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, };

Edit on GitHubProps #

autoCapitalize enum('none', 'sentences', 'words', 'characters') #

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

autoCorrect bool #

If false, disables auto-correct. The default value is true.

autoFocus bool #

If true, focuses the input on componentDidMount. The default value is false.

clearButtonMode enum('never', 'while-editing', 'unless-editing', 'always') #

When the clear button should appear on the right side of the text view @platform ios

clearTextOnFocus bool #

If true, clears the text field automatically when editing begins @platform ios

defaultValue string #

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.

editable bool #

If false, text is not editable. The default value is true. @platform ios

enablesReturnKeyAutomatically bool #

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. @platform ios

keyboardType enum("default", 'numeric', 'email-address', "ascii-capable", 'numbers-and-punctuation', 'url', 'number-pad', 'phone-pad', 'name-phone-pad', 'decimal-pad', 'twitter', 'web-search') #

Determines which keyboard to open, e.g.numeric.

The following values work across platforms: - default - numeric - email-address

maxLength number #

Limits the maximum number of characters that can be entered. Use this instead of implementing the logic in JS to avoid flicker. @platform ios

multiline bool #

If true, the text input can be multiple lines. The default value is false.

onBlur function #

Callback that is called when the text input is blurred

onChange function #

Callback that is called when the text input's text changes.

onChangeText function #

Callback that is called when the text input's text changes. Changed text is passed as an argument to the callback handler.

onEndEditing function #

Callback that is called when text input ends.

onFocus function #

Callback that is called when the text input is focused

onLayout function #

Invoked on mount and layout changes with {x, y, width, height}.

onSubmitEditing function #

Callback that is called when the text input's submit button is pressed.

placeholder string #

The string that will be rendered before text input has been entered

placeholderTextColor string #

The text color of the placeholder string

returnKeyType enum('default', 'go', 'google', 'join', 'next', 'route', 'search', 'send', 'yahoo', 'done', 'emergency-call') #

Determines how the return key should look. @platform ios

secureTextEntry bool #

If true, the text input obscures the text entered so that sensitive text like passwords stay secure. The default value is false.

selectTextOnFocus bool #

If true, all text will automatically be selected on focus @platform ios

selectionState DocumentSelectionState #

See DocumentSelectionState.js, some state that is responsible for maintaining selection information for a document @platform ios

style Text#style #

Styles

testID string #

Used to locate this view in end-to-end tests

textAlign enum('start', 'center', 'end') #

Set the position of the cursor from where editing will begin. @platorm android

textAlignVertical enum('top', 'center', 'bottom') #

Aligns text vertically within the TextInput. @platform android

underlineColorAndroid string #

The color of the textInput underline. @platform android

value string #

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.

Edit on GitHubExamples #

'use strict';

var React = require('react-native');
var {
  Text,
  TextInput,
  View,
  StyleSheet,
} = React;

var WithLabel = React.createClass({
  render: function() {
    return (
      <View style={styles.labelContainer}>
        <View style={styles.label}>
          <Text>{this.props.label}</Text>
        </View>
        {this.props.children}
      </View>
    );
  },
});

var TextEventsExample = React.createClass({
  getInitialState: function() {
    return {
      curText: '<No Event>',
      prevText: '<No Event>',
      prev2Text: '<No Event>',
    };
  },

  updateText: function(text) {
    this.setState((state) => {
      return {
        curText: text,
        prevText: state.curText,
        prev2Text: state.prevText,
      };
    });
  },

  render: function() {
    return (
      <View>
        <TextInput
          autoCapitalize="none"
          placeholder="Enter text to see events"
          autoCorrect={false}
          onFocus={() => this.updateText('onFocus')}
          onBlur={() => this.updateText('onBlur')}
          onChange={(event) => this.updateText(
            'onChange text: ' + event.nativeEvent.text
          )}
          onEndEditing={(event) => this.updateText(
            'onEndEditing text: ' + event.nativeEvent.text
          )}
          onSubmitEditing={(event) => this.updateText(
            'onSubmitEditing text: ' + event.nativeEvent.text
          )}
          style={styles.default}
        />
        <Text style={styles.eventLabel}>
          {this.state.curText}{'\n'}
          (prev: {this.state.prevText}){'\n'}
          (prev2: {this.state.prev2Text})
        </Text>
      </View>
    );
  }
});

class RewriteExample extends React.Component {
  constructor(props) {
    super(props);
    this.state = {text: ''};
  }
  render() {
    var limit = 20;
    var remainder = limit - this.state.text.length;
    var remainderColor = remainder > 5 ? 'blue' : 'red';
    return (
      <View style={styles.rewriteContainer}>
        <TextInput
          multiline={false}
          maxLength={limit}
          onChangeText={(text) => {
            text = text.replace(/ /g, '_');
            this.setState({text});
          }}
          style={styles.default}
          value={this.state.text}
        />
        <Text style={[styles.remainder, {color: remainderColor}]}>
          {remainder}
        </Text>
      </View>
    );
  }
}

var styles = StyleSheet.create({
  page: {
    paddingBottom: 300,
  },
  default: {
    height: 26,
    borderWidth: 0.5,
    borderColor: '#0f0f0f',
    flex: 1,
    fontSize: 13,
    padding: 4,
  },
  multiline: {
    borderWidth: 0.5,
    borderColor: '#0f0f0f',
    flex: 1,
    fontSize: 13,
    height: 50,
    padding: 4,
    marginBottom: 4,
  },
  multilineWithFontStyles: {
    color: 'blue',
    fontWeight: 'bold',
    fontSize: 18,
    fontFamily: 'Cochin',
    height: 60,
  },
  multilineChild: {
    width: 50,
    height: 40,
    position: 'absolute',
    right: 5,
    backgroundColor: 'red',
  },
  eventLabel: {
    margin: 3,
    fontSize: 12,
  },
  labelContainer: {
    flexDirection: 'row',
    marginVertical: 2,
    flex: 1,
  },
  label: {
    width: 115,
    alignItems: 'flex-end',
    marginRight: 10,
    paddingTop: 2,
  },
  rewriteContainer: {
    flexDirection: 'row',
    alignItems: 'center',
  },
  remainder: {
    textAlign: 'right',
    width: 24,
  },
});

exports.displayName = (undefined: ?string);
exports.title = '<TextInput>';
exports.description = 'Single and multi-line text inputs.';
exports.examples = [
  {
    title: 'Auto-focus',
    render: function() {
      return <TextInput autoFocus={true} style={styles.default} />;
    }
  },
  {
    title: "Live Re-Write (<sp>  ->  '_') + maxLength",
    render: function() {
      return <RewriteExample />;
    }
  },
  {
    title: 'Auto-capitalize',
    render: function() {
      return (
        <View>
          <WithLabel label="none">
            <TextInput
              autoCapitalize="none"
              style={styles.default}
            />
          </WithLabel>
          <WithLabel label="sentences">
            <TextInput
              autoCapitalize="sentences"
              style={styles.default}
            />
          </WithLabel>
          <WithLabel label="words">
            <TextInput
              autoCapitalize="words"
              style={styles.default}
            />
          </WithLabel>
          <WithLabel label="characters">
            <TextInput
              autoCapitalize="characters"
              style={styles.default}
            />
          </WithLabel>
        </View>
      );
    }
  },
  {
    title: 'Auto-correct',
    render: function() {
      return (
        <View>
          <WithLabel label="true">
            <TextInput autoCorrect={true} style={styles.default} />
          </WithLabel>
          <WithLabel label="false">
            <TextInput autoCorrect={false} style={styles.default} />
          </WithLabel>
        </View>
      );
    }
  },
  {
    title: 'Keyboard types',
    render: function() {
      var keyboardTypes = [
        'default',
        'ascii-capable',
        'numbers-and-punctuation',
        'url',
        'number-pad',
        'phone-pad',
        'name-phone-pad',
        'email-address',
        'decimal-pad',
        'twitter',
        'web-search',
        'numeric',
      ];
      var examples = keyboardTypes.map((type) => {
        return (
          <WithLabel key={type} label={type}>
            <TextInput
              keyboardType={type}
              style={styles.default}
            />
          </WithLabel>
        );
      });
      return <View>{examples}</View>;
    }
  },
  {
    title: 'Return key types',
    render: function() {
      var returnKeyTypes = [
        'default',
        'go',
        'google',
        'join',
        'next',
        'route',
        'search',
        'send',
        'yahoo',
        'done',
        'emergency-call',
      ];
      var examples = returnKeyTypes.map((type) => {
        return (
          <WithLabel key={type} label={type}>
            <TextInput
              returnKeyType={type}
              style={styles.default}
            />
          </WithLabel>
        );
      });
      return <View>{examples}</View>;
    }
  },
  {
    title: 'Enable return key automatically',
    render: function() {
      return (
        <View>
          <WithLabel label="true">
            <TextInput enablesReturnKeyAutomatically={true} style={styles.default} />
          </WithLabel>
        </View>
      );
    }
  },
  {
    title: 'Secure text entry',
    render: function() {
      return (
        <View>
          <WithLabel label="true">
            <TextInput password={true} style={styles.default} defaultValue="abc" />
          </WithLabel>
        </View>
      );
    }
  },
  {
    title: 'Event handling',
    render: function(): ReactElement { return <TextEventsExample />; },
  },
  {
    title: 'Colored input text',
    render: function() {
      return (
        <View>
          <TextInput
            style={[styles.default, {color: 'blue'}]}
            defaultValue="Blue"
          />
          <TextInput
            style={[styles.default, {color: 'green'}]}
            defaultValue="Green"
          />
        </View>
      );
    }
  },
  {
    title: 'Clear button mode',
    render: function () {
      return (
        <View>
          <WithLabel label="never">
            <TextInput
              style={styles.default}
              clearButtonMode="never"
            />
          </WithLabel>
          <WithLabel label="while editing">
            <TextInput
              style={styles.default}
              clearButtonMode="while-editing"
            />
          </WithLabel>
          <WithLabel label="unless editing">
            <TextInput
              style={styles.default}
              clearButtonMode="unless-editing"
            />
          </WithLabel>
          <WithLabel label="always">
            <TextInput
              style={styles.default}
              clearButtonMode="always"
            />
          </WithLabel>
        </View>
      );
    }
  },
  {
    title: 'Clear and select',
    render: function() {
      return (
        <View>
          <WithLabel label="clearTextOnFocus">
            <TextInput
              placeholder="text is cleared on focus"
              defaultValue="text is cleared on focus"
              style={styles.default}
              clearTextOnFocus={true}
            />
          </WithLabel>
          <WithLabel label="selectTextOnFocus">
            <TextInput
              placeholder="text is selected on focus"
              defaultValue="text is selected on focus"
              style={styles.default}
              selectTextOnFocus={true}
            />
          </WithLabel>
        </View>
      );
    }
  },
  {
    title: 'Multiline',
    render: function() {
      return (
        <View>
          <TextInput
            placeholder="multiline text input"
            multiline={true}
            style={styles.multiline}
          />
          <TextInput
            placeholder="multiline text input with font styles and placeholder"
            multiline={true}
            clearTextOnFocus={true}
            autoCorrect={true}
            autoCapitalize="words"
            placeholderTextColor="red"
            keyboardType="url"
            style={[styles.multiline, styles.multilineWithFontStyles]}
          />
          <TextInput
            placeholder="uneditable multiline text input"
            editable={false}
            multiline={true}
            style={styles.multiline}
          />
          <TextInput
            placeholder="multiline with children"
            multiline={true}
            enablesReturnKeyAutomatically={true}
            returnKeyType="go"
            style={styles.multiline}>
            <View style={styles.multilineChild}/>
          </TextInput>
        </View>
      );
    }
  }
];

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