ReactJS Onsen UI AlertDialog Component

Last Updated : 07 Feb, 2023

ReactJS Onsen-UI is a popular front-end library with a set of React components that are designed to developing HTML5 hybrid and mobile web apps in a beautiful and efficient way. AlertDialog Component allows the user to display an alert dialog on top of the current screen. We can use the following approach in ReactJS to use the Onsen-UI AlertDialog Component.

AlertDialog Props:

onCancel: It is a callback function that is triggered only if isCancelable is true.
isOpen: It is used to indicate whether the dialog is open and shown.
isCancelable: It is used to specify whether the dialog is cancelable or not.
isDisabled: It is used to specify whether the dialog is disabled or not.
animation: It is used to denote the animation used when showing and hiding the dialog.
modifier: It is used to denote the appearance of the dialog.
maskColor: It is used to denote the color of the background mask.
animationOptions: It is used to specify the animation’s duration, delay, and timing.
onPreShow: It is a callback function that is triggered just before the alert dialog is displayed.
onPostShow: It is a callback function that is triggered just after the alert dialog is displayed.
onPreHide: It is a callback function that is triggered just before the alert dialog is hidden.
onPostHide: It is a callback function that is triggered just after the alert dialog is hidden.
onDeviceBackButton: It is a custom handler for device back button.

Preset Modifiers:

material: It is used to show the material design button.
rowfooter: It is used to horizontally align the footer buttons.

Creating React Application And Installing Module:

Step 1: Create a React application using the following command:
```
npx create-react-app foldername
```
Step 2: After creating your project folder i.e. foldername, move to it using the following command:
```
cd foldername
```
Step 3: After creating the ReactJS application, Install the required module using the following command:
```
npm install onsenui react-onsenui 
```

Project Structure: It will look like the following.

Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.

App.js

import React from 'react';
import 'onsenui/css/onsen-css-components.css';
import { AlertDialog, Button } from 'react-onsenui';

export default function App() {
    return (
        <div style={{
            display: 'block', width: 500, paddingLeft: 30
        }}>
            <h6>ReactJS Onsen-UI AlertDialog Component</h6>
            <AlertDialog isOpen={true}>
                <div className="alert-dialog-title">
                   Confirm!!
                </div>
                <div className="alert-dialog-content">
                    Do you sure want to exit?
                </div>
                <div className="alert-dialog-footer">
                    <Button className="alert-dialog-button">
                       YES
                    </Button>
                    <Button className="alert-dialog-button">
                       NO
                    </Button>
                </div>
            </AlertDialog>
        </div>
    );
}