Reference version

This is documentation for the next SDK version. For up-to-date documentation, see the latest version (SDK 55).

TextField

A SwiftUI TextField component for text input.

iOS
tvOS

For the complete documentation index, see llms.txt. Use this file to discover all available pages.

Expo UI TextField matches the official SwiftUI TextField API and supports single-line and multiline input, keyboard configuration, submit handling, and an imperative ref for programmatic control.

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

Basic text field

BasicTextFieldExample.tsx
import { useState } from 'react'; import { Host, TextField } from '@expo/ui/swift-ui'; export default function BasicTextFieldExample() { const [value, setValue] = useState(''); return ( <Host matchContents> <TextField placeholder="Username" onValueChange={setValue} /> </Host> ); }

Multiline text field

Set axis="vertical" to allow the text field to expand vertically. Use the lineLimit modifier to control the visible line count. When using Host matchContents, add fixedSize({ horizontal: false, vertical: true }) so the text field accepts the parent's width while using its ideal height.

MultilineTextFieldExample.tsx
import { useState } from 'react'; import { Host, TextField } from '@expo/ui/swift-ui'; import { lineLimit, fixedSize } from '@expo/ui/swift-ui/modifiers'; export default function MultilineTextFieldExample() { const [value, setValue] = useState(''); return ( <Host matchContents> <TextField axis="vertical" placeholder="Tell us about yourself..." onValueChange={setValue} modifiers={[lineLimit(5), fixedSize({ horizontal: false, vertical: true })]} /> </Host> ); }

Keyboard type

Use the keyboardType modifier to display a specific keyboard layout.

KeyboardTypeExample.tsx
import { useState } from 'react'; import { Host, TextField } from '@expo/ui/swift-ui'; import { keyboardType, autocorrectionDisabled } from '@expo/ui/swift-ui/modifiers'; export default function KeyboardTypeExample() { const [value, setValue] = useState(''); return ( <Host matchContents> <TextField placeholder="Email" onValueChange={setValue} modifiers={[keyboardType('email-address'), autocorrectionDisabled()]} /> </Host> ); }

Submit handling

Use the submitLabel modifier to customize the return key and onSubmit to handle the submit action.

SubmitHandlingExample.tsx
import { useState } from 'react'; import { Host, TextField } from '@expo/ui/swift-ui'; import { submitLabel, onSubmit } from '@expo/ui/swift-ui/modifiers'; export default function SubmitHandlingExample() { const [value, setValue] = useState(''); return ( <Host matchContents> <TextField placeholder="Search..." onValueChange={setValue} modifiers={[submitLabel('search'), onSubmit(() => console.log('Submitted:', value))]} /> </Host> ); }

Imperative ref

Use a ref to imperatively set text, focus, blur, or select text.

ImperativeRefExample.tsx
import { useRef } from 'react'; import { Host, TextField, TextFieldRef, Button, HStack, VStack } from '@expo/ui/swift-ui'; import { buttonStyle } from '@expo/ui/swift-ui/modifiers'; export default function ImperativeRefExample() { const ref = useRef<TextFieldRef>(null); return ( <Host matchContents> <VStack> <TextField ref={ref} defaultValue="Select me!" placeholder="Imperative field" /> <HStack spacing={12}> <Button modifiers={[buttonStyle('bordered')]} onPress={() => ref.current?.focus()} label="Focus" /> <Button modifiers={[buttonStyle('bordered')]} onPress={() => ref.current?.blur()} label="Blur" /> <Button modifiers={[buttonStyle('bordered')]} onPress={() => ref.current?.setText('SwiftUI rocks!')} label="Set Text" /> <Button modifiers={[buttonStyle('bordered')]} onPress={() => ref.current?.setSelection(0, 7)} label="Select" /> </HStack> </VStack> </Host> ); }

API

import { TextField } from '@expo/ui/swift-ui';

Component

TextField

iOS
tvOS

Type: React.Element<TextFieldProps>

Renders a SwiftUI TextField.

TextFieldProps

autoFocus

iOS
tvOS
Optional • Type: boolean • Default: false

If true, the text field will be focused automatically when mounted.

axis

iOS
tvOS
Optional • Literal type: string • Default: 'horizontal'

The axis along which the text field grows when content exceeds a single line.

  • 'horizontal' — single line (default).
  • 'vertical' — expands vertically for multiline content. Use lineLimit modifier to cap visible lines.

Acceptable values are: 'horizontal' | 'vertical'

onFocusChange

iOS
tvOS
Optional • Type: (focused: boolean) => void

A callback triggered when the field gains or loses focus.

onSelectionChange

iOS 18.0+ tvos 18.0+
Optional • Type: ({ start, end }: { end: number, start: number }) => void

A callback triggered when user selects text in the TextField.

onTextChange

iOS
tvOS
Optional • Type: (text: string) => void

A callback triggered when the text value changes.

If the callback is marked with the 'worklet' directive, it runs synchronously on the UI thread; otherwise it is delivered asynchronously as a regular JS event.

placeholder

iOS
tvOS
Optional • Type: string

A text that is displayed when the field is empty.

ref

iOS
tvOS
Optional • Type: Ref<TextFieldRef>

text

iOS
tvOS
Optional • Type: ObservableState<string>

An observable state that holds the current text. Create one with useNativeState('') or useNativeState('initial value'). If omitted, the field manages its own internal state.

Types

TextFieldRef

iOS
tvOS

Can be used for imperatively focusing and selecting text on the TextField component.

PropertyTypeDescription
blur() => Promise<void>
-
focus() => Promise<void>
-
setSelection(start: number, end: number) => Promise<void>
Only for:
iOS 18.0+ tvos 18.0+

Programmatically select text using start and end indices.

setText(newText: string) => Promise<void>
-