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React Native State

Infinitbility
Props and State
January 12th, 2021 · 1 min read
React Native State

This Article Part of React Native Tutorial Series want to start from scrach follow below link

https://infinitbility.com/react-native/table-of-contents

today, we learn to manage to react native state.

React Native manage data using state and props. props mean those data, send data to the child component from the parent component but we can discuss props in our next coming tutorial.

state

we are using state to store data and accessible on the whole file. when you store Anything on state then you can use it anywhere you want like functions, send data to the server, etc.

Anything that changes over time is known as state.

setState

setState() method use to store or update data on state.

React Native create state example

below example explain how to create state on react native.

1import React from 'react';
2import { StyleSheet, Text, View } from 'react-native';
3
4export default class App extends React.Component {
5 this.state = {
6 text: 'React Native State Example'
7 }
8 render() {
9 return (
10 <View>
11 <Text> {this.state.text} </Text>
12 </View>
13 );
14 }
15}

React Native update state example

below example explain how to update state on react native.

1import React, { Component } from 'react'
2import { Text, View } from 'react-native'
3
4class App extends Component {
5 state = {
6 text: 'React Native State Example'
7 }
8 updateState = ()this.setState({ text: 'React Native State Example Updated' })
9 render() {
10 return (
11 <View>
12 <Text onPress = {this.updateState}>
13 {this.state.text}
14 </Text>
15 </View>
16 );
17 }
18}
19export default App;

More From React Native Tutorial

Basics

  1. Introduction To React Native
  2. React Native Environment Setup using expo
  3. React Native Environment Setup for windows
  4. React Native Environment setup on Mac OS
  5. React Native Environment setup on linux
  6. React Native Project Structure
  7. React Native State
  8. React Native Props
  9. React Native Styling
  10. React Native Flexbox
  11. React Native Text
  12. React Native Textinput
  13. React Native Commands
  14. React Native ScrollView

Advances

  1. React Native Dark Mode
  2. React Native Fonts
  3. React Native SQLite
  4. React Native DatepickerAndroid
  5. React native ScrollView scroll to position
  6. How to align icon with text in react native
  7. React Native Image
  8. React Native Firebase Crashlytics
  9. React Native Async Storage
  10. React Native Share

Error & Issue Solution

  1. Task :app:transformDexArchiveWithDexMergerForDebug FAILED In React Native
  2. Expiring Daemon because JVM heap space is exhausted In React Native
  3. Task :app:transformNativeLibsWithMergeJniLibsForDebug FAILED In React Native
  4. Unable to determine the current character, it is not a string, number, array, or object in react native
  5. App crashed immediately after install react native video or track player
  6. how to delete SQLite database in android react native
  7. React native material dropdown twice click issue
  8. How to get the current route in react-navigation?
  9. how to disable drawer on the drawer navigation screen?
  10. Image not showing in ios 14 react native

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