TextInput
A foundational component for inputting text into the app via a keyboard. Props provide configurability for several features, such as auto-correction, auto-capitalization, placeholder text, and different keyboard types, such as a numeric keypad.
The simplest use case is to plop down a TextInput
and subscribe to the onChangeText
events to read the user input. There are also other events, such as onSubmitEditing
and onFocus
that can be subscribed to. A simple example:
<TextInput
style={{height: 40, borderColor: 'gray', borderWidth: 1}}
onChangeText={(text) => this.setState({text})}
value={this.state.text}
/>
Note that some props are only available with multiline={true/false}
:
var onlyMultiline = {
onSelectionChange: true, // not supported in Open Source yet
onTextInput: true, // not supported in Open Source yet
children: true,
};
var notMultiline = {
onSubmitEditing: true,
};
Props
placeholderTextColor
autoCapitalize
autoFocus
defaultValue
editable
keyboardType
multiline
onBlur
onChange
onChangeText
onEndEditing
onFocus
onLayout
onSubmitEditing
placeholder
autoCorrect
secureTextEntry
style
testID
textAlign
value
numberOfLines
textAlignVertical
underlineColorAndroid
clearButtonMode
clearTextOnFocus
enablesReturnKeyAutomatically
maxLength
returnKeyType
selectTextOnFocus
selectionState
Methods
Reference
Props
placeholderTextColor
The text color of the placeholder string
Type | Required |
---|---|
string | No |
autoCapitalize
Can tell TextInput to automatically capitalize certain characters.
- characters: all characters,
- words: first letter of each word
- sentences: first letter of each sentence (default)
- none: don't auto capitalize anything
Type | Required |
---|---|
enum('none', 'sentences', 'words', 'characters') | No |
autoFocus
If true, focuses the input on componentDidMount. The default value is false.
Type | Required |
---|---|
bool | No |
defaultValue
Provides an initial value that will change when the user starts typing. Useful for simple use-cases where you don't want to deal with listening to events and updating the value prop to keep the controlled state in sync.
Type | Required |
---|---|
string | No |
editable
If false, text is not editable. The default value is true.
Type | Required |
---|---|
bool | No |
keyboardType
Determines which keyboard to open, e.g.numeric
.
The following values work across platforms:
- default
- numeric
- email-address
Type | Required |
---|---|
enum('default', 'numeric', 'email-address', 'ascii-capable', 'numbers-and-punctuation', 'url', 'number-pad', 'phone-pad', 'name-phone-pad', 'decimal-pad', 'twitter', 'web-search') | No |
multiline
If true, the text input can be multiple lines. The default value is false.
Type | Required |
---|---|
bool | No |
onBlur
Callback that is called when the text input is blurred
Type | Required |
---|---|
function | No |
onChange
Callback that is called when the text input's text changes.
Type | Required |
---|---|
function | No |
onChangeText
Callback that is called when the text input's text changes. Changed text is passed as an argument to the callback handler.
Type | Required |
---|---|
function | No |
onEndEditing
Callback that is called when text input ends.
Type | Required |
---|---|
function | No |
onFocus
Callback that is called when the text input is focused
Type | Required |
---|---|
function | No |
onLayout
Invoked on mount and layout changes with {x, y, width, height}
.
Type | Required |
---|---|
function | No |
onSubmitEditing
Callback that is called when the text input's submit button is pressed.
Type | Required |
---|---|
function | No |
placeholder
The string that will be rendered before text input has been entered
Type | Required |
---|---|
string | No |
autoCorrect
If false, disables auto-correct. The default value is true.
Type | Required |
---|---|
bool | No |
secureTextEntry
If true, the text input obscures the text entered so that sensitive text like passwords stay secure. The default value is false.
Type | Required |
---|---|
bool | No |
style
Styles
Type | Required |
---|---|
Text | No |
testID
Used to locate this view in end-to-end tests
Type | Required |
---|---|
string | No |
textAlign
Set the position of the cursor from where editing will begin. @platorm android
Type | Required |
---|---|
enum('start', 'center', 'end') | No |
value
The value to show for the text input. TextInput is a controlled component, which means the native value will be forced to match this value prop if provided. For most uses this works great, but in some cases this may cause flickering - one common cause is preventing edits by keeping value the same. In addition to simply setting the same value, either set editable={false}
, or set/update maxLength
to prevent unwanted edits without flicker.
Type | Required |
---|---|
string | No |
numberOfLines
Sets the number of lines for a TextInput. Use it with multiline set to true to be able to fill the lines.
Type | Required | Platform |
---|---|---|
number | No | Android |
textAlignVertical
Aligns text vertically within the TextInput.
Type | Required | Platform |
---|---|---|
enum('top', 'center', 'bottom') | No | Android |
underlineColorAndroid
The color of the textInput underline.
Type | Required | Platform |
---|---|---|
string | No | Android |
clearButtonMode
When the clear button should appear on the right side of the text view
Type | Required | Platform |
---|---|---|
enum('never', 'while-editing', 'unless-editing', 'always') | No | iOS |
clearTextOnFocus
If true, clears the text field automatically when editing begins
Type | Required | Platform |
---|---|---|
bool | No | iOS |
enablesReturnKeyAutomatically
If true, the keyboard disables the return key when there is no text and automatically enables it when there is text. The default value is false.
Type | Required | Platform |
---|---|---|
bool | No | iOS |
maxLength
Limits the maximum number of characters that can be entered. Use this instead of implementing the logic in JS to avoid flicker.
Type | Required | Platform |
---|---|---|
number | No | iOS |
returnKeyType
Determines how the return key should look.
Type | Required | Platform |
---|---|---|
enum('default', 'go', 'google', 'join', 'next', 'route', 'search', 'send', 'yahoo', 'done', 'emergency-call') | No | iOS |
selectTextOnFocus
If true, all text will automatically be selected on focus
Type | Required | Platform |
---|---|---|
bool | No | iOS |
selectionState
See DocumentSelectionState.js, some state that is responsible for maintaining selection information for a document
Type | Required | Platform |
---|---|---|
DocumentSelectionState | No | iOS |
Methods
isFocused()
isFocused():
clear()
clear();