增加多语言支持

lib/data/services/config.dart

@@ -15,7 +15,8 @@ class ConfigService extends GetxService {
 
   bool get isRelease => bool.fromEnvironment("dart.vm.product");
 
-  Locale locale = Locale("en", "US");
+  // Locale locale = Locale("en", "US");
+  Locale locale = Locale("zh", "CN");
 
   List<Locale> languages = [
     Locale('en', 'US'),

lib/main.dart

@@ -1,3 +1,4 @@
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
@@ -6,7 +7,9 @@ import 'package:news_getx/data/services/config.dart';
 import 'package:news_getx/global.dart';
 import 'package:news_getx/routes/app_pages.dart';
 import 'package:news_getx/theme/app_theme.dart';
+import 'package:news_getx/translations/app_translations.dart';
 import 'package:pull_to_refresh/pull_to_refresh.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
 
 Future<void> main() async {
   await Global.init();
@@ -24,12 +27,24 @@ class MyApp extends StatelessWidget {
       // 如果不把这歌参数设为true 那么column就不会随着软键盘而变化
       // useInheritedMediaQuery: true,
       builder: (BuildContext context, Widget? child) {
+
         var app = GetMaterialApp(
           title: 'News',
           debugShowCheckedModeBanner: false,
           theme: AppTheme.light,
-          initialRoute: AppRoutes.Initial,
+          initialRoute: AppPages.Initial,
           getPages: AppPages.pages,
+          navigatorObservers: [AppPages.observer],
+          translations: AppTranslations(),
+          // 设置本地化
+          localizationsDelegates: [
+            GlobalMaterialLocalizations.delegate,
+            GlobalWidgetsLocalizations.delegate,
+            GlobalCupertinoLocalizations.delegate,
+          ],
+          supportedLocales: ConfigService.to.languages,
+          locale: ConfigService.to.locale,
+          fallbackLocale: Locale('en', 'US'),
           builder: EasyLoading.init(),
         );
 

lib/modules/main/main_controller.dart

@@ -19,7 +19,6 @@ class MainController extends GetxController {
   /// 方法
   // 拉取数据
   asyncLoadAllData() async {
-    print('开始拉取数据');
     state.categories = await newsRepository.categories(cacheDisk: true);
     state.channels = await newsRepository.channels(cacheDisk: true);
     // 分类对应的数据（推荐、新闻）

lib/routes/app_observer.dart

@@ -0,0 +1,51 @@
+import 'package:flutter/material.dart';
+import 'package:news_getx/routes/app_pages.dart';
+
+
+/// 监听路由导航
+class AppNavigatorObserver extends NavigatorObserver {
+  @override
+  void didPush(Route route, Route? previousRoute) {
+    super.didPush(route, previousRoute);
+
+    var name = route.settings.name ?? "";
+    if (name.isNotEmpty) {
+      AppPages.history.add(name);
+    }
+  }
+
+
+  @override
+  void didPop(Route route, Route? previousRoute) {
+    super.didPop(route, previousRoute);
+
+    AppPages.history.remove(route.settings.name);
+  }
+
+
+  @override
+  void didRemove(Route route, Route? previousRoute) {
+    super.didRemove(route, previousRoute);
+    AppPages.history.remove(route.settings.name);
+  }
+
+  @override
+  void didReplace({Route? newRoute, Route? oldRoute}) {
+    super.didReplace(newRoute: newRoute, oldRoute: oldRoute);
+
+    if (newRoute != null) {
+      var index = AppPages.history.indexWhere((element) {
+        return element == oldRoute?.settings.name;
+      });
+
+      var name = newRoute.settings.name ?? '';
+      if (name.isNotEmpty) {
+        if (index > 0) {
+          AppPages.history[index] = name;
+        } else {
+          AppPages.history.add(name);
+        }
+      }
+    }
+  }
+}

lib/routes/app_pages.dart

@@ -1,3 +1,4 @@
+import 'package:flutter/cupertino.dart';
 import 'package:get/get.dart';
 import 'package:news_getx/middlewares/router_auth.dart';
 import 'package:news_getx/middlewares/router_welcome.dart';
@@ -14,10 +15,16 @@ import 'package:news_getx/modules/sign_up/sign_up_binding.dart';
 import 'package:news_getx/modules/sign_up/sign_up_page.dart';
 import 'package:news_getx/modules/welcome/welcome_binding.dart';
 import 'package:news_getx/modules/welcome/welcome_page.dart';
+import 'package:news_getx/routes/app_observer.dart';
 
 part './app_routes.dart';
 
 abstract class AppPages {
+  static const Initial = AppRoutes.Initial;
+
+  static final NavigatorObserver observer = AppNavigatorObserver();
+  static List<String> history = [];
+
   static final pages = [
     // 免登陆
     GetPage(

lib/translations/app_translations.dart

@@ -0,0 +1,12 @@
+import 'package:get/get.dart';
+
+import 'en_US.dart';
+import 'zh_CN.dart';
+
+class AppTranslations extends Translations {
+  @override
+  Map<String, Map<String, String>> get keys => {
+        'en_US': enUS,
+        'zh_CN': zhCN,
+      };
+}

lib/translations/en_US.dart

@@ -0,0 +1,5 @@
+const Map<String, String> enUS = {
+  'title': 'This is Title!',
+  'login': 'logged in as @name with email @email',
+  'welcome': 'welcome',
+};

lib/translations/zh_CN.dart

@@ -0,0 +1,5 @@
+const Map<String, String> zhCN = {
+  'title': '这是标题',
+  'login': '登录用户 @name，邮箱账号 @email',
+  'Welcome': '欢迎',
+};