翻译您的 Expo and React Native 应用 | 国际化(i18n)

/**
 * 如果 Locales 类型不可用，尝试在你的 tsconfig.json 中将 moduleResolution 设置为 "bundler"
 */
import { Locales, type IntlayerConfig } from "intlayer";

const config: IntlayerConfig = {
  internationalization: {
    locales: [
      Locales.ENGLISH,
      Locales.FRENCH,
      Locales.SPANISH,
      // ... 添加你需要的其他语言环境
    ],
    defaultLocale: Locales.ENGLISH,
  },
};

export default config;

import { Stack } from "expo-router";
import { getLocales } from "expo-localization";
import { IntlayerProvider } from "react-native-intlayer";
import { type FC } from "react";


const getDeviceLocale = () => getLocales()[0]?.languageTag;

const RootLayout: FC = () => {
  return (
    <IntlayerProvider defaultLocale={getDeviceLocale()}>
      <Stack>
为了在您的应用程序中保持用户语言的同步，您需要使用来自 `react-intlayer` 的 `IntlayerProvider` 组件包裹您的根组件。

此外，您需要在 `index.js` 文件中添加 `intlayerPolyfill` 函数，以确保 Intlayer 能够正常工作。

```tsx fileName="app/_layout.tsx" codeFormat="typescript"
import { Stack } from "expo-router";
import { getLocales } from "expo-localization";
import { IntlayerProvider } from "react-native-intlayer";
import { type FC } from "react";


const getDeviceLocale = () => getLocales()[0]?.languageTag;

const RootLayout: FC = () => {
  return (
    <IntlayerProvider defaultLocale={getDeviceLocale()}>
      <Stack>
        <Stack.Screen name="(tabs)" options={{ headerShown: false }} />
      </Stack>
    </IntlayerProvider>
  );
};

export default RootLayout;

import { t, type Dictionary } from "intlayer";
import type { ReactNode } from "react";

/**
 * 我们的 "app" 域的内容字典
 */
import { t, type Dictionary } from "intlayer";

const homeScreenContent = {
  key: "home-screen",
  content: {
    title: t({
      en: "Welcome!",
      fr: "Bienvenue!",
      es: "¡Bienvenido!",
    }),
  },
} satisfies Dictionary;

export default homeScreenContent;

import { Image, StyleSheet, Platform } from "react-native";
import { useIntlayer } from "intlayer";
import { HelloWave } from "@/components/HelloWave";
import ParallaxScrollView from "@/components/ParallaxScrollView";
import { ThemedText } from "@/components/ThemedText";
import { ThemedView } from "@/components/ThemedView";
import { type FC } from "react";

const HomeScreen = (): FC => {
  const { title, steps } = useIntlayer("home-screen");

  return (
    <ParallaxScrollView
      headerBackgroundColor={{ light: "#A1CEDC", dark: "#1D3D47" }}
      headerImage={
        <Image
          source={require("@/assets/images/partial-react-logo.png")}
          style={styles.reactLogo}
        />
      }
    >
      <ThemedView style={styles.titleContainer}>
        <ThemedText type="title">{title}</ThemedText>
        <HelloWave />
      </ThemedView>
    </ParallaxScrollView>
  );
};

const styles = StyleSheet.create({
  titleContainer: {
    flexDirection: "row", // 横向排列
    alignItems: "center", // 垂直居中对齐
    gap: 8, // 元素间距为8
  },
});

export default HomeScreen;

import { type FC } from "react";
import { View, Text, TouchableOpacity, StyleSheet } from "react-native";
import { getLocaleName } from "intlayer";
import { useLocale } from "react-intlayer";

export const LocaleSwitcher: FC = () => {
  const { setLocale, availableLocales } = useLocale();

  return (
    <View style={styles.container}>
      {availableLocales.map((locale) => (
        <TouchableOpacity
          key={locale}
          style={styles.button}
          onPress={() => setLocale(locale)}
        >
          <Text style={styles.text}>{getLocaleName(locale)}</Text>
        </TouchableOpacity>
      ))}
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flexDirection: "row", // 容器内元素横向排列
    justifyContent: "center", // 水平居中对齐
    alignItems: "center", // 垂直居中对齐
    gap: 8, // 元素间距为8
  },
  button: {
    paddingVertical: 6, // 垂直内边距6
    paddingHorizontal: 12, // 水平内边距12
    borderRadius: 6, // 边角圆角半径6
    backgroundColor: "#ddd", // 背景颜色为浅灰色
  },
  text: {
    fontSize: 14, // 字体大小14
    fontWeight: "500", // 字体粗细500
    color: "#333", // 文字颜色深灰
  },
});