Build Expo apps for TV
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A guide for building an Expo app for an Android TV or Apple TV target.
TV development is available only in SDK 50 and above. Not all Expo features and SDK libraries are available on TV. For more details, check the See which libraries are supported.
React Native is supported on Android TV and Apple TV through the React Native TV project. This technology extends beyond TV, offering a comprehensive core repo fork with support for phone and TV targets, including Hermes and Fabric.
Using the React Native TV library as the react-native
dependency in an Expo project, it becomes capable of targeting both mobile (Android, iOS) and TV (Android TV, Apple TV) devices.
Prerequisites
The necessary changes to the native Android and iOS files are minimal and can be automated with a config plugin if you use prebuild. Below is a list of changes made by the config plugins, which you can alternatively apply manually:
Android
- AndroidManifest.xml is modified:
- The default phone portrait orientation is removed
- The required intent for TV apps is added
- MainApplication.kt is modified to remove unsupported Flipper invocations
iOS
- ios/Podfile is modified to target tvOS instead of iOS
- The Xcode project is modified to target tvOS instead of iOS
- The splash screen (SplashScreen.storyboard) is modified to work on tvOS
System requirements for TV development
Android TV
- Node.js (LTS) on macOS or Linux.
- Android Studio (Iguana or later).
- In the Android Studio SDK manager, select the dropdown for the Android SDK you are using (API version 31 or later), and make sure an Android TV system image is selected for installation. (For Apple silicon, choose the ARM 64 image. Otherwise, choose the Intel x86_64 image).
- After installing the Android TV system image, create an Android TV emulator using that image (the process is the same as creating an Android phone emulator).
Apple TV
- Node.js (LTS) on macOS.
- Xcode 15 or later.
- tvOS SDK 17 or later. (This is not installed automatically with Xcode. You can install it later with
xcodebuild -downloadAllPlatforms
).
Quick start
The fastest way to generate a new project is described in the TV example within the Expo examples repository:
-
npx create-expo-app MyTVProject -e with-tv
For SDK 51 and later, you can start with the TV Router example:
-
npx create-expo-app MyTVProject -e with-router-tv
This creates a new project that uses Expo Router for file-based navigation, modeled after the create-expo-app default template.
See which libraries are supported
At this time, TV applications work with the following libraries and APIs listed below:
- AppleAuthentication
- Application
- Audio
- Asset
- AsyncStorage
- AV
- BlurView
- BuildProperties
- Constants
- Crypto
- Device
- FileSystem
- FlashList
- Font
- Image
- KeepAwake
- LinearGradient
- Localization
- Manifests
- NetInfo
- Reanimated
- SafeAreaContext
- SplashScreen
- Svg
- Updates
- Video
TV also works with react-navigation
, react-native-video
, and many other commonly used third-party React Native libraries. See React Native directory to learn more about supported third-party libraries.
Limitations
- The Expo DevClient library is not supported at this time.
- The Expo Router library is only supported in SDK 51 and later.
Integration with an existing Expo project
The following walkthrough describes the steps required to modify an Expo project for TV.
1
Modify dependencies for TV
In package.json, modify the react-native
dependency to use the TV repo, and exclude this dependency from npx expo install
version validation.
{
%%placeholder-start%%... %%placeholder-end%%
"dependencies": {
%%placeholder-start%%... %%placeholder-end%%
"react-native": "npm:react-native-tvos",
%%placeholder-start%%... %%placeholder-end%%
},
"expo": {
"install": {
"exclude": [
"react-native"
]
}
}
}
2
Add the TV config plugin
-
npx expo install @react-native-tvos/config-tv -- --dev
When installed, the plugin will modify the project for TV when either:
- The environment variable
EXPO_TV
is set to1
- The plugin parameter
isTV
is set totrue
Verify that this plugin appears in app.json:
{
"plugins": ["@react-native-tvos/config-tv"]
}
To see additional information on the plugin's actions during prebuild, you can set debug environment variables before running prebuild. (See also our documentation on Expo CLI environment variables.)
# See all Expo CLI and config plugin debug information
-
export DEBUG=expo:*
# See only debug information for the TV plugin
-
export DEBUG=expo:react-native-tvos:config-tv
3
4
5
6
7
Create EAS Build profiles for both TV and phone
Since the TV build can be driven by the value of an environment variable, it is easy to set up EAS Build profiles that build from the same source but target TV instead of phone.
The following example eas.json shows how to extend existing profiles (development
and preview
) to create TV profiles (development_tv
and preview_tv
).
{
"cli": {
"version": ">= 5.2.0"
},
"build": {
"base": {
"distribution": "internal",
"ios": {
"simulator": true
},
"android": {
"buildType": "apk",
"withoutCredentials": true
},
"channel": "base"
},
"development": {
"extends": "base",
"android": {
"gradleCommand": ":app:assembleDebug"
},
"ios": {
"buildConfiguration": "Debug"
},
"channel": "development"
},
"development_tv": {
"extends": "development",
"env": {
"EXPO_TV": "1"
},
"channel": "development"
},
"preview": {
"extends": "base",
"channel": "preview"
},
"preview_tv": {
"extends": "preview",
"env": {
"EXPO_TV": "1"
},
"channel": "preview"
}
},
"submit": {}
}
More
A complete example is available on GitHub.