Contents
Section List in React Native
This is an example to make Section List in React Native. Section List is a list of sections and headings. It is among the simple but mostly used components. This example will be helpful for you to understand how to use Section List in React Native. You can also check FlatList example for the Simple list.
To Import Section List in React Native Code
import {SectionList} from 'react-native'
Render Using
<SectionList
ItemSeparatorComponent={Separator View}
sections={Section Data}
renderSectionHeader={({ section }) => (Header View)}
renderItem={({ item }) => (Single Item View)}
keyExtractor={(item, index) => index}
/>
In this example, we will make a list of country names with the header of their initials. So let’s get started.
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
npm install -g react-native-cli
Run the following commands to create a new React Native project
react-native init ProjectName
If you want to start a new project with a specific React Native version, you can use the --version argument:
react-native init ProjectName --version X.XX.X
react-native init ProjectName --version react-native@next
This will make a project structure with an index file named App.js in your project directory.
Code
Open App.js in any code editor and replace the code with the following code
App.js
// Example to make Section List in React Native
// https://aboutreact.com/react-native-sectionlist/
// import React in our code
import React from 'react';
// import all the components we are going to use
import {
SafeAreaView,
StyleSheet,
View,
SectionList,
Text
} from 'react-native';
const App = () => {
let A = [
{id: '1', value: 'Afghanistan'},
{id: '2', value: 'Afghanistan'},
{id: '3', value: 'Afghanistan'},
];
let B = [
{id: '4', value: 'Benin'},
{id: '5', value: 'Bhutan'},
{id: '6', value: 'Bosnia'},
{id: '7', value: 'Botswana'},
{id: '8', value: 'Brazil'},
{id: '9', value: 'Brunei'},
{id: '10', value: 'Bulgaria'},
];
let C = [
{id: '11', value: 'Cambodia'},
{id: '12', value: 'Cameroon'},
{id: '13', value: 'Canada'},
{id: '14', value: 'Cabo'},
];
const FlatListItemSeparator = () => {
return (
//Item Separator
<View style={styles.listItemSeparatorStyle} />
);
};
return (
<SafeAreaView style={styles.container}>
<View style={styles.container}>
<SectionList
ItemSeparatorComponent={FlatListItemSeparator}
sections={[
{title: 'Section Head For Data A', data: A},
{title: 'Section Head For Data B', data: B},
{title: 'Section Head For Data C', data: C},
]}
renderSectionHeader={({section}) => (
<Text style={styles.sectionHeaderStyle}>
{section.title}
</Text>
)}
renderItem={({item}) => (
// Item for the FlatListItems
<Text
style={styles.sectionListItemStyle}
//Item Separator View
onPress={() => alert(JSON.stringify(item))}>
{item.value}
</Text>
)}
keyExtractor={(item, index) => index}
/>
</View>
</SafeAreaView>
);
};
export default App;
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
backgroundColor: 'white',
},
sectionHeaderStyle: {
backgroundColor: '#CDDC89',
fontSize: 20,
padding: 5,
color: '#fff',
},
sectionListItemStyle: {
fontSize: 15,
padding: 15,
color: '#000',
backgroundColor: '#F5F5F5',
},
listItemSeparatorStyle: {
height: 0.5,
width: '100%',
backgroundColor: '#C8C8C8',
},
});
To Run the React Native App
Open the terminal again and jump into your project using.
cd ProjectName
To run the project on an Android Virtual Device or on real debugging device
react-native run-android
or on the iOS Simulator by running (macOS only)
react-native run-ios
Output Screenshots
Android
IOS
Output in Online Emulator
This is how you can make a SectionList. If you have any doubts 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!
Hope you liked it. 🙂
hello sir, i have a question about sectionlist, how can we delete sectionlist item
Hello, Instead of providing var provide the data using the state and on click of it instead of showing an alert, delete the same record from the array and update the state so that it will update the list.
Have a look at How to Add or Remove FlatList Item with Animation example for hint.