我需要显示阿拉伯日期选择器

Question

我需要显示一个阿拉伯日期选择器，我无法使用 Locale 构造函数控制它。 它仅显示英文视图。

选择日期方法

  DateTime selectedDate = DateTime.now();

  Future<void> _selectDate(BuildContext context) async {
    final DateTime picked = await showDatePicker(
        context: context,
        initialDate: selectedDate,
        firstDate: DateTime(2000, 1),
        lastDate: DateTime(2100),
        builder: (BuildContext context, Widget child) {
          return Theme(
            data: Theme.of(context).copyWith(
                colorScheme: ColorScheme.light(primary: primaryColor)),
            child: child,
          );
        });

    if (picked != null && picked != selectedDate) {
      selectedDate = picked;
    }
  }

主屏幕

void main() async {
      WidgetsFlutterBinding.ensureInitialized();
      await GetStorage.init();
      runApp(
        MyApp(),
      );
    }

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return GetMaterialApp(
      debugShowCheckedModeBanner: false,
      translations: Translation(),
      locale: Locale(AuthController().appLocal.value),
      fallbackLocale: Locale(AuthController().appLocal.value),
      title: 'Hesabate App',
      theme: ThemeData(
        canvasColor: Colors.transparent,
        fontFamily: "NotoNaskhArabic_font",
      ),
      initialRoute: AppRoutes.splashScreen,
      getPages: AppRoutes.routes,
    );
  }
}

我在此变量中有更新的语言（en&ar）

AuthController().appLocal.value

Answer 1

谢谢，我找到了我正在寻找的解决方案。
为了解决这个问题，我做了一些步骤：

为了以本地语言显示日期选择器，您需要
使用flutter_localizations插件并指定localizationDelegates
以及主代码中 MaterialApp 内的supportedLocales

1.在 pubspec.yaml 中添加 flutter_localizations 插件并运行 pub get。

flutter_localizations:
        sdk: flutter

2.在 dart 文件中导入插件

import 'package:flutter_localizations/flutter_localizations.dart';

3.在 MaterialApp 中添加以下内容

  return GetMaterialApp(
       localizationsDelegates: [
         GlobalMaterialLocalizations.delegate
       ],
       supportedLocales: [
         const Locale('en'),
         const Locale('ar')
       ],

4.然后实现默认的 datePicker，如下所示

 DateTime selectedDate = DateTime.now();

  Future<void> _selectDate(BuildContext context) async {
    final DateTime picked = await showDatePicker(
        context: context,
        initialDate: selectedDate,
        firstDate: DateTime(2000, 1),
        lastDate: DateTime(2100),
        builder: (BuildContext context, Widget child) {
          return Theme(
            data: Theme.of(context).copyWith(
                colorScheme: ColorScheme.light(primary: primaryColor)),
            child: child,
          );
        });

    if (picked != null && picked != selectedDate) {
      selectedDate = picked;
    }
  }

5.最后将前面的方法调用到日期 TextField 中，如下所示

Expanded(
       child: CustomTextField(
         hint: "date".tr,
         onPress: () => _selectDate(context),
        ),

Answer 2

您能更具体地说明您正在使用哪个软件包吗？例如 flutter_datetime_picker 有参数 locale，您可以在其中传递 LocalType.ar

  static Future<DateTime?> showPicker(
BuildContext context, {
bool showTitleActions: true,
DateChangedCallback? onChanged,
DateChangedCallback? onConfirm,
DateCancelledCallback? onCancel,
locale: LocaleType.en,
BasePickerModel? pickerModel,
DatePickerTheme? theme,

根据 Nader 澄清编辑，您可以将 locale:Locale("ar") 传递给内部 date_picker

  const Locale(
this._languageCode, [
this._countryCode, ])

Answer 3

使用它对我有用 -

将 flutter_localizations 添加到 pub.yaml

将这两行添加到主要材质应用程序小部件

localizationsDelegates[GlobalMaterialLocalizations.delegate],
supportedLocales: [const Locale('en'), const Locale('ar')],

我的主要材质应用程序小部件中，我的主要外观 -

class MyApp extends StatelessWidget {
MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return GetMaterialApp(
    localizationsDelegates: [GlobalMaterialLocalizations.delegate],
    supportedLocales: [const Locale('en'), const Locale('ar')],
    debugShowCheckedModeBanner: false,
    initialRoute: get_initial_route(),
    getPages: app_routes());
}
}

将其放入此材料的任何子小部件的代码中 -

IconButton(
    onPressed: () async {
      final DateTime? pickedDate = await showDatePicker(
          context: context,
          initialDate: DateTime(1999),
          firstDate: DateTime(1960),
          lastDate: DateTime(2025),
          locale: Locale('ar'));
    },
    icon: Icon(
      Icons.date_range,
      color: Colors.blue,
    ),
  ),

我们已经完成了一切都应该没问题