Flutter本地化插件native_locale的使用

Flutter本地化插件native_locale的使用

插件介绍

native_locale 是一个用于获取和更改原生平台 locale 的 Flutter 插件。由于 Flutter 的本地化完全独立于原生应用的本地化，当你打开另一个需要本地化的原生视图时，可能会遇到不匹配的 locales 问题。这个插件帮助你从 Dart 代码中程序化地更改应用程序的原生本地化。

平台支持

开始使用

在你的包的 pubspec.yaml 文件中添加以下内容：

dependencies:
  native_locale:

现在，在你的 Dart 代码中可以使用以下代码：

import 'package:native_locale/native_locale.dart';

使用示例

要获取平台的 locale，请运行以下命令：

await NativeLocale().getNativeLocale()

要设置平台的 locale，请运行以下命令：

await NativeLocale().setNativeLocale(const Locale('en'))

示例代码

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:native_locale/native_locale.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  [@override](/user/override)
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _nativeLocale = 'Unknown';
  final _nativeLocalePlugin = NativeLocale();

  [@override](/user/override)
  void initState() {
    super.initState();
    initLocaleState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initLocaleState() async {
    String nativeLocale;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      nativeLocale = await NativeLocale().getNativeLocale() ?? 'Unknown locale';
      await NativeLocale().setNativeLocale(const Locale('en')) ??
          'Unknown locale';
    } on PlatformException {
      nativeLocale = 'Failed to get native locale.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _nativeLocale = nativeLocale;
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Text('current native locale is: $_nativeLocale\n'),
        ),
      ),
    );
  }
}