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examples/common_expo/.eslintrc.js

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+// https://docs.expo.dev/guides/using-eslint/
+module.exports = {
+  extends: ['expo', 'prettier'],
+  plugins: ['prettier', 'jest'],
+  rules: {
+    'prettier/prettier': 'error',
+  },
+  env: {
+    'jest/globals': true,
+  },
+};

examples/common_expo/.gitignore

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+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+
+# Native
+*.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
+
+# expo-cli
+expo-env.d.ts

examples/common_expo/.npmrc

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+node-linker=hoisted

examples/common_expo/.prettierrc

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+{
+  "singleQuote": true,
+  "trailingComma": "all"
+}

examples/common_expo/README.md

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+# Common Expo
+
+## Setup Mobile App
+
+1. **Install the project dependencies:**
+
+To install the necessary dependencies for your project, run the following command:
+
+`pnpm install`
+
+2. **Start the development server:**
+
+Once the dependencies are installed, you can start project using the command:
+
+`pnpm start`

examples/common_expo/app.json

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+{
+  "expo": {
+    "name": "common_expo",
+    "slug": "common_expo",
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "icon": "./assets/images/icon.png",
+    "scheme": "myapp",
+    "userInterfaceStyle": "automatic",
+    "splash": {
+      "image": "./assets/images/splash.png",
+      "resizeMode": "contain",
+      "backgroundColor": "#ffffff"
+    },
+    "ios": {
+      "supportsTablet": true,
+      "config": {
+        "usesNonExemptEncryption": false
+      }
+    },
+    "android": {
+      "adaptiveIcon": {
+        "foregroundImage": "./assets/images/adaptive-icon.png",
+        "backgroundColor": "#ffffff"
+      }
+    },
+    "web": {
+      "bundler": "metro",
+      "output": "static",
+      "favicon": "./assets/images/favicon.png"
+    },
+    "plugins": [
+      "expo-router",
+      "expo-secure-store"
+    ],
+    "experiments": {
+      "typedRoutes": true
+    }
+  }
+}

examples/common_expo/app/(app)/(tabs)/_layout.tsx

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+import { ComponentProps } from 'react';
+import FontAwesome from '@expo/vector-icons/FontAwesome';
+import { Tabs } from 'expo-router';
+
+import Colors from '@/constants/theme/Colors';
+import { useColorScheme } from '@/hooks/useColorScheme';
+
+type TabLayoutProps = {
+  name: ComponentProps<typeof FontAwesome>['name'];
+  color: string;
+};
+
+// You can explore the built-in icon families and icons on the web at https://icons.expo.fyi/
+function TabBarIcon(props: TabLayoutProps) {
+  return <FontAwesome size={28} style={{ marginBottom: -3 }} {...props} />;
+}
+
+export default function TabLayout() {
+  const colorScheme = useColorScheme();
+
+  return (
+    <Tabs
+      screenOptions={{
+        tabBarActiveTintColor: Colors[colorScheme ?? 'light'].tint,
+        // Disable the static render of the header on web
+        // to prevent a hydration error in React Navigation v6.
+        headerShown: false,
+      }}
+    >
+      <Tabs.Screen
+        name="index"
+        options={{
+          title: 'Home',
+          tabBarIcon: ({ color }) => <TabBarIcon name="home" color={color} />,
+        }}
+      />
+      <Tabs.Screen
+        name="profile"
+        options={{
+          title: 'Profile',
+          tabBarIcon: ({ color }) => <TabBarIcon name="user" color={color} />,
+        }}
+      />
+    </Tabs>
+  );
+}

examples/common_expo/app/(app)/(tabs)/index.tsx

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+import { CenterView } from '@/components/CenterView';
+import { Typography } from '@/components/Typography';
+
+export default function HomeScreen() {
+  return (
+    <CenterView>
+      <Typography.Header>Home screen</Typography.Header>
+    </CenterView>
+  );
+}

examples/common_expo/app/(app)/(tabs)/profile.tsx

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+import { CenterView } from '@/components/CenterView';
+import { Typography } from '@/components/Typography';
+
+export default function Profile() {
+  return (
+    <CenterView>
+      <Typography.Header>Profile screen</Typography.Header>
+    </CenterView>
+  );
+}

examples/common_expo/app/(app)/_layout.tsx

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+import { ActivityIndicator, TouchableOpacity } from 'react-native';
+import { Redirect, Stack } from 'expo-router';
+import { useAuth } from '@/providers/AuthProvider';
+import { Typography } from '@/components/Typography';
+import { CenterView } from '@/components/CenterView';
+
+export default function AppLayout() {
+  const { session, isLoading, signOut } = useAuth();
+
+  if (isLoading) {
+    return (
+      <CenterView>
+        <ActivityIndicator size="large" />
+      </CenterView>
+    );
+  }
+
+  if (!session) {
+    return <Redirect href="/sign-in" />;
+  }
+
+  return (
+    <Stack
+      screenOptions={{
+        headerRight: () => (
+          <TouchableOpacity onPress={signOut}>
+            <Typography.Text>Logout</Typography.Text>
+          </TouchableOpacity>
+        ),
+      }}
+    />
+  );
+}

examples/common_expo/app/+html.tsx

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+import { ScrollViewStyleReset } from 'expo-router/html';
+import { PropsWithChildren } from 'react';
+
+// This file is web-only and used to configure the root HTML for every
+// web page during static rendering.
+// The contents of this function only run in Node.js environments and
+// do not have access to the DOM or browser APIs.
+export default function Root({ children }: PropsWithChildren) {
+  return (
+    <html lang="en">
+      <head>
+        <meta charSet="utf-8" />
+        <meta httpEquiv="X-UA-Compatible" content="IE=edge" />
+        <meta
+          name="viewport"
+          content="width=device-width, initial-scale=1, shrink-to-fit=no"
+        />
+
+        {/* 
+          Disable body scrolling on web. This makes ScrollView components work closer to how they do on native. 
+          However, body scrolling is often nice to have for mobile web. If you want to enable it, remove this line.
+        */}
+        <ScrollViewStyleReset />
+
+        {/* Using raw CSS styles as an escape-hatch to ensure the background color never flickers in dark-mode. */}
+        <style dangerouslySetInnerHTML={{ __html: responsiveBackground }} />
+        {/* Add any additional <head> elements that you want globally available on web... */}
+      </head>
+      <body>{children}</body>
+    </html>
+  );
+}
+
+const responsiveBackground = `
+body {
+  background-color: #fff;
+}
+@media (prefers-color-scheme: dark) {
+  body {
+    background-color: #000;
+  }
+}`;

examples/common_expo/app/+not-found.tsx

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+import { Link, Stack } from 'expo-router';
+import { StyleSheet } from 'react-native';
+
+import { Text, View } from '@/components/Themed';
+
+export default function NotFoundScreen() {
+  return (
+    <>
+      <Stack.Screen options={{ title: 'Oops!' }} />
+      <View style={styles.container}>
+        <Text style={styles.title}>This screen doesn't exist.</Text>
+
+        <Link href="/" style={styles.link}>
+          <Text style={styles.linkText}>Go to home screen!</Text>
+        </Link>
+      </View>
+    </>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    alignItems: 'center',
+    justifyContent: 'center',
+    padding: 20,
+  },
+  title: {
+    fontSize: 20,
+    fontWeight: 'bold',
+  },
+  link: {
+    marginTop: 15,
+    paddingVertical: 15,
+  },
+  linkText: {
+    fontSize: 14,
+    color: '#2e78b7',
+  },
+});

examples/common_expo/app/_layout.tsx

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+import FontAwesome from '@expo/vector-icons/FontAwesome';
+import {
+  DarkTheme,
+  DefaultTheme,
+  ThemeProvider,
+} from '@react-navigation/native';
+import { useFonts } from 'expo-font';
+import { Slot } from 'expo-router';
+import * as SplashScreen from 'expo-splash-screen';
+import { useEffect } from 'react';
+import 'react-native-reanimated';
+
+import { useColorScheme } from '@/hooks/useColorScheme';
+import { AuthProvider } from '@/providers/AuthProvider';
+
+export {
+  // Catch any errors thrown by the Layout component.
+  ErrorBoundary,
+} from 'expo-router';
+
+export const unstable_settings = {
+  // Ensure that reloading on `/modal` keeps a back button present.
+  initialRouteName: '(tabs)',
+};
+
+// Prevent the splash screen from auto-hiding before asset loading is complete.
+SplashScreen.preventAutoHideAsync();
+
+export default function RootLayout() {
+  const [loaded, error] = useFonts({
+    SpaceMono: require('../assets/fonts/SpaceMono-Regular.ttf'),
+    ...FontAwesome.font,
+  });
+
+  // Expo Router uses Error Boundaries to catch errors in the navigation tree.
+  useEffect(() => {
+    if (error) throw error;
+  }, [error]);
+
+  useEffect(() => {
+    if (loaded) {
+      SplashScreen.hideAsync();
+    }
+  }, [loaded]);
+
+  if (!loaded) {
+    return null;
+  }
+
+  return <RootLayoutNav />;
+}
+
+function RootLayoutNav() {
+  const colorScheme = useColorScheme();
+
+  return (
+    <ThemeProvider value={colorScheme === 'dark' ? DarkTheme : DefaultTheme}>
+      <AuthProvider>
+        <Slot />
+      </AuthProvider>
+    </ThemeProvider>
+  );
+}