Reference version

Box

A Jetpack Compose Box component for stacking child elements.

Android
Included in Expo Go
Bundled version:
~57.0.1

Expo UI Box matches the official Jetpack Compose Box API and stacks children on top of each other with configurable content alignment.

Material 3 Box with text content centered inside

Installation

Terminal
npx expo install @expo/ui

If you are installing this in an existing React Native app, make sure to install expo in your project.

Usage

Box stacks children on top of each other. Use contentAlignment to position them within the box.

BoxExample.tsx
import { Host, Box, Text } from '@expo/ui/jetpack-compose'; import { size, background } from '@expo/ui/jetpack-compose/modifiers'; export default function BoxExample() { return ( <Host matchContents> <Box contentAlignment="center" modifiers={[size(200, 200), background('#E0E0E0')]}> <Text>Centered in Box</Text> </Box> </Host> ); }

API

import { Box } from '@expo/ui/jetpack-compose';

Component

Box

Type: React.Element<BoxProps>

BoxProps

children

Optional • Type: ReactNode

contentAlignment

Optional • Type: ContentAlignment

Alignment of children within the box.

floatingToolbarExitAlwaysScrollBehavior

Optional • Type: FloatingToolbarExitAlwaysScrollBehavior

Scroll behavior for the floating toolbar exit.

Inherited Props

  • PrimitiveBaseProps