Edit

Keyboard

Keyboard module to control keyboard events.

Usage

The Keyboard module allows you to listen for native events and react to them, as well as make changes to the keyboard, like dismissing it.

• Function Component Example
• Class Component Example

import React, { useEffect } from "react";
import { Keyboard, TextInput, StyleSheet } from "react-native";

const Example = () => {

  useEffect(() => {
    Keyboard.addListener("keyboardDidShow", _keyboardDidShow);
    Keyboard.addListener("keyboardDidHide", _keyboardDidHide);

    // cleanup function
    return () => {
      Keyboard.removeListener("keyboardDidShow", _keyboardDidShow);
      Keyboard.removeListener("keyboardDidHide", _keyboardDidHide);
    };
  }, []);

  const _keyboardDidShow = () => {
    alert("Keyboard Shown");
  };

  const _keyboardDidHide = () => {
    alert("Keyboard Hidden");
  };

  return <TextInput style={s.input} placeholder='Click here ...' onSubmitEditing={Keyboard.dismiss} />;
}

const s = StyleSheet.create({
   input:{
    margin:60,
    padding: 10,
    borderWidth: 0.5,
    borderRadius: 4,
    backgroundColor: "#fff"
   }
})

export default Example;

import React, {Component} from 'react';
import {Keyboard, TextInput , StyleSheet} from 'react-native';

class Example extends Component {
  componentDidMount() {
    this.keyboardDidShowListener = Keyboard.addListener(
      'keyboardDidShow',
      this._keyboardDidShow,
    );
    this.keyboardDidHideListener = Keyboard.addListener(
      'keyboardDidHide',
      this._keyboardDidHide,
    );
  }

  componentWillUnmount() {
    this.keyboardDidShowListener.remove();
    this.keyboardDidHideListener.remove();
  }

  _keyboardDidShow() {
    alert('Keyboard Shown');
  }

  _keyboardDidHide() {
    alert('Keyboard Hidden');
  }

  render() {
    return <TextInput style={s.input} placeholder='Click here ...' onSubmitEditing={Keyboard.dismiss} />;
  }
}

const s = StyleSheet.create({
   input:{
    margin:60,
    padding: 10,
    borderWidth: 0.5,
    borderRadius: 4,
    backgroundColor: "#fff"
   }
})

export default Example;

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Reference

Methods

addListener()

static addListener(eventName, callback)

The addListener function connects a JavaScript function to an identified native keyboard notification event.

This function then returns the reference to the listener.

Parameters:

Name	Type	Required	Description
eventName	string	Yes	The nativeEvent is the string that identifies the event you're listening for. See below
callback	function	Yes	The function to be called when the event fires

nativeEvent

This can be any of the following

• keyboardWillShow
• keyboardDidShow
• keyboardWillHide
• keyboardDidHide
• keyboardWillChangeFrame
• keyboardDidChangeFrame

Note that if you set android:windowSoftInputMode to adjustResize or adjustPan, only keyboardDidShow and keyboardDidHide events will be available on Android. If you set android:windowSoftInputMode to adjustNothing, no events will be available on Android. keyboardWillShow as well as keyboardWillHide are generally not available on Android since there is no native corresponding event.

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removeListener()

static removeListener(eventName, callback)

Removes a specific listener.

Parameters:

Name	Type	Required	Description
eventName	string	Yes	The nativeEvent is the string that identifies the event you're listening for
callback	function	Yes	The function to be called when the event fires

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removeAllListeners()

static removeAllListeners(eventName)

Removes all listeners for a specific event type.

Parameters:

Name	Type	Required	Description
eventType	string	Yes	The native event string listeners are watching which will be removed

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dismiss()

static dismiss()

Dismisses the active keyboard and removes focus.

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scheduleLayoutAnimation

static scheduleLayoutAnimation(event)

Useful for syncing TextInput (or other keyboard accessory view) size of position changes with keyboard movements.