Reference version

This is documentation for the next SDK version. For up-to-date documentation, see the latest version (SDK 54).

Picker

A SwiftUI Picker component for selecting options from a list.

iOS
tvOS

Expo UI Picker matches the official SwiftUI Picker API and supports all picker styles via the pickerStyle modifier.

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.

Segmented picker

SegmentedPickerExample.tsx
import { useState } from 'react'; import { Host, Picker, Text } from '@expo/ui/swift-ui'; import { pickerStyle, tag } from '@expo/ui/swift-ui/modifiers'; const options = ['Apple', 'Banana', 'Orange']; export default function SegmentedPickerExample() { const [selectedTag, setSelectedTag] = useState(options[0]); return ( <Host matchContents> <Picker modifiers={[pickerStyle('segmented')]} label="Select a fruit" selection={selectedTag} onSelectionChange={selection => { setSelectedTag(selection); }}> {options.map(option => ( <Text key={option} modifiers={[tag(option)]}> {option} </Text> ))} </Picker> </Host> ); }
MenuPickerExample.tsx
import { useState } from 'react'; import { Host, Picker, Text } from '@expo/ui/swift-ui'; import { pickerStyle, tag } from '@expo/ui/swift-ui/modifiers'; const options = ['Apple', 'Banana', 'Orange']; export default function MenuPickerExample() { const [selectedTag, setSelectedTag] = useState(options[0]); return ( <Host matchContents> <Picker modifiers={[pickerStyle('menu')]} label="Select a fruit" selection={selectedTag} onSelectionChange={selection => { setSelectedTag(selection); }}> {options.map(option => ( <Text key={option} modifiers={[tag(option)]}> {option} </Text> ))} </Picker> </Host> ); }

Wheel picker

The wheel variant is not available on Apple TV.
WheelPickerExample.tsx
import { useState } from 'react'; import { Host, Picker, Text } from '@expo/ui/swift-ui'; import { pickerStyle, tag } from '@expo/ui/swift-ui/modifiers'; const options = ['Apple', 'Banana', 'Orange']; export default function WheelPickerExample() { const [selectedTag, setSelectedTag] = useState(options[0]); return ( <Host matchContents> <Picker modifiers={[pickerStyle('wheel')]} label="Select a fruit" selection={selectedTag} onSelectionChange={selection => { setSelectedTag(selection); }}> {options.map(option => ( <Text key={option} modifiers={[tag(option)]}> {option} </Text> ))} </Picker> </Host> ); }

API

Component

Picker

iOS
tvOS

Type: React.Element<PickerProps<T>>

Displays a native picker component

Example

<Picker modifiers={[pickerStyle('segmented')]}> <Text modifiers={[tag('option1')]}>Option 1</Text> <Text modifiers={[tag(0)]}>Option 3</Text> </Picker>

PickerProps

children

iOS
tvOS
Optional • Type: React.ReactNode

The content of the picker. You can use Text components with tag modifiers to display the options.

label

iOS
tvOS
Optional • Literal type: union

A label displayed on the picker.

Acceptable values are: string | React.ReactNode

onSelectionChange

iOS
tvOS
Optional • Type: (selection: T) => void

Callback function that is called when an option is selected. Gets called with the selected tag value.

selection

iOS
tvOS
Optional • Type: T

The selected option's tag modifier value.

systemImage

iOS
tvOS
Optional • Type: SFSymbol

The name of the system image (SF Symbol). For example: 'photo', 'heart.fill', 'star.circle'