React Native OnChange Event Example Tutorial.

Hi Guys,

In this blog, I will explain you how to use on change event in react native. You can easily use on change event in react native. First i will create new fuction _onPressButton

, after I will using on change event using onChange attitude add in tag react native.

Here, I will give you full example for simply display on change event using react native as bellow.

Step 1 - Create project

In the first step Run the following command for create project.

expo init onChange 

Step 2 - App.js

In this step, You will open App.js file and put the code.

import React, { Component } from 'react';
import { TextInput, StyleSheet, View } from 'react-native';
export default class Home extends Component {
  _onPressButton() {
    alert('You type in text box')
  }
  render() {
    return (
        <View style={styles.buttonContainer}>
          <TextInput
          style={{height: 40}}
          placeholder="Type here!"
          autoFocus={true} 
          onChange={this._onPressButton}
        />
        </View>
    );
  }
}
const styles = StyleSheet.create({
  container: {
   flex: 1,
   justifyContent: 'center',
  },
  buttonContainer: {
    margin: 80
  }
});

Step 3 - Run project

In the last step run your project using bellow command.

npm start

Output

It will help you...