react-native-masked-text

This is a simple masked text (normal text and input text) component for React-Native.

Thanks to vanilla-masker =). Thanks to moment =).

Supported Versions

React-native: 0.32.0 or higher

Install

npm install react-native-masked-text --save

Usage (TextInputMask)

import React, { Component } from 'react'

// import the component
import { TextInputMask } from 'react-native-masked-text'

export default class MyComponent extends Component {
	constructor(props) {
		super(props)
	}

	isValid() {
		// isValid method returns if the inputed value is valid.
		// Ex: if you input 40/02/1990 30:20:20, it will return false
		//	   because in this case, the day and the hour is invalid.
		let valid = this.myDateText.isValid();

		// get converted value. Using type=datetime, it returns the moment object.
		// If it's using type=money, it returns a Number object.
		let rawValue = this.myDateText.getRawValue();
	}

	render() {
		// the type is required but options is required only for some specific types.
		return (
			<TextInputMask
				refInput={(ref) => this.myDateText = ref;}
				type={'datetime'}
				options={{
					format: 'DD-MM-YYYY HH:mm:ss'
				}}
			/>
		)
	}
}

Props

type

credit-card: use the mask 9999 9999 9999 9999. It accepts options (see later in this doc).
cpf: use the mask 999.999.999-99 and numeric keyboard.
cnpj: use the mask 99.999.999/9999-99 and numeric keyboard.
zip-code: use the mask 99999-999 and numeric keyboard.
only-numbers: accept only numbers on field with numeric keyboard.
money: use the mask R$ 0,00 on the field with numeric keyboard. It accepts options (see later in this doc).
cel-phone: use the mask (99) 9999-9999 or (99) 99999-9999 (changing automaticaly by length). It accepts options (see later in this doc).
datetime: use datetime mask with moment format (default DD/MM/YYYY HH:mm:ss). It accepts options (see later in this doc).
custom: use your custom mask (see the options props later in this doc).

onChangeText

Invoked after new value applied to mask.

/**
 * @param {String} text the text AFTER mask is applied.
*/
onChangeText(text) {
	// ...
}

<TextInputMask
	type={'only-numbers'}
	onChangeText={this.onChangeText.bind(this)} />

checkText

Allow you to check and prevent value to be inputed.

/**
 * @param {String} previous the previous text in the masked field.
 * @param {String} next the next text that will be setted to field.
 * @return {Boolean} return true if must accept the value.
*/
checkText(previous, next) {
	return next === 'your valid value or other boolean condition';
}

<TextInputMask
	type={'only-numbers'}
	checkText={this.checkText.bind(this)} />

customTextInput

You can use this prop if you want custom text input instead native TextInput component:

const Textfield = MKTextField.textfield()
  .withPlaceholder('Text...')
  .withStyle(styles.textfield)
  .build();


<TextInputMask
	refInput={(ref) => this.myDateText = ref;}
	type={'money'}
	style={styles.input}
	customTextInput={Textfield}
	placeholder="Enter text to see events"
/>

customTextInputProps

Some custom inputs like react-native-textinput-effects have to set properties in mount time. For these types of components we use this property.

import React from 'react'
import { StyleSheet, View } from 'react-native'

import { TextInputMask } from 'react-native-masked-text'
import { Kaede } from 'react-native-textinput-effects'

export default class App extends React.Component {
  constructor(props) {
    super(props)

    this.state = {
      birthday: ''
    }
  }

  render() {
    return (
      <View style={styles.container}>
        <TextInputMask
          refInput={(ref) => this.myDateText = ref;}
          // here we set the custom component and their props.
          customTextInput={Kaede}
          customTextInputProps={{
            style:{ width: '80%' },
            label:'Birthday'
          }}

          type={'datetime'}
          options={{
            format: 'DD-MM-YYYY HH:mm:ss'
          }}

          // don't forget: the value and state!
          onChangeText={birthday => this.setState({ birthday })}
          value={this.state.birthday} />
      </View>
    );
  }
}

const styles = StyleSheet.create({
	container: {
		flex: 1,
		backgroundColor: '#fff',
		alignItems: 'center',
		justifyContent: 'center'
	}
})

TextInput Props

You can use the native props of TextInput, with this in mind:

• onChangeText is intercepted by component.
• value is intercepted by component.
• if you pass keyboardType, it will override the keyboardType of masked component.

TextInput Methods

If you want to use the methods of the native TextInput, use the getElement() method:

export default class App extends React.Component {
	onGoFocus() {
		// when you call getElement method, the instance of native TextInput will returned.
		this.refs['myText'].getElement().focus()
	}

	render() {
		return (
			<View style={styles.container}>
				<View>
					<TextInputMask
						ref="myText"
						type={'only-numbers'}
						style={styles.input}
					/>
				</View>
				<View>
					<Button
						onPress={this.onGoFocus.bind(this)}
						title="Go Focus Hue"
						color="#841584"
					/>
				</View>
			</View>
		)
	}
}

Options

Some types accept options, use it like this: <TextInputMask type={'money'} options={{ unit: 'US$' }} />

For type={'money'}

• options={...} _ precision (Number, default 2): the decimal places. _ separator (String, default ','): the decimal separator. _ delimiter (String, default '.'): the thousand separator. _ unit: (String, default 'R$'): the prefix text. _ suffixUnit (String, default ''): the suffix text. _ zeroCents (Boolean, default false): if must show cents.

For type={'cel-phone'}

• options={...} _ withDDD (Boolean, default true): if the ddd will be include in the mask. _ dddMask (String, default '(99) '): the default mask applied if withDDD is true.

For type={'datetime'}

• options={...} _ format (String, default DD/MM/YYYY HH:mm:ss): moment date format. It accepts the following: _ DD/MM/YYYY HH:mm:ss _ DD/MM/YYYY _ MM/DD/YYYY _ YYYY/MM/DD _ HH:mm:ss _ HH:mm _ HH * You can use all of dates with - instead of / if you want

For type={'custom'}

• options={...}

{
	/**
	 * mask: (String | required | default '')
	 * the mask pattern
	 * 9 - accept digit.
	 * A - accept alpha.
	 * S - accept alphanumeric.
	 * * - accept all, EXCEPT white space.
	*/
	mask: '999#AAA',

	/**
	 * validator: (Function | optional | defaults returns true)
	 * use this funcion to inform if the inputed value is a valid value (for invalid phone numbers, for example). The isValid method use this validator.
	*/
	validator: function(value, settings) {
		return true
	},
	/**
	 * getRawValue: (Function | optional | defaults return current masked value)
	 * use this function to parse and return values to use what you want.
	 * for example, if you want to create a phone number mask (999) 999-99-99 but want to get only
	 * the numbers for value, use this method for this parse step.
	*/
	getRawValue: function(value, settings) {
		return 'my converted value';
	},
	/**
	 * translation: (Object | optional | defaults 9, A, S, *)
	 * the dictionary that translate mask and value.
	 * you can change defaults by simple override the key (9, A, S, *) or create some new.
	*/
	translation: {
		// this is a custom translation. The others (9, A, S, *) still works.
		// this translation will be merged and turns into 9, A, S, *, #.
		'#': function(val) {
			if (val === ' ') {
				return val;
			}

			// if returns null, undefined or '' (empty string), the value will be ignored.
			return null;
		},
		// in this case, we will override build-in * translation (allow all characters)
		// and set this to allow only blank spaces and some special characters.
		'*': function(val) {
			return [' ', '#', ',', '.', '!'].indexOf(val) >= 0 ? val : null;
		}
	}
}

For type={'credit-card'}

• options={...} * obfuscated (Boolean, default false): if the mask must be 9999 **** **** 9999

Methods

• getElement(): return the instance of TextInput component.
• isValid(): if the value inputed is valid for the mask. * credit-card: return true if the mask is complete. * cpf: return true if the mask is complete and cpf is valid. * cnpj: return true if the mask is complete and cnpj is valid. * zip-code: return true if the mask is complete. * only-numbers: always returns true. * money: always returns true. * cel-phone: return true if the mask is complete. * datetime: return true if the date value is valid for format. * custom: use custom validation, if it not exist, always returns true.
• getRawValue(): get the converted value of mask. * credit-card: return the array with the value parts. Ex: 1234 1234 1234 1234 returns [1234, 1234, 1234, 1234]. * cpf: return the value without mask. * cnpj: return the value without mask. * zip-code: return the value without mask. * only-numbers: return the value without mask. * money: return the Number value. Ex: R$ 1.234,56 returns 1234.56. * cel-phone: return the value without mask. * datetime: return the moment object for the date and format. * custom: use custom method (passed in options). If it not exists, returns the current value.

Usage (TextMask)

import React, { Component } from 'react'

// import the component
import { TextMask } from 'react-native-masked-text'

export default class MyComponent extends Component {
	constructor(props) {
		super(props)
		this.state = {
			text: '4567123409871234'
		}
	}

	render() {
		// the type is required but options is required only for some specific types.
		// the sample below will output 4567 **** **** 1234
		return (
			<TextMask
				value={this.state.text}
				type={'credit-card'}
				options={{
					obfuscated: true
				}}
			/>
		)
	}
}

Props

The same of TextInputMask, but for React-Native Text component instead TextInput.
Warning: if the value not match the mask, it will not appear.

Methods

getElement(): return the instance of Text component.

Extra (MaskService)

If you want, we expose the MaskService. You can use it:

Methods

• static toMask(type, value, settings): mask a value. _ type (String, required): the type of the mask (cpf, datetime, etc...) _ value (String, required): the value to be masked * settings (Object, optional): if the mask type accepts options, pass it in the settings parameter
• static toRawValue(type, maskedValue, settings): get the raw value of a masked value. _ type (String, required): the type of the mask (cpf, datetime, etc...) _ maskedValue (String, required): the masked value to be converted in raw value * settings (Object, optional): if the mask type accepts options, pass it in the settings parameter
• static isValid(type, value, settings): validate if the mask and the value match. _ type (String, required): the type of the mask (cpf, datetime, etc...) _ value (String, required): the value to be masked * settings (Object, optional): if the mask type accepts options, pass it in the settings parameter

Ex:

import { MaskService } from 'react-native-masked-text'

var money = MaskService.toMask('money', '123', {
	unit: 'US$',
	separator: '.',
	delimiter: ','
})

// money -> US$ 1.23

Throubleshooting

• If the es2015 error throw by babel, try run react-native start --reset-cache

Changelog

View changelog HERE