React Native Add Items to ScrollView using Loop
This is an Example of React Native Add Items to ScrollView using Loop. In this example, you will be having the basic idea about the loop in JavaScript. We are making a List but here we are not using any ListView instead we are making using the for loop and scroll view. We are attaching a single view containing Text on the ScrollView using the loop.
To Make a React Native App
Getting started with React Native will help you to know more about the way you can make a React Native project. We are going to use react-native init to make our React Native App.
Assuming that you have node installed, you can use npm to install the react-native-cli command line utility.
Open the terminal and go to the workspace and run
Run the following commands to create a new React Native projectnpm install -g react-native-cli
This will make a project structure with an index file named App.js in your project directory.react-native init ProjectName
Open App.js in any code editor and replace the code with the following code.
App.js
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | /*This is an Example of React Native Add Items to ScrollView using Loop*/ import React, { Component } from 'react'; //import react in our project import { View, ScrollView, StyleSheet, Text,} from 'react-native'; //import all the components we needed export default class App extends Component { constructor() { super(); //Array of Item to add this.items = [ 'Goa', 'Gujrat', 'Madhya Pradesh', 'Assam', 'Gujrat', 'Karnataka', 'Jharkhand', 'Himachal Pradesh', 'Manipur', 'Meghalaya', 'Mizoram', 'Uttarakhand', 'West Bengal', 'Tamil Nadu ', 'Punjab', 'Rajasthan', 'Bihar', 'Andhra Pradesh', 'Arunachal Pradesh', ]; } render() { return ( <View style={styles.container}> <ScrollView> {/*Loop of JS which is like foreach loop*/} {this.items.map((item, key) => ( //key is the index of the array //item is the single item of the array <View key={key} style={styles.item}> <Text style={styles.text}>{key}. {item}</Text> <View style={styles.separator} /> </View> ))} </ScrollView> </View> ); } } const styles = StyleSheet.create({ container: { flex: 1, paddingTop: 30, }, separator: { height: 1, backgroundColor: '#707080', width: '100%', }, text: { fontSize: 16, color: '#606070', padding: 10, }, }); |
To Run the React Native App
Open the terminal again and jump into your project using.cd ProjectNamereact-native run-androidreact-native run-ios (macOS only).IOS
Android
This is how you can add items to ScrollView using Loop. If you have any doubt or you want to share something about the topic you can comment below or contact us here. There will be more posts coming soon. Stay tuned!
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