u

code/app/app-rn3/app.json

@@ -7,7 +7,6 @@
     "icon": "./assets/images/icon.png",
     "scheme": "apprn3",
     "userInterfaceStyle": "automatic",
-    "newArchEnabled": true,
     "ios": {
       "supportsTablet": true
     },
@@ -18,7 +17,6 @@
         "backgroundImage": "./assets/images/android-icon-background.png",
         "monochromeImage": "./assets/images/android-icon-monochrome.png"
       },
-      "edgeToEdgeEnabled": true,
       "predictiveBackGestureEnabled": false
     },
     "web": {
@@ -39,7 +37,10 @@
             "backgroundColor": "#000000"
           }
         }
-      ]
+      ],
+      "expo-font",
+      "expo-image",
+      "expo-web-browser"
     ],
     "experiments": {
       "typedRoutes": true,

code/app/app-rn3/app/(tabs)/user/index.tsx

@@ -1,9 +1,56 @@
-import { View, Text } from "react-native";
+import { BlurView } from "expo-blur";
+import { useRef } from "react";
+import { Text, StyleSheet, View } from "react-native";
+
+export default function App() {
+  const targetRef = useRef<View | null>(null);
+  const text = "Hello, my container is blurring contents underneath!";
 
-export default function User() {
   return (
-    <View className="flex-1">
-      <Text>User</Text>
+    <View style={styles.container}>
+      <BlurView intensity={100} style={styles.blurContainer}>
+        <Text style={styles.text}>{text}</Text>
+      </BlurView>
+      <BlurView intensity={80} tint="light" style={styles.blurContainer}>
+        <Text style={styles.text}>{text}</Text>
+      </BlurView>
+      <BlurView intensity={90} tint="dark" style={styles.blurContainer}>
+        <Text style={[styles.text, { color: "#fff" }]}>{text}</Text>
+      </BlurView>
     </View>
   );
 }
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+  },
+  blurContainer: {
+    flex: 1,
+    padding: 20,
+    margin: 16,
+    textAlign: "center",
+    justifyContent: "center",
+    overflow: "hidden",
+    borderRadius: 20,
+  },
+  background: {
+    flex: 1,
+    flexWrap: "wrap",
+    ...StyleSheet.absoluteFill,
+  },
+  box: {
+    width: "25%",
+    height: "20%",
+  },
+  boxEven: {
+    backgroundColor: "orangered",
+  },
+  boxOdd: {
+    backgroundColor: "gold",
+  },
+  text: {
+    fontSize: 24,
+    fontWeight: "600",
+  },
+});

code/app/app-rn3/babel.config.js

@@ -1,6 +1,10 @@
 module.exports = function (api) {
   api.cache(true);
   return {
-    presets: [["babel-preset-expo", { jsxImportSource: "nativewind" }], "nativewind/babel"],
+    presets: [
+      require("nativewind/preset"),
+      [("babel-preset-expo", { jsxImportSource: "nativewind" })],
+      "nativewind/babel",
+    ],
   };
 };

code/app/app-rn3/components/common/tabbar.tsx

@@ -9,12 +9,13 @@ import Animated, {
   withTiming,
 } from "react-native-reanimated";
 import * as icons from "lucide-react-native/icons";
+import { BlurView } from "expo-blur";
 
 export interface TabbarItem {
   name: string;
   href: Href;
-  icon: keyof typeof icons; // 👈 传 icon 名字
-  label: string; // 👈 label
+  icon: keyof typeof icons;
+  label: string;
   onPress?: () => void;
 }
 
@@ -48,7 +49,6 @@ function TabButton({
     }
   }, [isFocused]);
 
-  // 👇 在内部统一处理 icon
   const LucideIcon = icons[iconName];
 
   return (
@@ -61,18 +61,13 @@ function TabButton({
       }}
     >
       <Animated.View style={animatedStyle}>
-        <LucideIcon
-          size={22}
-          color={"#333"}
-          fill={isFocused ? "#0284c7" : "#fff"} // 填充颜色
-          strokeWidth={2}
-        />
+        <LucideIcon size={22} color={isFocused ? "#111" : "#999"} strokeWidth={2} />
 
         <Text
           style={{
             fontSize: 10,
             marginTop: 2,
-            color: "#333",
+            color: isFocused ? "#111" : "#999",
           }}
         >
           {label}
@@ -88,7 +83,6 @@ export default function CustomTabbar({ data }: AppTabbarProps) {
 
   const [activeTab, setActiveTab] = useState("");
 
-  // 路由同步
   useEffect(() => {
     const match = data.find((item) => item.href === pathname);
     if (match) {
@@ -98,30 +92,38 @@ export default function CustomTabbar({ data }: AppTabbarProps) {
 
   const handlePressTab = (item: TabbarItem) => {
     setActiveTab(item.name);
-
     router.push(item.href);
-
     item.onPress?.();
   };
 
   return (
     <View
       style={{
-        flexDirection: "row",
-        height: 48,
-        alignItems: "center",
-        backgroundColor: "#fff",
+        position: "absolute",
+        bottom: 0,
+        left: 0,
+        right: 0,
       }}
     >
-      {data.map((item) => (
-        <TabButton
-          key={item.name}
-          iconName={item.icon}
-          label={item.label}
-          isFocused={activeTab === item.name}
-          onPress={() => handlePressTab(item)}
-        />
-      ))}
+      <BlurView
+        intensity={90}
+        tint="light"
+        blurMethod="dimezisBlurView"
+        style={{
+          flexDirection: "row",
+          height: 56,
+        }}
+      >
+        {data.map((item) => (
+          <TabButton
+            key={item.name}
+            iconName={item.icon}
+            label={item.label}
+            isFocused={activeTab === item.name}
+            onPress={() => handlePressTab(item)}
+          />
+        ))}
+      </BlurView>
     </View>
   );
 }

code/app/app-rn3/metro.config.js

@@ -1,6 +1,20 @@
+// metro.config.js
 const { getDefaultConfig } = require("expo/metro-config");
 const { withNativeWind } = require("nativewind/metro");
 
+/** @type {import('expo/metro-config').MetroConfig} */
 const config = getDefaultConfig(__dirname);
 
+config.transformer = {
+  ...config.transformer,
+  babelTransformerPath: require.resolve("react-native-svg-transformer/expo"),
+};
+
+config.resolver = {
+  ...config.resolver,
+  unstable_enablePackageExports: true,
+  assetExts: config.resolver.assetExts.filter((ext) => ext !== "svg"),
+  sourceExts: [...config.resolver.sourceExts, "svg"],
+};
+
 module.exports = withNativeWind(config, { input: "./styles/global.css" });

code/app/app-rn3/package.json

@@ -18,35 +18,36 @@
     "@react-navigation/bottom-tabs": "^7.4.0",
     "@react-navigation/elements": "^2.6.3",
     "@react-navigation/native": "^7.1.8",
-    "expo": "~54.0.33",
-    "expo-constants": "~18.0.13",
-    "expo-font": "~14.0.11",
-    "expo-haptics": "~15.0.8",
-    "expo-image": "~3.0.11",
-    "expo-linking": "~8.0.11",
-    "expo-router": "~6.0.23",
-    "expo-splash-screen": "~31.0.13",
-    "expo-status-bar": "~3.0.9",
-    "expo-symbols": "~1.0.8",
-    "expo-system-ui": "~6.0.9",
-    "expo-web-browser": "~15.0.10",
+    "expo": "~55.0.12",
+    "expo-blur": "~55.0.13",
+    "expo-constants": "~55.0.12",
+    "expo-font": "~55.0.6",
+    "expo-haptics": "~55.0.13",
+    "expo-image": "~55.0.8",
+    "expo-linking": "~55.0.11",
+    "expo-router": "~55.0.11",
+    "expo-splash-screen": "~55.0.16",
+    "expo-status-bar": "~55.0.5",
+    "expo-symbols": "~55.0.7",
+    "expo-system-ui": "~55.0.14",
+    "expo-web-browser": "~55.0.13",
     "lucide-react-native": "^1.7.0",
     "nativewind": "^4.2.3",
-    "react": "19.1.0",
-    "react-dom": "19.1.0",
-    "react-native": "0.81.5",
+    "react": "19.2.0",
+    "react-dom": "19.2.0",
+    "react-native": "0.83.4",
     "react-native-css-interop": "^0.2.3",
-    "react-native-gesture-handler": "~2.28.0",
-    "react-native-reanimated": "~4.1.7",
+    "react-native-gesture-handler": "~2.30.1",
+    "react-native-reanimated": "~4.2.1",
     "react-native-safe-area-context": "~5.6.2",
-    "react-native-screens": "~4.16.0",
-    "react-native-svg": "15.12.1",
+    "react-native-screens": "~4.23.0",
+    "react-native-svg": "15.15.3",
     "react-native-web": "~0.21.0",
-    "react-native-worklets": "0.5.1",
+    "react-native-worklets": "0.7.2",
     "zustand": "^5.0.12"
   },
   "devDependencies": {
-    "@types/react": "~19.1.0",
+    "@types/react": "~19.2.14",
     "babel-preset-expo": "^55.0.16",
     "oxfmt": "^0.44.0",
     "prettier-plugin-tailwindcss": "^0.5.14",

code/app/app-rn4/.gitignore

@@ -0,0 +1,43 @@
+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+expo-env.d.ts
+
+# Native
+.kotlin/
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+.DS_Store
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo
+
+app-example
+
+# generated native folders
+/ios
+/android

code/app/app-rn4/.vscode/extensions.json

@@ -0,0 +1 @@
+{ "recommendations": ["expo.vscode-expo-tools"] }

code/app/app-rn4/.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+  "editor.codeActionsOnSave": {
+    "source.fixAll": "explicit",
+    "source.organizeImports": "explicit",
+    "source.sortMembers": "explicit"
+  }
+}

code/app/app-rn4/README.md

@@ -0,0 +1,56 @@
+# Welcome to your Expo app 👋
+
+This is an [Expo](https://expo.dev) project created with [`create-expo-app`](https://www.npmjs.com/package/create-expo-app).
+
+## Get started
+
+1. Install dependencies
+
+   ```bash
+   npm install
+   ```
+
+2. Start the app
+
+   ```bash
+   npx expo start
+   ```
+
+In the output, you'll find options to open the app in a
+
+- [development build](https://docs.expo.dev/develop/development-builds/introduction/)
+- [Android emulator](https://docs.expo.dev/workflow/android-studio-emulator/)
+- [iOS simulator](https://docs.expo.dev/workflow/ios-simulator/)
+- [Expo Go](https://expo.dev/go), a limited sandbox for trying out app development with Expo
+
+You can start developing by editing the files inside the **app** directory. This project uses [file-based routing](https://docs.expo.dev/router/introduction).
+
+## Get a fresh project
+
+When you're ready, run:
+
+```bash
+npm run reset-project
+```
+
+This command will move the starter code to the **app-example** directory and create a blank **app** directory where you can start developing.
+
+### Other setup steps
+
+- To set up ESLint for linting, run `npx expo lint`, or follow our guide on ["Using ESLint and Prettier"](https://docs.expo.dev/guides/using-eslint/)
+- If you'd like to set up unit testing, follow our guide on ["Unit Testing with Jest"](https://docs.expo.dev/develop/unit-testing/)
+- Learn more about the TypeScript setup in this template in our guide on ["Using TypeScript"](https://docs.expo.dev/guides/typescript/)
+
+## Learn more
+
+To learn more about developing your project with Expo, look at the following resources:
+
+- [Expo documentation](https://docs.expo.dev/): Learn fundamentals, or go into advanced topics with our [guides](https://docs.expo.dev/guides).
+- [Learn Expo tutorial](https://docs.expo.dev/tutorial/introduction/): Follow a step-by-step tutorial where you'll create a project that runs on Android, iOS, and the web.
+
+## Join the community
+
+Join our community of developers creating universal apps.
+
+- [Expo on GitHub](https://github.com/expo/expo): View our open source platform and contribute.
+- [Discord community](https://chat.expo.dev): Chat with Expo users and ask questions.

code/app/app-rn4/app.json

@@ -0,0 +1,44 @@
+{
+  "expo": {
+    "name": "app-rn4",
+    "slug": "app-rn4",
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "icon": "./assets/images/icon.png",
+    "scheme": "apprn4",
+    "userInterfaceStyle": "automatic",
+    "ios": {
+      "icon": "./assets/expo.icon"
+    },
+    "android": {
+      "adaptiveIcon": {
+        "backgroundColor": "#E6F4FE",
+        "foregroundImage": "./assets/images/android-icon-foreground.png",
+        "backgroundImage": "./assets/images/android-icon-background.png",
+        "monochromeImage": "./assets/images/android-icon-monochrome.png"
+      },
+      "predictiveBackGestureEnabled": false
+    },
+    "web": {
+      "output": "static",
+      "favicon": "./assets/images/favicon.png"
+    },
+    "plugins": [
+      "expo-router",
+      [
+        "expo-splash-screen",
+        {
+          "backgroundColor": "#208AEF",
+          "android": {
+            "image": "./assets/images/splash-icon.png",
+            "imageWidth": 76
+          }
+        }
+      ]
+    ],
+    "experiments": {
+      "typedRoutes": true,
+      "reactCompiler": true
+    }
+  }
+}

code/app/app-rn4/assets/expo.icon/Assets/expo-symbol 2.svg

@@ -0,0 +1,3 @@
+<svg width="652" height="606" viewBox="0 0 652 606" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M353.554 0H298.446C273.006 0 249.684 14.6347 237.962 37.9539L4.37994 502.646C-1.04325 513.435 -1.45067 526.178 3.2716 537.313L22.6123 582.918C34.6475 611.297 72.5404 614.156 88.4414 587.885L309.863 222.063C313.34 216.317 319.439 212.826 326 212.826C332.561 212.826 338.659 216.317 342.137 222.063L563.559 587.885C579.46 614.156 617.352 611.297 629.388 582.918L648.728 537.313C653.451 526.178 653.043 513.435 647.62 502.646L414.038 37.9539C402.316 14.6347 378.994 0 353.554 0Z" fill="white"/>
+</svg>

code/app/app-rn4/assets/expo.icon/icon.json

@@ -0,0 +1,40 @@
+{
+  "fill" : {
+    "automatic-gradient" : "extended-srgb:0.00000,0.47843,1.00000,1.00000"
+  },
+  "groups" : [
+    {
+      "layers" : [
+        {
+          "image-name" : "expo-symbol 2.svg",
+          "name" : "expo-symbol 2",
+          "position" : {
+            "scale" : 1,
+            "translation-in-points" : [
+              1.1008400065293245e-05,
+              -16.046875
+            ]
+          }
+        },
+        {
+          "image-name" : "grid.png",
+          "name" : "grid"
+        }
+      ],
+      "shadow" : {
+        "kind" : "neutral",
+        "opacity" : 0.5
+      },
+      "translucency" : {
+        "enabled" : true,
+        "value" : 0.5
+      }
+    }
+  ],
+  "supported-platforms" : {
+    "circles" : [
+      "watchOS"
+    ],
+    "squares" : "shared"
+  }
+}

code/app/app-rn4/example/scripts/reset-project.js

@@ -0,0 +1,114 @@
+#!/usr/bin/env node
+
+/**
+ * This script is used to reset the project to a blank state.
+ * It deletes or moves the /src and /scripts directories to /example based on user input and creates a new /src/app directory with an index.tsx and _layout.tsx file.
+ * You can remove the `reset-project` script from package.json and safely delete this file after running it.
+ */
+
+const fs = require("fs");
+const path = require("path");
+const readline = require("readline");
+
+const root = process.cwd();
+const oldDirs = ["src", "scripts"];
+const exampleDir = "example";
+const newAppDir = "src/app";
+const exampleDirPath = path.join(root, exampleDir);
+
+const indexContent = `import { Text, View, StyleSheet } from "react-native";
+
+export default function Index() {
+  return (
+    <View style={styles.container}>
+      <Text>Edit src/app/index.tsx to edit this screen.</Text>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    alignItems: "center",
+    justifyContent: "center",
+  },
+});
+`;
+
+const layoutContent = `import { Stack } from "expo-router";
+
+export default function RootLayout() {
+  return <Stack />;
+}
+`;
+
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+
+const moveDirectories = async (userInput) => {
+  try {
+    if (userInput === "y") {
+      // Create the app-example directory
+      await fs.promises.mkdir(exampleDirPath, { recursive: true });
+      console.log(`📁 /${exampleDir} directory created.`);
+    }
+
+    // Move old directories to new app-example directory or delete them
+    for (const dir of oldDirs) {
+      const oldDirPath = path.join(root, dir);
+      if (fs.existsSync(oldDirPath)) {
+        if (userInput === "y") {
+          const newDirPath = path.join(root, exampleDir, dir);
+          await fs.promises.rename(oldDirPath, newDirPath);
+          console.log(`➡️ /${dir} moved to /${exampleDir}/${dir}.`);
+        } else {
+          await fs.promises.rm(oldDirPath, { recursive: true, force: true });
+          console.log(`❌ /${dir} deleted.`);
+        }
+      } else {
+        console.log(`➡️ /${dir} does not exist, skipping.`);
+      }
+    }
+
+    // Create new /src/app directory
+    const newAppDirPath = path.join(root, newAppDir);
+    await fs.promises.mkdir(newAppDirPath, { recursive: true });
+    console.log("\n📁 New /src/app directory created.");
+
+    // Create index.tsx
+    const indexPath = path.join(newAppDirPath, "index.tsx");
+    await fs.promises.writeFile(indexPath, indexContent);
+    console.log("📄 src/app/index.tsx created.");
+
+    // Create _layout.tsx
+    const layoutPath = path.join(newAppDirPath, "_layout.tsx");
+    await fs.promises.writeFile(layoutPath, layoutContent);
+    console.log("📄 src/app/_layout.tsx created.");
+
+    console.log("\n✅ Project reset complete. Next steps:");
+    console.log(
+      `1. Run \`npx expo start\` to start a development server.\n2. Edit src/app/index.tsx to edit the main screen.\n3. Put all your application code in /src, only screens and layout files should be in /src/app.${
+        userInput === "y"
+          ? `\n4. Delete the /${exampleDir} directory when you're done referencing it.`
+          : ""
+      }`
+    );
+  } catch (error) {
+    console.error(`❌ Error during script execution: ${error.message}`);
+  }
+};
+
+rl.question(
+  "Do you want to move existing files to /example instead of deleting them? (Y/n): ",
+  (answer) => {
+    const userInput = answer.trim().toLowerCase() || "y";
+    if (userInput === "y" || userInput === "n") {
+      moveDirectories(userInput).finally(() => rl.close());
+    } else {
+      console.log("❌ Invalid input. Please enter 'Y' or 'N'.");
+      rl.close();
+    }
+  }
+);

code/app/app-rn4/example/src/app/_layout.tsx

@@ -0,0 +1,16 @@
+import { DarkTheme, DefaultTheme, ThemeProvider } from '@react-navigation/native';
+import React from 'react';
+import { useColorScheme } from 'react-native';
+
+import { AnimatedSplashOverlay } from '@/components/animated-icon';
+import AppTabs from '@/components/app-tabs';
+
+export default function TabLayout() {
+  const colorScheme = useColorScheme();
+  return (
+    <ThemeProvider value={colorScheme === 'dark' ? DarkTheme : DefaultTheme}>
+      <AnimatedSplashOverlay />
+      <AppTabs />
+    </ThemeProvider>
+  );
+}

code/app/app-rn4/example/src/app/explore.tsx

@@ -0,0 +1,181 @@
+import { Image } from 'expo-image';
+import { SymbolView } from 'expo-symbols';
+import React from 'react';
+import { Platform, Pressable, ScrollView, StyleSheet } from 'react-native';
+import { useSafeAreaInsets } from 'react-native-safe-area-context';
+
+import { ExternalLink } from '@/components/external-link';
+import { ThemedText } from '@/components/themed-text';
+import { ThemedView } from '@/components/themed-view';
+import { Collapsible } from '@/components/ui/collapsible';
+import { WebBadge } from '@/components/web-badge';
+import { BottomTabInset, MaxContentWidth, Spacing } from '@/constants/theme';
+import { useTheme } from '@/hooks/use-theme';
+
+export default function TabTwoScreen() {
+  const safeAreaInsets = useSafeAreaInsets();
+  const insets = {
+    ...safeAreaInsets,
+    bottom: safeAreaInsets.bottom + BottomTabInset + Spacing.three,
+  };
+  const theme = useTheme();
+
+  const contentPlatformStyle = Platform.select({
+    android: {
+      paddingTop: insets.top,
+      paddingLeft: insets.left,
+      paddingRight: insets.right,
+      paddingBottom: insets.bottom,
+    },
+    web: {
+      paddingTop: Spacing.six,
+      paddingBottom: Spacing.four,
+    },
+  });
+
+  return (
+    <ScrollView
+      style={[styles.scrollView, { backgroundColor: theme.background }]}
+      contentInset={insets}
+      contentContainerStyle={[styles.contentContainer, contentPlatformStyle]}>
+      <ThemedView style={styles.container}>
+        <ThemedView style={styles.titleContainer}>
+          <ThemedText type="subtitle">Explore</ThemedText>
+          <ThemedText style={styles.centerText} themeColor="textSecondary">
+            This starter app includes example{'\n'}code to help you get started.
+          </ThemedText>
+
+          <ExternalLink href="https://docs.expo.dev" asChild>
+            <Pressable style={({ pressed }) => pressed && styles.pressed}>
+              <ThemedView type="backgroundElement" style={styles.linkButton}>
+                <ThemedText type="link">Expo documentation</ThemedText>
+                <SymbolView
+                  tintColor={theme.text}
+                  name={{ ios: 'arrow.up.right.square', android: 'link', web: 'link' }}
+                  size={12}
+                />
+              </ThemedView>
+            </Pressable>
+          </ExternalLink>
+        </ThemedView>
+
+        <ThemedView style={styles.sectionsWrapper}>
+          <Collapsible title="File-based routing">
+            <ThemedText type="small">
+              This app has two screens: <ThemedText type="code">src/app/index.tsx</ThemedText> and{' '}
+              <ThemedText type="code">src/app/explore.tsx</ThemedText>
+            </ThemedText>
+            <ThemedText type="small">
+              The layout file in <ThemedText type="code">src/app/_layout.tsx</ThemedText> sets up
+              the tab navigator.
+            </ThemedText>
+            <ExternalLink href="https://docs.expo.dev/router/introduction">
+              <ThemedText type="linkPrimary">Learn more</ThemedText>
+            </ExternalLink>
+          </Collapsible>
+
+          <Collapsible title="Android, iOS, and web support">
+            <ThemedView type="backgroundElement" style={styles.collapsibleContent}>
+              <ThemedText type="small">
+                You can open this project on Android, iOS, and the web. To open the web version,
+                press <ThemedText type="smallBold">w</ThemedText> in the terminal running this
+                project.
+              </ThemedText>
+              <Image
+                source={require('@/assets/images/tutorial-web.png')}
+                style={styles.imageTutorial}
+              />
+            </ThemedView>
+          </Collapsible>
+
+          <Collapsible title="Images">
+            <ThemedText type="small">
+              For static images, you can use the <ThemedText type="code">@2x</ThemedText> and{' '}
+              <ThemedText type="code">@3x</ThemedText> suffixes to provide files for different
+              screen densities.
+            </ThemedText>
+            <Image source={require('@/assets/images/react-logo.png')} style={styles.imageReact} />
+            <ExternalLink href="https://reactnative.dev/docs/images">
+              <ThemedText type="linkPrimary">Learn more</ThemedText>
+            </ExternalLink>
+          </Collapsible>
+
+          <Collapsible title="Light and dark mode components">
+            <ThemedText type="small">
+              This template has light and dark mode support. The{' '}
+              <ThemedText type="code">useColorScheme()</ThemedText> hook lets you inspect what the
+              user&apos;s current color scheme is, and so you can adjust UI colors accordingly.
+            </ThemedText>
+            <ExternalLink href="https://docs.expo.dev/develop/user-interface/color-themes/">
+              <ThemedText type="linkPrimary">Learn more</ThemedText>
+            </ExternalLink>
+          </Collapsible>
+
+          <Collapsible title="Animations">
+            <ThemedText type="small">
+              This template includes an example of an animated component. The{' '}
+              <ThemedText type="code">src/components/ui/collapsible.tsx</ThemedText> component uses
+              the powerful <ThemedText type="code">react-native-reanimated</ThemedText> library to
+              animate opening this hint.
+            </ThemedText>
+          </Collapsible>
+        </ThemedView>
+        {Platform.OS === 'web' && <WebBadge />}
+      </ThemedView>
+    </ScrollView>
+  );
+}
+
+const styles = StyleSheet.create({
+  scrollView: {
+    flex: 1,
+  },
+  contentContainer: {
+    flexDirection: 'row',
+    justifyContent: 'center',
+  },
+  container: {
+    maxWidth: MaxContentWidth,
+    flexGrow: 1,
+  },
+  titleContainer: {
+    gap: Spacing.three,
+    alignItems: 'center',
+    paddingHorizontal: Spacing.four,
+    paddingVertical: Spacing.six,
+  },
+  centerText: {
+    textAlign: 'center',
+  },
+  pressed: {
+    opacity: 0.7,
+  },
+  linkButton: {
+    flexDirection: 'row',
+    paddingHorizontal: Spacing.four,
+    paddingVertical: Spacing.two,
+    borderRadius: Spacing.five,
+    justifyContent: 'center',
+    gap: Spacing.one,
+    alignItems: 'center',
+  },
+  sectionsWrapper: {
+    gap: Spacing.five,
+    paddingHorizontal: Spacing.four,
+    paddingTop: Spacing.three,
+  },
+  collapsibleContent: {
+    alignItems: 'center',
+  },
+  imageTutorial: {
+    width: '100%',
+    aspectRatio: 296 / 171,
+    borderRadius: Spacing.three,
+    marginTop: Spacing.two,
+  },
+  imageReact: {
+    width: 100,
+    height: 100,
+    alignSelf: 'center',
+  },
+});

code/app/app-rn4/example/src/app/index.tsx

@@ -0,0 +1,98 @@
+import * as Device from 'expo-device';
+import { Platform, StyleSheet } from 'react-native';
+import { SafeAreaView } from 'react-native-safe-area-context';
+
+import { AnimatedIcon } from '@/components/animated-icon';
+import { HintRow } from '@/components/hint-row';
+import { ThemedText } from '@/components/themed-text';
+import { ThemedView } from '@/components/themed-view';
+import { WebBadge } from '@/components/web-badge';
+import { BottomTabInset, MaxContentWidth, Spacing } from '@/constants/theme';
+
+function getDevMenuHint() {
+  if (Platform.OS === 'web') {
+    return <ThemedText type="small">use browser devtools</ThemedText>;
+  }
+  if (Device.isDevice) {
+    return (
+      <ThemedText type="small">
+        shake device or press <ThemedText type="code">m</ThemedText> in terminal
+      </ThemedText>
+    );
+  }
+  const shortcut = Platform.OS === 'android' ? 'cmd+m (or ctrl+m)' : 'cmd+d';
+  return (
+    <ThemedText type="small">
+      press <ThemedText type="code">{shortcut}</ThemedText>
+    </ThemedText>
+  );
+}
+
+export default function HomeScreen() {
+  return (
+    <ThemedView style={styles.container}>
+      <SafeAreaView style={styles.safeArea}>
+        <ThemedView style={styles.heroSection}>
+          <AnimatedIcon />
+          <ThemedText type="title" style={styles.title}>
+            Welcome to&nbsp;Expo
+          </ThemedText>
+        </ThemedView>
+
+        <ThemedText type="code" style={styles.code}>
+          get started
+        </ThemedText>
+
+        <ThemedView type="backgroundElement" style={styles.stepContainer}>
+          <HintRow
+            title="Try editing"
+            hint={<ThemedText type="code">src/app/index.tsx</ThemedText>}
+          />
+          <HintRow title="Dev tools" hint={getDevMenuHint()} />
+          <HintRow
+            title="Fresh start"
+            hint={<ThemedText type="code">npm run reset-project</ThemedText>}
+          />
+        </ThemedView>
+
+        {Platform.OS === 'web' && <WebBadge />}
+      </SafeAreaView>
+    </ThemedView>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    justifyContent: 'center',
+    flexDirection: 'row',
+  },
+  safeArea: {
+    flex: 1,
+    paddingHorizontal: Spacing.four,
+    alignItems: 'center',
+    gap: Spacing.three,
+    paddingBottom: BottomTabInset + Spacing.three,
+    maxWidth: MaxContentWidth,
+  },
+  heroSection: {
+    alignItems: 'center',
+    justifyContent: 'center',
+    flex: 1,
+    paddingHorizontal: Spacing.four,
+    gap: Spacing.four,
+  },
+  title: {
+    textAlign: 'center',
+  },
+  code: {
+    textTransform: 'uppercase',
+  },
+  stepContainer: {
+    gap: Spacing.three,
+    alignSelf: 'stretch',
+    paddingHorizontal: Spacing.three,
+    paddingVertical: Spacing.four,
+    borderRadius: Spacing.four,
+  },
+});

code/app/app-rn4/example/src/components/animated-icon.module.css

@@ -0,0 +1,6 @@
+.expoLogoBackground {
+  background-image: linear-gradient(180deg, #3c9ffe, #0274df);
+  border-radius: 40px;
+  width: 128px;
+  height: 128px;
+}

code/app/app-rn4/example/src/components/animated-icon.tsx

@@ -0,0 +1,132 @@
+import { Image } from 'expo-image';
+import { useState } from 'react';
+import { Dimensions, StyleSheet, View } from 'react-native';
+import Animated, { Easing, Keyframe } from 'react-native-reanimated';
+import { scheduleOnRN } from 'react-native-worklets';
+
+const INITIAL_SCALE_FACTOR = Dimensions.get('screen').height / 90;
+const DURATION = 600;
+
+export function AnimatedSplashOverlay() {
+  const [visible, setVisible] = useState(true);
+
+  if (!visible) return null;
+
+  const splashKeyframe = new Keyframe({
+    0: {
+      transform: [{ scale: INITIAL_SCALE_FACTOR }],
+      opacity: 1,
+    },
+    20: {
+      opacity: 1,
+    },
+    70: {
+      opacity: 0,
+      easing: Easing.elastic(0.7),
+    },
+    100: {
+      opacity: 0,
+      transform: [{ scale: 1 }],
+      easing: Easing.elastic(0.7),
+    },
+  });
+
+  return (
+    <Animated.View
+      entering={splashKeyframe.duration(DURATION).withCallback((finished) => {
+        'worklet';
+        if (finished) {
+          scheduleOnRN(setVisible, false);
+        }
+      })}
+      style={styles.backgroundSolidColor}
+    />
+  );
+}
+
+const keyframe = new Keyframe({
+  0: {
+    transform: [{ scale: INITIAL_SCALE_FACTOR }],
+  },
+  100: {
+    transform: [{ scale: 1 }],
+    easing: Easing.elastic(0.7),
+  },
+});
+
+const logoKeyframe = new Keyframe({
+  0: {
+    transform: [{ scale: 1.3 }],
+    opacity: 0,
+  },
+  40: {
+    transform: [{ scale: 1.3 }],
+    opacity: 0,
+    easing: Easing.elastic(0.7),
+  },
+  100: {
+    opacity: 1,
+    transform: [{ scale: 1 }],
+    easing: Easing.elastic(0.7),
+  },
+});
+
+const glowKeyframe = new Keyframe({
+  0: {
+    transform: [{ rotateZ: '0deg' }],
+  },
+  100: {
+    transform: [{ rotateZ: '7200deg' }],
+  },
+});
+
+export function AnimatedIcon() {
+  return (
+    <View style={styles.iconContainer}>
+      <Animated.View entering={glowKeyframe.duration(60 * 1000 * 4)} style={styles.glow}>
+        <Image style={styles.glow} source={require('@/assets/images/logo-glow.png')} />
+      </Animated.View>
+
+      <Animated.View entering={keyframe.duration(DURATION)} style={styles.background} />
+      <Animated.View style={styles.imageContainer} entering={logoKeyframe.duration(DURATION)}>
+        <Image style={styles.image} source={require('@/assets/images/expo-logo.png')} />
+      </Animated.View>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  imageContainer: {
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  glow: {
+    width: 201,
+    height: 201,
+    position: 'absolute',
+  },
+  iconContainer: {
+    justifyContent: 'center',
+    alignItems: 'center',
+    width: 128,
+    height: 128,
+    zIndex: 100,
+  },
+  image: {
+    position: 'absolute',
+    width: 76,
+    height: 71,
+  },
+  background: {
+    borderRadius: 40,
+    experimental_backgroundImage: `linear-gradient(180deg, #3C9FFE, #0274DF)`,
+    width: 128,
+    height: 128,
+    position: 'absolute',
+  },
+  backgroundSolidColor: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: '#208AEF',
+    zIndex: 1000,
+  },
+});

code/app/app-rn4/example/src/components/animated-icon.web.tsx

@@ -0,0 +1,108 @@
+import { Image } from 'expo-image';
+import { StyleSheet, View } from 'react-native';
+import Animated, { Keyframe, Easing } from 'react-native-reanimated';
+
+import classes from './animated-icon.module.css';
+const DURATION = 300;
+
+export function AnimatedSplashOverlay() {
+  return null;
+}
+
+const keyframe = new Keyframe({
+  0: {
+    transform: [{ scale: 0 }],
+  },
+  60: {
+    transform: [{ scale: 1.2 }],
+    easing: Easing.elastic(1.2),
+  },
+  100: {
+    transform: [{ scale: 1 }],
+    easing: Easing.elastic(1.2),
+  },
+});
+
+const logoKeyframe = new Keyframe({
+  0: {
+    opacity: 0,
+  },
+  60: {
+    transform: [{ scale: 1.2 }],
+    opacity: 0,
+    easing: Easing.elastic(1.2),
+  },
+  100: {
+    transform: [{ scale: 1 }],
+    opacity: 1,
+    easing: Easing.elastic(1.2),
+  },
+});
+
+const glowKeyframe = new Keyframe({
+  0: {
+    transform: [{ rotateZ: '-180deg' }, { scale: 0.8 }],
+    opacity: 0,
+  },
+  [DURATION / 1000]: {
+    transform: [{ rotateZ: '0deg' }, { scale: 1 }],
+    opacity: 1,
+    easing: Easing.elastic(0.7),
+  },
+  100: {
+    transform: [{ rotateZ: '7200deg' }],
+  },
+});
+
+export function AnimatedIcon() {
+  return (
+    <View style={styles.iconContainer}>
+      <Animated.View entering={glowKeyframe.duration(60 * 1000 * 4)} style={styles.glow}>
+        <Image style={styles.glow} source={require('@/assets/images/logo-glow.png')} />
+      </Animated.View>
+
+      <Animated.View style={styles.background} entering={keyframe.duration(DURATION)}>
+        <div className={classes.expoLogoBackground} />
+      </Animated.View>
+
+      <Animated.View style={styles.imageContainer} entering={logoKeyframe.duration(DURATION)}>
+        <Image style={styles.image} source={require('@/assets/images/expo-logo.png')} />
+      </Animated.View>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    alignItems: 'center',
+    width: '100%',
+    zIndex: 1000,
+    position: 'absolute',
+    top: 128 / 2 + 138,
+  },
+  imageContainer: {
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  glow: {
+    width: 201,
+    height: 201,
+    position: 'absolute',
+  },
+  iconContainer: {
+    justifyContent: 'center',
+    alignItems: 'center',
+    width: 128,
+    height: 128,
+  },
+  image: {
+    position: 'absolute',
+    width: 76,
+    height: 71,
+  },
+  background: {
+    width: 128,
+    height: 128,
+    position: 'absolute',
+  },
+});

code/app/app-rn4/example/src/components/app-tabs.tsx

@@ -0,0 +1,33 @@
+import { NativeTabs } from 'expo-router/unstable-native-tabs';
+import React from 'react';
+import { useColorScheme } from 'react-native';
+
+import { Colors } from '@/constants/theme';
+
+export default function AppTabs() {
+  const scheme = useColorScheme();
+  const colors = Colors[scheme === 'unspecified' ? 'light' : scheme];
+
+  return (
+    <NativeTabs
+      backgroundColor={colors.background}
+      indicatorColor={colors.backgroundElement}
+      labelStyle={{ selected: { color: colors.text } }}>
+      <NativeTabs.Trigger name="index">
+        <NativeTabs.Trigger.Label>Home</NativeTabs.Trigger.Label>
+        <NativeTabs.Trigger.Icon
+          src={require('@/assets/images/tabIcons/home.png')}
+          renderingMode="template"
+        />
+      </NativeTabs.Trigger>
+
+      <NativeTabs.Trigger name="explore">
+        <NativeTabs.Trigger.Label>Explore</NativeTabs.Trigger.Label>
+        <NativeTabs.Trigger.Icon
+          src={require('@/assets/images/tabIcons/explore.png')}
+          renderingMode="template"
+        />
+      </NativeTabs.Trigger>
+    </NativeTabs>
+  );
+}

code/app/app-rn4/example/src/components/app-tabs.web.tsx

@@ -0,0 +1,116 @@
+import {
+  Tabs,
+  TabList,
+  TabTrigger,
+  TabSlot,
+  TabTriggerSlotProps,
+  TabListProps,
+} from 'expo-router/ui';
+import { SymbolView } from 'expo-symbols';
+import React from 'react';
+import { Pressable, useColorScheme, View, StyleSheet } from 'react-native';
+
+import { ExternalLink } from './external-link';
+import { ThemedText } from './themed-text';
+import { ThemedView } from './themed-view';
+
+import { Colors, MaxContentWidth, Spacing } from '@/constants/theme';
+
+export default function AppTabs() {
+  return (
+    <Tabs>
+      <TabSlot style={{ height: '100%' }} />
+      <TabList asChild>
+        <CustomTabList>
+          <TabTrigger name="home" href="/" asChild>
+            <TabButton>Home</TabButton>
+          </TabTrigger>
+          <TabTrigger name="explore" href="/explore" asChild>
+            <TabButton>Explore</TabButton>
+          </TabTrigger>
+        </CustomTabList>
+      </TabList>
+    </Tabs>
+  );
+}
+
+export function TabButton({ children, isFocused, ...props }: TabTriggerSlotProps) {
+  return (
+    <Pressable {...props} style={({ pressed }) => pressed && styles.pressed}>
+      <ThemedView
+        type={isFocused ? 'backgroundSelected' : 'backgroundElement'}
+        style={styles.tabButtonView}>
+        <ThemedText type="small" themeColor={isFocused ? 'text' : 'textSecondary'}>
+          {children}
+        </ThemedText>
+      </ThemedView>
+    </Pressable>
+  );
+}
+
+export function CustomTabList(props: TabListProps) {
+  const scheme = useColorScheme();
+  const colors = Colors[scheme === 'unspecified' ? 'light' : scheme];
+
+  return (
+    <View {...props} style={styles.tabListContainer}>
+      <ThemedView type="backgroundElement" style={styles.innerContainer}>
+        <ThemedText type="smallBold" style={styles.brandText}>
+          Expo Starter
+        </ThemedText>
+
+        {props.children}
+
+        <ExternalLink href="https://docs.expo.dev" asChild>
+          <Pressable style={styles.externalPressable}>
+            <ThemedText type="link">Docs</ThemedText>
+            <SymbolView
+              tintColor={colors.text}
+              name={{ ios: 'arrow.up.right.square', web: 'link' }}
+              size={12}
+            />
+          </Pressable>
+        </ExternalLink>
+      </ThemedView>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  tabListContainer: {
+    position: 'absolute',
+    width: '100%',
+    padding: Spacing.three,
+    justifyContent: 'center',
+    alignItems: 'center',
+    flexDirection: 'row',
+  },
+  innerContainer: {
+    paddingVertical: Spacing.two,
+    paddingHorizontal: Spacing.five,
+    borderRadius: Spacing.five,
+    flexDirection: 'row',
+    alignItems: 'center',
+    flexGrow: 1,
+    gap: Spacing.two,
+    maxWidth: MaxContentWidth,
+  },
+  brandText: {
+    marginRight: 'auto',
+  },
+  pressed: {
+    opacity: 0.7,
+  },
+  tabButtonView: {
+    paddingVertical: Spacing.one,
+    paddingHorizontal: Spacing.three,
+    borderRadius: Spacing.three,
+  },
+  externalPressable: {
+    flexDirection: 'row',
+    justifyContent: 'center',
+    alignItems: 'center',
+    gap: Spacing.one,
+    marginLeft: Spacing.three,
+  },
+});

code/app/app-rn4/example/src/components/external-link.tsx

@@ -0,0 +1,25 @@
+import { Href, Link } from 'expo-router';
+import { openBrowserAsync, WebBrowserPresentationStyle } from 'expo-web-browser';
+import { type ComponentProps } from 'react';
+
+type Props = Omit<ComponentProps<typeof Link>, 'href'> & { href: Href & string };
+
+export function ExternalLink({ href, ...rest }: Props) {
+  return (
+    <Link
+      target="_blank"
+      {...rest}
+      href={href}
+      onPress={async (event) => {
+        if (process.env.EXPO_OS !== 'web') {
+          // Prevent the default behavior of linking to the default browser on native.
+          event.preventDefault();
+          // Open the link in an in-app browser.
+          await openBrowserAsync(href, {
+            presentationStyle: WebBrowserPresentationStyle.AUTOMATIC,
+          });
+        }
+      }}
+    />
+  );
+}

code/app/app-rn4/example/src/components/hint-row.tsx

@@ -0,0 +1,35 @@
+import React, { type ReactNode } from 'react';
+import { View, StyleSheet } from 'react-native';
+
+import { ThemedText } from './themed-text';
+import { ThemedView } from './themed-view';
+
+import { Spacing } from '@/constants/theme';
+
+type HintRowProps = {
+  title?: string;
+  hint?: ReactNode;
+};
+
+export function HintRow({ title = 'Try editing', hint = 'app/index.tsx' }: HintRowProps) {
+  return (
+    <View style={styles.stepRow}>
+      <ThemedText type="small">{title}</ThemedText>
+      <ThemedView type="backgroundSelected" style={styles.codeSnippet}>
+        <ThemedText themeColor="textSecondary">{hint}</ThemedText>
+      </ThemedView>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  stepRow: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+  },
+  codeSnippet: {
+    borderRadius: Spacing.two,
+    paddingVertical: Spacing.half,
+    paddingHorizontal: Spacing.two,
+  },
+});

code/app/app-rn4/example/src/components/themed-text.tsx

@@ -0,0 +1,73 @@
+import { Platform, StyleSheet, Text, type TextProps } from 'react-native';
+
+import { Fonts, ThemeColor } from '@/constants/theme';
+import { useTheme } from '@/hooks/use-theme';
+
+export type ThemedTextProps = TextProps & {
+  type?: 'default' | 'title' | 'small' | 'smallBold' | 'subtitle' | 'link' | 'linkPrimary' | 'code';
+  themeColor?: ThemeColor;
+};
+
+export function ThemedText({ style, type = 'default', themeColor, ...rest }: ThemedTextProps) {
+  const theme = useTheme();
+
+  return (
+    <Text
+      style={[
+        { color: theme[themeColor ?? 'text'] },
+        type === 'default' && styles.default,
+        type === 'title' && styles.title,
+        type === 'small' && styles.small,
+        type === 'smallBold' && styles.smallBold,
+        type === 'subtitle' && styles.subtitle,
+        type === 'link' && styles.link,
+        type === 'linkPrimary' && styles.linkPrimary,
+        type === 'code' && styles.code,
+        style,
+      ]}
+      {...rest}
+    />
+  );
+}
+
+const styles = StyleSheet.create({
+  small: {
+    fontSize: 14,
+    lineHeight: 20,
+    fontWeight: 500,
+  },
+  smallBold: {
+    fontSize: 14,
+    lineHeight: 20,
+    fontWeight: 700,
+  },
+  default: {
+    fontSize: 16,
+    lineHeight: 24,
+    fontWeight: 500,
+  },
+  title: {
+    fontSize: 48,
+    fontWeight: 600,
+    lineHeight: 52,
+  },
+  subtitle: {
+    fontSize: 32,
+    lineHeight: 44,
+    fontWeight: 600,
+  },
+  link: {
+    lineHeight: 30,
+    fontSize: 14,
+  },
+  linkPrimary: {
+    lineHeight: 30,
+    fontSize: 14,
+    color: '#3c87f7',
+  },
+  code: {
+    fontFamily: Fonts.mono,
+    fontWeight: Platform.select({ android: 700 }) ?? 500,
+    fontSize: 12,
+  },
+});

code/app/app-rn4/example/src/components/themed-view.tsx

@@ -0,0 +1,16 @@
+import { View, type ViewProps } from 'react-native';
+
+import { ThemeColor } from '@/constants/theme';
+import { useTheme } from '@/hooks/use-theme';
+
+export type ThemedViewProps = ViewProps & {
+  lightColor?: string;
+  darkColor?: string;
+  type?: ThemeColor;
+};
+
+export function ThemedView({ style, lightColor, darkColor, type, ...otherProps }: ThemedViewProps) {
+  const theme = useTheme();
+
+  return <View style={[{ backgroundColor: theme[type ?? 'background'] }, style]} {...otherProps} />;
+}

code/app/app-rn4/example/src/components/ui/collapsible.tsx

@@ -0,0 +1,65 @@
+import { SymbolView } from 'expo-symbols';
+import { PropsWithChildren, useState } from 'react';
+import { Pressable, StyleSheet } from 'react-native';
+import Animated, { FadeIn } from 'react-native-reanimated';
+
+import { ThemedText } from '@/components/themed-text';
+import { ThemedView } from '@/components/themed-view';
+import { Spacing } from '@/constants/theme';
+import { useTheme } from '@/hooks/use-theme';
+
+export function Collapsible({ children, title }: PropsWithChildren & { title: string }) {
+  const [isOpen, setIsOpen] = useState(false);
+  const theme = useTheme();
+
+  return (
+    <ThemedView>
+      <Pressable
+        style={({ pressed }) => [styles.heading, pressed && styles.pressedHeading]}
+        onPress={() => setIsOpen((value) => !value)}>
+        <ThemedView type="backgroundElement" style={styles.button}>
+          <SymbolView
+            name={{ ios: 'chevron.right', android: 'chevron_right', web: 'chevron_right' }}
+            size={14}
+            weight="bold"
+            tintColor={theme.text}
+            style={{ transform: [{ rotate: isOpen ? '-90deg' : '90deg' }] }}
+          />
+        </ThemedView>
+
+        <ThemedText type="small">{title}</ThemedText>
+      </Pressable>
+      {isOpen && (
+        <Animated.View entering={FadeIn.duration(200)}>
+          <ThemedView type="backgroundElement" style={styles.content}>
+            {children}
+          </ThemedView>
+        </Animated.View>
+      )}
+    </ThemedView>
+  );
+}
+
+const styles = StyleSheet.create({
+  heading: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    gap: Spacing.two,
+  },
+  pressedHeading: {
+    opacity: 0.7,
+  },
+  button: {
+    width: Spacing.four,
+    height: Spacing.four,
+    borderRadius: 12,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  content: {
+    marginTop: Spacing.three,
+    borderRadius: Spacing.three,
+    marginLeft: Spacing.four,
+    padding: Spacing.four,
+  },
+});

code/app/app-rn4/example/src/components/web-badge.tsx

@@ -0,0 +1,44 @@
+import { version } from 'expo/package.json';
+import { Image } from 'expo-image';
+import React from 'react';
+import { useColorScheme, StyleSheet } from 'react-native';
+
+import { ThemedText } from './themed-text';
+import { ThemedView } from './themed-view';
+
+import { Spacing } from '@/constants/theme';
+
+export function WebBadge() {
+  const scheme = useColorScheme();
+
+  return (
+    <ThemedView style={styles.container}>
+      <ThemedText type="code" themeColor="textSecondary" style={styles.versionText}>
+        v{version}
+      </ThemedText>
+      <Image
+        source={
+          scheme === 'dark'
+            ? require('@/assets/images/expo-badge-white.png')
+            : require('@/assets/images/expo-badge.png')
+        }
+        style={styles.badgeImage}
+      />
+    </ThemedView>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    padding: Spacing.five,
+    alignItems: 'center',
+    gap: Spacing.two,
+  },
+  versionText: {
+    textAlign: 'center',
+  },
+  badgeImage: {
+    width: 123,
+    aspectRatio: 123 / 24,
+  },
+});

code/app/app-rn4/example/src/constants/theme.ts

@@ -0,0 +1,65 @@
+/**
+ * Below are the colors that are used in the app. The colors are defined in the light and dark mode.
+ * There are many other ways to style your app. For example, [Nativewind](https://www.nativewind.dev/), [Tamagui](https://tamagui.dev/), [unistyles](https://reactnativeunistyles.vercel.app), etc.
+ */
+
+import '@/global.css';
+
+import { Platform } from 'react-native';
+
+export const Colors = {
+  light: {
+    text: '#000000',
+    background: '#ffffff',
+    backgroundElement: '#F0F0F3',
+    backgroundSelected: '#E0E1E6',
+    textSecondary: '#60646C',
+  },
+  dark: {
+    text: '#ffffff',
+    background: '#000000',
+    backgroundElement: '#212225',
+    backgroundSelected: '#2E3135',
+    textSecondary: '#B0B4BA',
+  },
+} as const;
+
+export type ThemeColor = keyof typeof Colors.light & keyof typeof Colors.dark;
+
+export const Fonts = Platform.select({
+  ios: {
+    /** iOS `UIFontDescriptorSystemDesignDefault` */
+    sans: 'system-ui',
+    /** iOS `UIFontDescriptorSystemDesignSerif` */
+    serif: 'ui-serif',
+    /** iOS `UIFontDescriptorSystemDesignRounded` */
+    rounded: 'ui-rounded',
+    /** iOS `UIFontDescriptorSystemDesignMonospaced` */
+    mono: 'ui-monospace',
+  },
+  default: {
+    sans: 'normal',
+    serif: 'serif',
+    rounded: 'normal',
+    mono: 'monospace',
+  },
+  web: {
+    sans: 'var(--font-display)',
+    serif: 'var(--font-serif)',
+    rounded: 'var(--font-rounded)',
+    mono: 'var(--font-mono)',
+  },
+});
+
+export const Spacing = {
+  half: 2,
+  one: 4,
+  two: 8,
+  three: 16,
+  four: 24,
+  five: 32,
+  six: 64,
+} as const;
+
+export const BottomTabInset = Platform.select({ ios: 50, android: 80 }) ?? 0;
+export const MaxContentWidth = 800;

code/app/app-rn4/example/src/global.css

@@ -0,0 +1,9 @@
+:root {
+  --font-display:
+    Spline Sans, Inter, ui-sans-serif, system-ui, sans-serif, Apple Color Emoji, Segoe UI Emoji,
+    Segoe UI Symbol, Noto Color Emoji;
+  --font-mono:
+    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, Liberation Mono, Courier New, monospace;
+  --font-rounded: 'SF Pro Rounded', 'Hiragino Maru Gothic ProN', Meiryo, 'MS PGothic', sans-serif;
+  --font-serif: Georgia, 'Times New Roman', serif;
+}

code/app/app-rn4/example/src/hooks/use-color-scheme.ts

@@ -0,0 +1 @@
+export { useColorScheme } from 'react-native';

code/app/app-rn4/example/src/hooks/use-color-scheme.web.ts

@@ -0,0 +1,21 @@
+import { useEffect, useState } from 'react';
+import { useColorScheme as useRNColorScheme } from 'react-native';
+
+/**
+ * To support static rendering, this value needs to be re-calculated on the client side for web
+ */
+export function useColorScheme() {
+  const [hasHydrated, setHasHydrated] = useState(false);
+
+  useEffect(() => {
+    setHasHydrated(true);
+  }, []);
+
+  const colorScheme = useRNColorScheme();
+
+  if (hasHydrated) {
+    return colorScheme;
+  }
+
+  return 'light';
+}

code/app/app-rn4/example/src/hooks/use-theme.ts

@@ -0,0 +1,14 @@
+/**
+ * Learn more about light and dark modes:
+ * https://docs.expo.dev/guides/color-schemes/
+ */
+
+import { Colors } from '@/constants/theme';
+import { useColorScheme } from '@/hooks/use-color-scheme';
+
+export function useTheme() {
+  const scheme = useColorScheme();
+  const theme = scheme === 'unspecified' ? 'light' : scheme;
+
+  return Colors[theme];
+}

code/app/app-rn4/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "app-rn4",
+  "main": "expo-router/entry",
+  "version": "1.0.0",
+  "scripts": {
+    "start": "expo start",
+    "reset-project": "node ./scripts/reset-project.js",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
+    "web": "expo start --web",
+    "lint": "expo lint"
+  },
+  "dependencies": {
+    "@react-navigation/bottom-tabs": "^7.15.5",
+    "@react-navigation/elements": "^2.9.10",
+    "@react-navigation/native": "^7.1.33",
+    "expo": "~55.0.12",
+    "expo-blur": "~55.0.13",
+    "expo-constants": "~55.0.12",
+    "expo-device": "~55.0.13",
+    "expo-font": "~55.0.6",
+    "expo-glass-effect": "~55.0.10",
+    "expo-image": "~55.0.8",
+    "expo-linear-gradient": "~55.0.12",
+    "expo-linking": "~55.0.11",
+    "expo-router": "~55.0.11",
+    "expo-splash-screen": "~55.0.16",
+    "expo-status-bar": "~55.0.5",
+    "expo-symbols": "~55.0.7",
+    "expo-system-ui": "~55.0.14",
+    "expo-web-browser": "~55.0.13",
+    "react": "19.2.0",
+    "react-dom": "19.2.0",
+    "react-native": "0.83.4",
+    "react-native-gesture-handler": "~2.30.0",
+    "react-native-reanimated": "4.2.1",
+    "react-native-safe-area-context": "~5.6.2",
+    "react-native-screens": "~4.23.0",
+    "react-native-web": "~0.21.0",
+    "react-native-worklets": "0.7.2"
+  },
+  "devDependencies": {
+    "@types/react": "~19.2.2",
+    "typescript": "~5.9.2"
+  },
+  "private": true
+}

code/app/app-rn4/pnpm-workspace.yaml

@@ -0,0 +1 @@
+nodeLinker: hoisted

code/app/app-rn4/src/app/_layout.tsx

@@ -0,0 +1,5 @@
+import { Stack } from "expo-router";
+
+export default function RootLayout() {
+  return <Stack />;
+}

code/app/app-rn4/src/app/index.tsx

@@ -0,0 +1,318 @@
+import { Feather, Ionicons } from '@expo/vector-icons';
+import { BlurView } from "expo-blur";
+import React, { useState } from "react";
+import {
+  Platform,
+  ScrollView,
+  StyleSheet,
+  Text,
+  TouchableOpacity,
+  View,
+} from "react-native";
+
+export default function QQStyleTabBar() {
+  const [activeTab, setActiveTab] = useState("消息");
+  const [unreadCount] = useState(12);
+  const [hasNewMoment] = useState(true);
+
+  const tabs = [
+    { id: "消息", label: "消息", icon: "chatbubble" },
+    { id: "频道", label: "频道", icon: "people" },
+    { id: "联系人", label: "联系人", icon: "person" },
+    { id: "动态", label: "动态", icon: "refresh-cw" },
+  ];
+
+  return (
+    <View style={styles.container}>
+      {/* 模拟聊天列表 - 作为模糊背景 */}
+      <ScrollView
+        contentContainerStyle={{ paddingTop: 40, paddingBottom: 100 }}
+        showsVerticalScrollIndicator={false}
+      >
+        {Array.from({ length: 20 }).map((_, i) => {
+          const isMe = i % 2 === 0;
+          const messageType = i % 3;
+
+          return (
+            <View
+              key={i}
+              style={[
+                styles.messageRow,
+                isMe ? styles.right : styles.left,
+              ]}
+            >
+              <View style={styles.avatarContainer}>
+                <View style={styles.avatar} />
+              </View>
+
+              <View
+                style={[
+                  styles.bubble,
+                  isMe ? styles.myBubble : styles.otherBubble,
+                ]}
+              >
+                <Text style={[
+                  styles.msgText,
+                  isMe && styles.myMsgText
+                ]}>
+                  {isMe
+                    ? `我发的消息 ${i + 1}`
+                    : messageType === 0
+                      ? `你好，最近怎么样？ ${i + 1}`
+                      : messageType === 1
+                        ? `今晚有空吗？一起吃个饭？ ${i + 1}`
+                        : `上次说的那个项目有进展了 ${i + 1}`}
+                </Text>
+                <Text style={styles.timeText}>昨天 14:3{i}</Text>
+              </View>
+            </View>
+          );
+        })}
+      </ScrollView>
+
+      {/* TabBar - 使用expo-blur实现毛玻璃效果 */}
+      <View style={styles.tabBarContainer}>
+        <BlurView
+          intensity={80} // 稍微降低强度，让白色更明显
+          tint="light"
+          style={StyleSheet.absoluteFill}
+        />
+
+        {/* 磨砂白色层 - 调整透明度 */}
+        <View style={styles.whiteOverlay} />
+
+        {/* TabBar内容 */}
+        <View style={styles.tabs}>
+          {tabs.map((tab) => {
+            const isActive = activeTab === tab.id;
+            const isMessageTab = tab.id === "消息";
+            const isMomentTab = tab.id === "动态";
+
+            return (
+              <TouchableOpacity
+                key={tab.id}
+                style={styles.tabItem}
+                onPress={() => setActiveTab(tab.id)}
+                activeOpacity={0.7}
+              >
+                <View style={styles.iconContainer}>
+                  {isMessageTab || tab.id === "联系人" || tab.id === "频道" ? (
+                    isActive ? (
+                      <Ionicons
+                        name={tab.icon}
+                        size={24}
+                        color="#0066FF"
+                      />
+                    ) : (
+                      <Ionicons
+                        name={`${tab.icon}-outline`}
+                        size={24}
+                        color="#000000"
+                      />
+                    )
+                  ) : (
+                    <Feather
+                      name={tab.icon}
+                      size={24}
+                      color={isActive ? "#0066FF" : "#000000"}
+                    />
+                  )}
+
+                  {/* 消息角标 */}
+                  {isMessageTab && unreadCount > 0 && (
+                    <View style={styles.badge}>
+                      <Text style={styles.badgeText}>
+                        {unreadCount > 99 ? "99+" : unreadCount}
+                      </Text>
+                    </View>
+                  )}
+
+                  {/* 动态红点角标 */}
+                  {isMomentTab && hasNewMoment && !isActive && (
+                    <View style={styles.dotBadge} />
+                  )}
+                </View>
+
+                <Text
+                  style={[
+                    styles.tabLabel,
+                    isActive && styles.tabLabelActive
+                  ]}
+                >
+                  {tab.label}
+                </Text>
+              </TouchableOpacity>
+            );
+          })}
+        </View>
+
+        {/* 顶部细线 */}
+        <View style={styles.topBorder} />
+      </View>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: "#EFEFF4", // 与QQ类似的浅灰色背景
+  },
+
+  // 聊天布局
+  messageRow: {
+    paddingHorizontal: 12,
+    marginVertical: 8,
+    flexDirection: "row",
+    alignItems: "flex-end",
+  },
+
+  left: {
+    justifyContent: "flex-start",
+  },
+
+  right: {
+    justifyContent: "flex-end",
+  },
+
+  avatarContainer: {
+    width: 40,
+    height: 40,
+    borderRadius: 6,
+    marginRight: 10,
+    backgroundColor: "#E0E0E0",
+    justifyContent: "center",
+    alignItems: "center",
+  },
+
+  avatar: {
+    width: 36,
+    height: 36,
+    borderRadius: 4,
+    backgroundColor: "#C0C0C0",
+  },
+
+  bubble: {
+    maxWidth: "70%",
+    paddingVertical: 10,
+    paddingHorizontal: 12,
+    borderRadius: 8,
+  },
+
+  myBubble: {
+    backgroundColor: "#4EA0FF",
+    borderTopRightRadius: 0,
+  },
+
+  otherBubble: {
+    backgroundColor: "#FFFFFF",
+    borderTopLeftRadius: 0,
+  },
+
+  msgText: {
+    color: "#333333",
+    fontSize: 16,
+  },
+
+  myMsgText: {
+    color: "#FFFFFF",
+  },
+
+  timeText: {
+    fontSize: 12,
+    color: "#999999",
+    marginTop: 4,
+    alignSelf: "flex-end",
+  },
+
+  // TabBar样式
+  tabBarContainer: {
+    position: "absolute",
+    left: 0,
+    right: 0,
+    bottom: 0,
+    height: Platform.OS === "ios" ? 85 : 60,
+    overflow: "hidden",
+  },
+
+  whiteOverlay: {
+    ...StyleSheet.absoluteFillObject,
+    // 关键参数调整：稍微增加不透明度，让白色更明显
+    backgroundColor: "rgba(249, 249, 249, 0.95)",
+  },
+
+  topBorder: {
+    position: "absolute",
+    top: 0,
+    left: 0,
+    right: 0,
+    height: 0.5,
+    backgroundColor: "rgba(0, 0, 0, 0.1)", // 顶部细线
+  },
+
+  tabs: {
+    flex: 1,
+    flexDirection: "row",
+    alignItems: "center",
+    justifyContent: "space-around",
+    paddingBottom: Platform.OS === "ios" ? 20 : 0,
+  },
+
+  tabItem: {
+    flex: 1,
+    justifyContent: "center",
+    alignItems: "center",
+  },
+
+  iconContainer: {
+    width: 24,
+    height: 24,
+    justifyContent: "center",
+    alignItems: "center",
+    marginBottom: 4,
+    position: "relative",
+  },
+
+  tabLabel: {
+    fontSize: 10,
+    color: "#000000",
+    fontWeight: "500",
+  },
+
+  tabLabelActive: {
+    color: "#0066FF",
+  },
+
+  badge: {
+    position: "absolute",
+    top: -6,
+    right: -12,
+    minWidth: 18,
+    height: 18,
+    borderRadius: 9,
+    backgroundColor: "#FF3B30",
+    justifyContent: "center",
+    alignItems: "center",
+    paddingHorizontal: 4,
+    borderWidth: 2,
+    borderColor: "#FAFAFA", // 与TabBar背景色保持一致
+  },
+
+  badgeText: {
+    color: "#FFFFFF",
+    fontSize: 10,
+    fontWeight: "bold",
+  },
+
+  dotBadge: {
+    position: "absolute",
+    top: -4,
+    right: -6,
+    width: 8,
+    height: 8,
+    borderRadius: 4,
+    backgroundColor: "#FF3B30",
+    borderWidth: 1.5,
+    borderColor: "#FAFAFA", // 与TabBar背景色保持一致
+  },
+});

code/app/app-rn4/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "extends": "expo/tsconfig.base",
+  "compilerOptions": {
+    "strict": true,
+    "paths": {
+      "@/*": [
+        "./src/*"
+      ],
+      "@/assets/*": [
+        "./assets/*"
+      ]
+    }
+  },
+  "include": [
+    "**/*.ts",
+    "**/*.tsx",
+    ".expo/types/**/*.ts",
+    "expo-env.d.ts"
+  ]
+}