Contents
Message for Empty FlatList
Here is an example of React Native Show Message for empty FlatList. As the topic name describes we will show the Message for the empty list. We can use this while we are making a dynamic list and the data is coming from the server. After loading the data from the server we can directly set the DataSource to the list by defining the props ListEmptyComponent
of FlatList
. This will show the error message which you have set for the empty list but if the DataSource has some value it will render the List.
Here is some line of code that we have used to show the message for the empty List.
<FlatList
data={dataSource}
keyExtractor={(item, index) => index.toString()}
ItemSeparatorComponent={ItemSeparatorView}
renderItem={ItemView}
//Message to show for the Empty list
ListEmptyComponent={EmptyListMessage}
/>
To start with this example
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
// React Native Show Message for empty FlatList
// https://aboutreact.com/react-native-show-message-for-empty-flatlist/
// import React in our code
import React, {useState} from 'react';
// import all the components we are going to use
import {SafeAreaView, StyleSheet, View, FlatList, Text} from 'react-native';
const App = () => {
const [dataSource, setDataSource] = useState([]);
const EmptyListMessage = ({item}) => {
return (
// Flat List Item
<Text
style={styles.emptyListStyle}
onPress={() => getItem(item)}>
No Data Found
</Text>
);
};
const ItemView = ({item}) => {
return (
// Flat List Item
<Text
style={styles.itemStyle}
onPress={() => getItem(item)}>
{item.id}
{'.'}
{item.title.toUpperCase()}
</Text>
);
};
const ItemSeparatorView = () => {
return (
// Flat List Item Separator
<View
style={{
height: 0.5,
width: '100%',
backgroundColor: '#C8C8C8',
}}
/>
);
};
const getItem = (item) => {
// Function for click on an item
alert('Id : ' + item.id + ' Title : ' + item.title);
};
return (
<SafeAreaView style={{flex: 1}}>
<FlatList
data={dataSource}
keyExtractor={(item, index) => index.toString()}
ItemSeparatorComponent={ItemSeparatorView}
renderItem={ItemView}
//Message to show for the Empty list
ListEmptyComponent={EmptyListMessage}
/>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
emptyListStyle: {
padding: 10,
fontSize: 18,
textAlign: 'center',
},
});
export default App;
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
Output in Online Emulator
This is how you can show the message for empty FlatList. 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. 🙂