How to detect when keyboard is opened or closed in React Native
React NativeReact Native Problem Overview
How to detect if user close the keyboard in react native, I want to call a function when user closed the keyboard.
and if you can answer to detect keyboard is open too it will be appreciated, thanks.
I'm on the react native latest version 0.56
React Native Solutions
Solution 1 - React Native
Thank you guys for your answers. Here is the hooks version if someone is interested:
const [isKeyboardVisible, setKeyboardVisible] = useState(false);
useEffect(() => {
const keyboardDidShowListener = Keyboard.addListener(
'keyboardDidShow',
() => {
setKeyboardVisible(true); // or some other action
}
);
const keyboardDidHideListener = Keyboard.addListener(
'keyboardDidHide',
() => {
setKeyboardVisible(false); // or some other action
}
);
return () => {
keyboardDidHideListener.remove();
keyboardDidShowListener.remove();
};
}, []);
Solution 2 - React Native
Keyboard class from facebook.
1. You can useHere is a sample code.
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}
/>
);
}
}
###2. You can use some other npm dependency also, like react-native-keyboard-listener.
Import the component into the file you want to use it:
import KeyboardListener from 'react-native-keyboard-listener';
Use the component directly in your code. The component won't render anything
<View>
<KeyboardListener
onWillShow={() => { this.setState({ keyboardOpen: true }); }}
onWillHide={() => { this.setState({ keyboardOpen: false }); }}
/>
</View>
To install this dependency run below command.
npm install --save react-native-keyboard-listener
Choose any you feel more convenient.
Solution 3 - React Native
Custom Hook:
import { useEffect, useState } from 'react';
import { Keyboard } from 'react-native';
export function useKeyboard() {
const [isKeyboardVisible, setKeyboardVisible] = useState(false);
useEffect(() => {
const keyboardDidShowListener = Keyboard.addListener(
'keyboardDidShow',
() => {
setKeyboardVisible(true); // or some other action
},
);
const keyboardDidHideListener = Keyboard.addListener(
'keyboardDidHide',
() => {
setKeyboardVisible(false); // or some other action
},
);
return () => {
keyboardDidHideListener.remove();
keyboardDidShowListener.remove();
};
}, []);
return isKeyboardVisible;
}
Usage:
import { useKeyboard } from './useKeyboard';
const isKeyBoardOpen = useKeyboard();
Solution 4 - React Native
Improved version of @Khemraj 's answer (which worked great for me) with bound methods to the instance in order to be able to update the component's state from the listener and re-render.
import React, { Component } from 'react';
import { Keyboard, TextInput } from 'react-native';
class Example extends Component {
state = {
keyboardState: 'closed'
}
componentWillMount () {
this.keyboardDidShowListener = Keyboard.addListener('keyboardDidShow', this._keyboardDidShow);
this.keyboardDidHideListener = Keyboard.addListener('keyboardDidHide', this._keyboardDidHide);
}
componentWillUnmount () {
this.keyboardDidShowListener.remove();
this.keyboardDidHideListener.remove();
}
_keyboardDidShow = () => {
this.setState({
keyboardState: 'opened'
});
}
_keyboardDidHide = () => {
this.setState({
keyboardState: 'closed'
});
}
render() {
return (
<TextInput
onSubmitEditing={Keyboard.dismiss}
/>
);
}
}
Solution 5 - React Native
I came across the usekeyboard hook found in @react-native-community/hooks
E.g.
import { useKeyboard } from '@react-native-community/hooks'
const keyboard = useKeyboard()
console.log('keyboard isKeyboardShow: ', keyboard.keyboardShown)
console.log('keyboard keyboardHeight: ', keyboard.keyboardHeight)
Source: https://github.com/react-native-community/hooks/blob/master/src/useKeyboard.ts
Solution 6 - React Native
MobX version:
import { observable } from 'mobx'
import { EmitterSubscription, Keyboard } from 'react-native'
class KeyboardStore {
@observable isKeyboardVisible = false
keyboardSubs: EmitterSubscription[] = []
subKeyboard() {
this.keyboardSubs = [
Keyboard.addListener('keyboardDidShow', () => this.isKeyboardVisible = true),
Keyboard.addListener('keyboardDidHide', () => this.isKeyboardVisible = false),
]
}
unsubKeyboard() {
this.keyboardSubs.forEach(sub => sub.remove())
this.keyboardSubs = []
}
}
and inside top level App component
useEffect(() => {
store.subKeyboard()
return () => {
store.unsubKeyboard()
}
}, [])
and check anywhere in your app with store.isKeyboardVisible
.
Solution 7 - React Native
All the thing already avalable in react-native Keyboard
class
import React, { Component } from 'react';
import { Keyboard, TextInput } from 'react-native';
class Example extends Component {
componentDidMount() {
this.keyboardDidShowListener = Keyboard.addListener('keyboardDidShow', this._keyboardDidShow);
this.keyboardDidHideListener = Keyboard.addListener('keyboardDidHide', this._keyboardDidHide);
this.keyboardWillShowListener = Keyboard.addListener('keyboardWillShow', this._keyboardWillShow);
this.keyboardWillHideListener = Keyboard.addListener('keyboardWillHide', this._keyboardWillHide);
}
componentWillUnmount() {
this.keyboardDidShowListener.remove();
this.keyboardDidHideListener.remove();
this.keyboardWillShowListener.remove();
this.keyboardWillHideListener.remove();
}
_keyboardWillShow() {
console.log('Keyboard Showning')
}
_keyboardWillHide() {
console.log('Keyboard Heding')
}
_keyboardDidShow() {
alert('Keyboard Shown');
}
_keyboardDidHide() {
alert('Keyboard Hidden');
}
render() {
return (
<TextInput
onSubmitEditing={Keyboard.dismiss}
/>
);
}
}