TextField
A SwiftUI TextField component for text input.
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
- npx expo install @expo/uiIf you are installing this in an existing React Native app, make sure to install expo in your project.
Usage
Basic text field
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.
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.
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.
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.
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
Type: React.Element<TextFieldProps>
Renders a SwiftUI TextField.
boolean • Default: falseIf true, the text field will be focused automatically when mounted.
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. UselineLimitmodifier to cap visible lines.
Acceptable values are: 'horizontal' | 'vertical'
stringInitial value displayed when mounted. Uncontrolled — change key to reset.
(focused: boolean) => voidA callback triggered when the field gains or loses focus.
({ start, end }: {
end: number,
start: number
}) => voidA callback triggered when user selects text in the TextField.
(value: string) => voidA callback triggered when the text value changes.
Ref<TextFieldRef>Types
Can be used for imperatively setting text and focus on the TextField component.