration(
+        border: isSelected(context) ? Border.all(color: Colors.blueAccent) : null,
+      ),
+      child: ListTile(
+          dense: true,
+          // isThreeLine: true,
+          title: Text(
+            title,
+          ),
+          subtitle: Text(
+            subtitle,
+          ),
+          onTap: () async {
+            log(subLocale.toString(), name: toString());
+            await context.setSubLocale(subLocale); //BuildContext extension method
+            Navigator.pop(context);
+          }),
+    );
+  }
+}

example/lib/main.dart

@@ -11,12 +11,7 @@ void main() async {
   await EasyLocalization.ensureInitialized();
 
   runApp(EasyLocalization(
-    supportedLocales: [
-      Locale('en', 'US'),
-      Locale('ar', 'DZ'),
-      Locale('de', 'DE'),
-      Locale('ru', 'RU')
-    ],
+    supportedLocales: [Locale('en', 'US'), Locale('ar', 'DZ'), Locale('de', 'DE'), Locale('ru', 'RU')],
     path: 'resources/langs',
     child: MyApp(),
     // fallbackLocale: Locale('en', 'US'),
@@ -88,13 +83,12 @@ class _MyHomePageState extends State<MyHomePage> {
             onPressed: () {
               Navigator.push(
                 context,
-                MaterialPageRoute(
-                    builder: (_) => LanguageView(), fullscreenDialog: true),
+                MaterialPageRoute(builder: (_) => LanguageView(), fullscreenDialog: true),
               );
             },
             child: Icon(
               Icons.language,
-              color: Colors.white,
+              color: Colors.black,
             ),
           ),
         ],
@@ -108,17 +102,11 @@ class _MyHomePageState extends State<MyHomePage> {
             ),
             Text(
               LocaleKeys.gender_with_arg,
-              style: TextStyle(
-                  color: Colors.grey.shade600,
-                  fontSize: 19,
-                  fontWeight: FontWeight.bold),
+              style: TextStyle(color: Colors.grey.shade600, fontSize: 19, fontWeight: FontWeight.bold),
             ).tr(args: ['aissat'], gender: _gender ? 'female' : 'male'),
             Text(
               tr(LocaleKeys.gender, gender: _gender ? 'female' : 'male'),
-              style: TextStyle(
-                  color: Colors.grey.shade600,
-                  fontSize: 15,
-                  fontWeight: FontWeight.bold),
+              style: TextStyle(color: Colors.grey.shade600, fontSize: 15, fontWeight: FontWeight.bold),
             ),
             Row(
               mainAxisAlignment: MainAxisAlignment.center,
@@ -132,8 +120,9 @@ class _MyHomePageState extends State<MyHomePage> {
               flex: 1,
             ),
             Text(LocaleKeys.msg).tr(args: ['aissat', 'Flutter']),
-            Text(LocaleKeys.msg_named)
-                .tr(namedArgs: {'lang': 'Dart'}, args: ['Easy localization']),
+            Text(LocaleKeys.msg_named).tr(namedArgs: {'lang': 'Dart'}, args: ['Easy localization']),
+            Text("Sub language:"),
+            Text(LocaleKeys.msg).trSub(args: ['aissat', 'Flutter']),
             Text(LocaleKeys.clicked).plural(counter),
             TextButton(
               onPressed: () {
@@ -144,14 +133,8 @@ class _MyHomePageState extends State<MyHomePage> {
             SizedBox(
               height: 15,
             ),
-            Text(
-                plural(LocaleKeys.amount, counter,
-                    format: NumberFormat.currency(
-                        locale: Intl.defaultLocale, symbol: '€')),
-                style: TextStyle(
-                    color: Colors.grey.shade900,
-                    fontSize: 18,
-                    fontWeight: FontWeight.bold)),
+            Text(plural(LocaleKeys.amount, counter, format: NumberFormat.currency(locale: Intl.defaultLocale, symbol: '€')),
+                style: TextStyle(color: Colors.grey.shade900, fontSize: 18, fontWeight: FontWeight.bold)),
             SizedBox(
               height: 20,
             ),