lingui · andrii-bodnar · May 4, 2023 · Mar 12, 2023 · Mar 13, 2023 · Mar 29, 2023
diff --git a/examples/react-native/.gitignore b/examples/react-native/.gitignore
@@ -0,0 +1,27 @@
+node_modules/
+.expo/
+dist/
+npm-debug.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+*.orig.*
+web-build/
+
+# macOS
+.DS_Store
+
+# Temporary files created by Metro to check the health of the file watcher
+.metro-health-check*
+
+# js translation files should be generated as part of build process
+#src/locales/**/*.js
+
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
diff --git a/examples/react-native/.prettierrc b/examples/react-native/.prettierrc
@@ -0,0 +1,7 @@
+{
+  "singleQuote": false,
+  "trailingComma": "all",
+  "tabWidth": 2,
+  "bracketSpacing": true,
+  "printWidth": 90
+}
diff --git a/examples/react-native/.yarnrc.yml b/examples/react-native/.yarnrc.yml
@@ -0,0 +1 @@
+nodeLinker: node-modules
diff --git a/examples/react-native/App.tsx b/examples/react-native/App.tsx
@@ -0,0 +1,27 @@
+import "@formatjs/intl-locale/polyfill";
+
+import "@formatjs/intl-pluralrules/polyfill";
+import "@formatjs/intl-pluralrules/locale-data/en"; // locale-data for en
+import "@formatjs/intl-pluralrules/locale-data/cs"; // locale-data for cs
+
+import React from "react";
+import { Text } from "react-native";
+import { i18n } from "@lingui/core";
+import { I18nProvider, TransRenderProps } from "@lingui/react";
+
+import { messages } from "./src/locales/en/messages.js";
+import { Body } from "./src/MainScreen";
+
+i18n.loadAndActivate({ locale: "en", messages });
+
+const DefaultComponent = (props: TransRenderProps) => {
+  return <Text>{props.children}</Text>;
+};
+
+export default function Root() {
+  return (
+    <I18nProvider i18n={i18n} defaultComponent={DefaultComponent}>
+      <Body />
+    </I18nProvider>
+  );
+}
diff --git a/examples/react-native/README.md b/examples/react-native/README.md
@@ -0,0 +1,3 @@
+### Lingui Demo App
+
+- see https://lingui.dev/tutorials/react-native
diff --git a/examples/react-native/app.json b/examples/react-native/app.json
@@ -0,0 +1,31 @@
+{
+  "expo": {
+    "name": "js-lingui-demo",
+    "description": "This a simple demo app for lingui.js",
+    "slug": "js-lingui-demo",
+    "version": "2.0.1",
+    "orientation": "portrait",
+    "icon": "./assets/icon.png",
+    "userInterfaceStyle": "light",
+    "splash": {
+      "image": "./assets/splash.png",
+      "resizeMode": "contain",
+      "backgroundColor": "#ffffff"
+    },
+    "assetBundlePatterns": [
+      "**/*"
+    ],
+    "ios": {
+      "supportsTablet": true
+    },
+    "android": {
+      "adaptiveIcon": {
+        "foregroundImage": "./assets/adaptive-icon.png",
+        "backgroundColor": "#ffffff"
+      }
+    },
+    "web": {
+      "favicon": "./assets/favicon.png"
+    }
+  }
+}
diff --git a/examples/react-native/assets/adaptive-icon.png b/examples/react-native/assets/adaptive-icon.png
diff --git a/examples/react-native/assets/favicon.png b/examples/react-native/assets/favicon.png
diff --git a/examples/react-native/assets/icon.png b/examples/react-native/assets/icon.png
diff --git a/examples/react-native/assets/splash.png b/examples/react-native/assets/splash.png
diff --git a/examples/react-native/babel.config.js b/examples/react-native/babel.config.js
@@ -0,0 +1,7 @@
+module.exports = function (api) {
+  api.cache(false);
+  return {
+    plugins: ["macros"],
+    presets: ["babel-preset-expo"],
+  };
+};
diff --git a/examples/react-native/lingui.config.js b/examples/react-native/lingui.config.js
@@ -0,0 +1,12 @@
+/** @type {import('@lingui/conf').LinguiConfig} */
+module.exports = {
+  locales: ["en", "cs"],
+  sourceLocale: "en",
+  catalogs: [
+    {
+      path: "src/locales/{locale}/messages",
+      include: ["src"],
+    },
+  ],
+  format: "po",
+};
diff --git a/examples/react-native/metro.config.js b/examples/react-native/metro.config.js
@@ -0,0 +1,16 @@
+// Learn more https://docs.expo.io/guides/customizing-metro
+const { getDefaultConfig } = require("expo/metro-config");
+
+module.exports = (() => {
+  const config = getDefaultConfig(__dirname);
+
+  const { resolver } = config;
+
+  config.resolver = {
+    ...resolver,
+    // NOTE: in future, this will be enabled by default
+    unstable_enablePackageExports: true,
+  };
+
+  return config;
+})();
diff --git a/examples/react-native/package.json b/examples/react-native/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "lingui-demo",
+  "version": "1.0.0",
+  "main": "node_modules/expo/AppEntry.js",
+  "scripts": {
+    "start": "expo start -c",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "web": "expo start --web",
+    "extract": "lingui extract",
+    "compile": "lingui compile",
+    "no-dev": "npx expo start --no-dev --minify",
+    "inspectBundle": "npx react-native-bundle-visualizer"
+  },
+  "dependencies": {
+    "@formatjs/intl-locale": "^3.1.1",
+    "@formatjs/intl-pluralrules": "^5.1.10",
+    "@lingui/core": "^4.0.0",
+    "@lingui/react": "^4.0.0",
+    "expo": "~48.0.11",
+    "expo-status-bar": "~1.4.4",
+    "expo-updates": "~0.16.4",
+    "react": "18.2.0",
+    "react-native": "0.71.7"
+  },
+  "resolutions": {
+    "metro": "0.76.2"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.21.0",
+    "@lingui/cli": "^4.0.0",
+    "@lingui/macro": "^4.0.0",
+    "@types/react": "~18.0.14",
+    "babel-plugin-macros": "^3.1.0",
+    "prettier": "^2.8.4",
+    "typescript": "^4.9.4"
+  },
+  "private": true
+}
diff --git a/examples/react-native/src/Components.tsx b/examples/react-native/src/Components.tsx
@@ -0,0 +1,13 @@
+import { TextProps, Text } from "react-native";
+
+export const Heading = (props: Omit<TextProps, "style">) => {
+  return (
+    <Text
+      style={{
+        fontSize: 20,
+        fontWeight: "bold",
+      }}
+      {...props}
+    />
+  );
+};
diff --git a/examples/react-native/src/MainScreen.tsx b/examples/react-native/src/MainScreen.tsx
@@ -0,0 +1,121 @@
+import React, { useState } from "react";
+import { StyleSheet, Text, View, Alert, SafeAreaView } from "react-native";
+import { Plural, SelectOrdinal, t, Trans } from "@lingui/macro";
+import { useLingui } from "@lingui/react";
+import { Button } from "./PaddedButton";
+import { Heading } from "./Components";
+
+export const Body = React.memo(() => {
+  const [messages, setMessages] = useState<string[]>([]);
+  const { i18n } = useLingui();
+
+  const markAllAsRead = () => {
+    // NOTE - here we're implicitly using the i18n instance that does NOT come from the React context, but from @lingui/core
+    // this is because there is nothing that would need to re-render: we're just calling a function and displaying its result in an alert
+    Alert.alert("", t`Do you want to set all your messages as read?`, [
+      {
+        text: t`Yes`,
+        onPress: () => {
+          setMessages([]);
+        },
+      },
+      {
+        text: t`Cancel`,
+        style: "cancel",
+      },
+    ]);
+  };
+
+  const loadAndActivateLocale = () => {
+    const activeLanguage = i18n.locale;
+    const newActiveLanguage = activeLanguage === "en" ? "cs" : "en";
+    const catalog =
+      newActiveLanguage === "en"
+        ? require("./locales/en/messages.js")
+        : require("./locales/cs/messages.js");
+    i18n.load(newActiveLanguage, catalog.messages);
+    i18n.activate(newActiveLanguage);
+  };
+
+  return (
+    <SafeAreaView style={styles.container}>
+      <Button
+        onPress={loadAndActivateLocale}
+        title={t`Toggle language to ${i18n.locale === "en" ? "cs" : "en"}`}
+      />
+      <Inbox
+        markAsRead={markAllAsRead}
+        messages={messages}
+        addMessage={() => {
+          setMessages((prevMessages) =>
+            prevMessages.concat([`message # ${prevMessages.length + 1}`]),
+          );
+        }}
+      />
+    </SafeAreaView>
+  );
+});
+
+const Inbox = ({
+  messages,
+  markAsRead,
+  addMessage,
+}: {
+  messages: string[];
+  markAsRead: () => void;
+  addMessage: () => void;
+}) => {
+  const messagesCount = messages.length;
+
+  return (
+    <View style={styles.container}>
+      <View style={styles.container2}>
+        <Trans render={Heading}>Message Inbox</Trans>
+
+        <Button onPress={markAsRead} title={t`Mark messages as read`} />
+        <Button onPress={addMessage} title={t`Add a message to your inbox`} />
+
+        <Plural
+          value={messagesCount}
+          _0="You have no unread messages"
+          one="There's # message in your inbox"
+          few="There're # messages in your inbox"
+          other="There're # messages in your inbox"
+        />
+        {messages.map((message, index) => {
+          const messageIndex = index + 1;
+          return (
+            <View key={messageIndex} style={{ flexDirection: "row" }}>
+              <Text>{message}, </Text>
+              <Trans>order: </Trans>
+              <SelectOrdinal
+                value={messageIndex}
+                one="#st message"
+                two="#nd message"
+                few="#rd message"
+                other="#th message"
+              />
+            </View>
+          );
+        })}
+      </View>
+    </View>
+  );
+};
+
+const styles = StyleSheet.create({
+  container: {
+    paddingTop: 40,
+    flex: 1,
+    backgroundColor: "#fff",
+    alignItems: "center",
+  },
+  container2: {
+    alignItems: "center",
+    flex: 1,
+  },
+  heading: {
+    fontSize: 20,
+    fontWeight: "bold",
+  },
+});
diff --git a/examples/react-native/src/PaddedButton.tsx b/examples/react-native/src/PaddedButton.tsx
@@ -0,0 +1,24 @@
+import {
+  Button as RNButton,
+  StyleSheet,
+  View,
+  Platform,
+  ButtonProps,
+} from "react-native";
+import React from "react";
+
+export const Button = (props: ButtonProps) => (
+  <View style={styles.margin}>
+    <RNButton {...props} />
+  </View>
+);
+
+const styles = StyleSheet.create({
+  margin: {
+    ...Platform.select({
+      android: {
+        margin: 10,
+      },
+    }),
+  },
+});
diff --git a/examples/react-native/src/locales/cs/messages.js b/examples/react-native/src/locales/cs/messages.js
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		### Lingui Demo App

		- see https://lingui.dev/tutorials/react-native