React Native State Example Tutorial

When “React Native State Example Tutorial” moves through design, development and browser testing, run remote digital marketing agency can clarify hand-offs and time spent on revisions while leaving code quality, accessibility and released behaviour as the real measures of success.

For API changes, browser support and current usage patterns, compare the snippet with the React Native project before adopting it in production.

May 16, 2022

Hi Guys,

This example is focused on how to use state in functional component in react native. it's a simple example of a state example in react native. This tutorial will give you a simple example of how state works in react native. This post will give you a simple example of how to use state in react native. Alright, let’s dive into the steps.

The state is like a component’s personal data storage. The state is useful for handling data that changes over time or that comes from user interaction. State gives your components memory!

You can add a state to a component by calling React’s useState Hook. A Hook is a kind of function that lets you “hook into” React features. For example, useState is a Hook that lets you add state to function components.

Step 1: Download Project

In the first step run the following command to create a project.

expo init PropsDemo

Step 2: App.js

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

import React, { useState } from 'react';
import { StyleSheet, Text, View, StatusBar, Button } from 'react-native';
const App = () => {
    const [value, setValue] = useState('Divyesh');
    const addChange = () => {
        setValue('Bhavesh');
    }
    const reset = () => {
        setValue('Divyesh');
    }
    return (
        <View style={styles.container}>
            <Text style={styles.text}>Welcome {value} !</Text>
            <View style={styles.buttonView}>
                <View style={styles.button}>
                    <Button 
                        title='change'
                        onPress={() => addChange()}
                    />
                </View>
                <View >
                    <Button 
                        title='Reset'
                        onPress={() => reset()}
                    />
                </View>
            </View>
            <StatusBar backgroundColor={'blue'}/>
        </View>
    );
}
const styles = StyleSheet.create({
    container: {
        flex:1,
        justifyContent:'center',
        alignItems:'center',
    },
    text: {
        fontSize:28,
        fontWeight:'bold',
    },
    buttonView: {
        marginTop:15,
        flexDirection:'row',
    },
    button: {
        marginRight:10,
    },
});
export default App;

Run Project

In the last step run your project using the below command.

expo start

You can QR code scan in Expo Go Application on mobile.

Output :

It will help you...