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Build Expo app for development
Mit Codex oder Claude installieren Kopieren Sie diesen Prompt, fügen Sie ihn in Codex, Claude oder einen anderen Assistant ein und lassen Sie die Skill-Seite prüfen und installieren.
Use when implementing or debugging ANY network request, API call, or data fetching. Covers fetch API, React Query, SWR, error handling, caching, offline support, and Expo Router data loaders (`useLoaderData`).
Complete guide for building beautiful apps with Expo Router. Covers fundamentals, styling, components, navigation, animations, patterns, and native tabs.
Build native UI with the @expo/ui package: real SwiftUI on iOS and Jetpack Compose on Android rendered from React in an Expo or React Native app. Covers universal cross-platform components (Host, Column, Row, Button, Text, List, and more imported from @expo/ui), drop-in replacements for popular React Native community libraries (BottomSheet, DateTimePicker, Slider, Menu, etc.), and platform-specific SwiftUI (@expo/ui/swift-ui, iOS only) and Jetpack Compose (@expo/ui/jetpack-compose, Android only) trees and modifiers. Use when adding or reviewing @expo/ui Host/RNHostView trees, building native-feeling UI where standard React Native components fall short (grouped settings forms with toggles, sections, menus, sheets, pickers, sliders), choosing between universal and platform-specific components, or replacing an RN community UI library with a native @expo/ui equivalent. Not for custom native modules, Expo Router navigation, Reanimated, or data fetching.
Evaluate Expo skills in this repo end-to-end - trigger accuracy, generated code quality, and runtime screenshots on iOS simulator and Android emulator via Expo Go (web optional). Use when the user wants to eval an Expo skill, test that a skill produces working code, benchmark a skill with device screenshots, or verify a skill's output renders correctly.
Deploy Expo apps to production with EAS — build and submit to the iOS App Store, Google Play Store, and TestFlight, configure eas.json build and submit profiles, manage app versions and build numbers, publish App Store metadata and ASO, and deploy web bundles and API routes via EAS Hosting. Use whenever the user is preparing a production build, running eas build or eas submit, shipping to TestFlight, releasing or rolling out to the app stores, bumping version or build numbers, or setting up store listing metadata for an Expo app.
Expo's official example projects — the expo/examples repo of ~70 `with-*` integrations (Stripe, Clerk, Supabase, OpenAI, maps, Reanimated, SQLite, Skia, NativeWind, and more). Use when integrating a third-party library or service into an existing Expo app and you want the canonical, version-matched pattern to adapt, or when scaffolding a new project from one with `npx create-expo --example`.
| name | expo-dev-client |
| description | Build Expo app for development |
| version | 1.1.0 |
| license | MIT |
Use EAS Build to create development clients for testing native code changes on physical devices. Use this for creating custom Expo Go clients for testing branches of your app.
Development clients are the recommended setup for any real or production app. Expo Go is a playground for learning and quick experiments with the native libraries it bundles; most apps outgrow it and move to a development client. See Expo Go vs. development builds for the full reasoning.
You need a dev client ONLY when using:
Ensure eas.json has a development profile:
{
"cli": {
"version": ">= 16.0.1",
"appVersionSource": "remote"
},
"build": {
"production": {
"autoIncrement": true
},
"development": {
"autoIncrement": true,
"developmentClient": true
}
},
"submit": {
"production": {},
"development": {}
}
}
Key settings:
developmentClient: true - Bundles expo-dev-client for development buildsautoIncrement: true - Automatically increments build numbersappVersionSource: "remote" - Uses EAS as the source of truth for version numbersBuild iOS dev client and submit to TestFlight in one command:
eas build -p ios --profile development --submit
This will:
After receiving the TestFlight email:
Build a development client on your machine:
# iOS (requires Xcode)
eas build -p ios --profile development --local
# Android
eas build -p android --profile development --local
Local builds output:
.ipa file.apk or .aab fileInstall iOS build on simulator:
# Find the .app in the .tar.gz output
tar -xzf build-*.tar.gz
xcrun simctl install booted ./path/to/App.app
Install iOS build on device (requires signing):
# Use Xcode Devices window or ideviceinstaller
ideviceinstaller -i build.ipa
Install Android build:
adb install build.apk
# iOS only
eas build -p ios --profile development
# Android only
eas build -p android --profile development
# Both platforms
eas build --profile development
# List recent builds
eas build:list
# View build details
eas build:view
Once installed, the dev client provides:
Connect to local development:
# Start Metro bundler
npx expo start --dev-client
# Scan QR code with dev client or enter URL manually
Build fails with signing errors:
eas credentials
Clear build cache:
eas build -p ios --profile development --clear-cache
Check EAS CLI version:
eas --version
eas update