react-native/docs/keyboard.md
Héctor Ramos e11d496e9d Additional markdown adjustments
Summary:
Follow up to 9ec95673909beac7798f589e0e9821b4225f8fa9
Closes https://github.com/facebook/react-native/pull/16759

Differential Revision: D6285219

Pulled By: hramos

fbshipit-source-id: 7012d257a5a6cff06cb2d94203a9379e4b7e3c4e
2017-11-09 09:55:05 -08:00

2.8 KiB

id title layout category permalink next previous
keyboard Keyboard docs APIs docs/keyboard.html layoutanimation interactionmanager

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.

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

class Example extends Component {
  componentWillMount () {
    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
        onSubmitEditing={Keyboard.dismiss}
      />
    );
  }
}

Methods


Reference

Methods

addListener()

Keyboard.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.

@param {string} eventName The nativeEvent is the string that identifies the event you're listening for. This can be any of the following:

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

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

@param {function} callback function to be called when the event fires.


removeListener()

Keyboard.removeListener(eventName, callback)

Removes a specific listener.

@param {string} eventName The nativeEvent is the string that identifies the event you're listening for. @param {function} callback function to be called when the event fires.


removeAllListeners()

Keyboard.removeAllListeners(eventName)

Removes all listeners for a specific event type.

@param {string} eventType The native event string listeners are watching which will be removed.


dismiss()

Keyboard.dismiss()

Dismisses the active keyboard and removes focus.