Alert
Learn how to use the Alert API to show pop-up messages in React Native applications.
We'll cover the following...
The Alert
API is used to show essential information and warning messages to users. It can also be used to interrupt a user and ask them for a final confirmation of their decision before proceeding. For example, the Alert
API can be displayed to show a warning message if the user is about to delete a system-related file.
Usage
To implement and use the Alert
API, we first have to import it from the react-native
library.
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import { Alert } from 'react-native';
Once the Alert
API has been imported, we can use it inside our application using the alert
method of the Alert
API.
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import React from "react";import { SafeAreaView, Button, Alert } from "react-native";const App = () => {return (<SafeAreaView><Buttontitle = 'Click me'onPress={() => Alert.alert('Hello World')}/></SafeAreaView>);};export default App;
Customizing alerts
We ...