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How to Detect a Click Outside a React Component?

Today we are going to see how you can detect a click outside of a React component. We will understand this topic by creating a custom React hook for it. For example, consider a case where you want a custom React hook for dropdown or dialog components that need to close when the user clicks outside of them. So, in this article, we’ll figure out the way to find out this outside click. Checkout the best way to use React hooks that would be helpful to meet the quality.

We can use the contains API to see if a target node is contained within another node.

That is, it will return true if the clicked component is within the component we are interested in and false otherwise.

A React component is a JSX-based UI building unit self-contained, reusable, and separated.

Web developers also use custom dropdowns to allow users to choose from a list of alternatives. As we have seen earlier the components like custom dropdown should be close while user clicks outside when it is open. To build an enterprise-level application or implement these solutions, you can easily consult or hire react developers from

Detecting an outside click of a functional component

Let’s make an HTML tooltip by using the InfoBox React functional component.
When the user hits a button, the tooltip appears, and when the user clicks outside of the tooltip component, it disappears. We will try to detect click outside the React component for the solution of this question.

To get started, we’ll construct a new React app. You can also use the code below to detect outside clicks in your existing React app.

import React, { useRef, useEffect } from "react";

import PropTypes from "prop-types";

function outSide(open) {

useEffect(() => {

function handleClickOutside(event) {

if (open.current && !open.current.contains( {

alert("Show alert Box!");



document.addEventListener("mousedown", handleClickOutside);

return () => {

document.removeEventListener("mousedown", handleClickOutside);


}, [open]);


function outSideClick(props) {

const wrapperRef = useRef(null);




; } outSideClick.propTypes = { children: PropTypes.element.isRequired }; export default outSideClick;


<button>Click Outside</button>

Click outside:

UseRef: The useRef hook allows the functional component to create a direct reference to the DOM element.


UseRef: The useRef hook allows the functional component to create a direct reference to the DOM element.

The useRef returns a mutable ref object. This object has a property called .current. The refContainer.current property keeps track of the value. The current property of the returned object is used to access these values.

UseEffect: React useEffect is a function that is executed for 3 different React component lifecycles which we will see below.
1. componentDidMount
2. componentDidUpdate
3. componentWillUnmount

1. componentDidMount:
We started fixing fetch calls before the class Component and even inside the render() method when we made made our first React component.
This had strange negative effects on the application, causing groan.

2. componentDidUpdate:
This React lifecycle is called immediately after a prop or state change has occurred.
It signifies we clicked inside our worried element if the element that triggered the mouse down event is either our concerned element or any element that is inside the concerned element.




So far, we have seen that how you can detect a click outside the the React components using the custom React hook. Also, we have learned to utilize UseEffet hook and UseRef hook while detecting the outside click by user.

Thank you for reading the article. Hope you enjoyed the Reading. Keep visiting Bosc Tech Labs for more insightful content.

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And as a spoiler, we shall say that the react native future is more than bright. These factors boldly say that React is here to stay and will provide developers with enhanced features to elevate their development process. 1. Popularity One of the important factors responsible for React Native future is its popularity. As discussed earlier, the popularity of React Native has been increasing for the past few years because it offers a whole new pipeline to work on building cross platform applications. Developers always look for a solution that can survive in the long run and, as it is used by many popular tech giants in their daily operations, hence it is safe to say that it will be serving a huge audience for a longer period. 2. Huge Community Support Another important factor for a bright react native future is the active developer’s community. It will support you whenever you run into any difficulties. React Native is used by millions of developers worldwide, and there is no doubt that its community may already be filled with experts and tech professionals that can answer your queries and even refer you for a job role. 3. Regular Upgradation One of the most promising aspects of React Native future is that this framework helps provide new updates to various applications so the users can enjoy the up to date features of an application. Sure, you might say that it’s nothing new since apps get frequent updates from the app store or play store. This is where things are different. Unlike any platform, React Native makes updates available through the app only, so no more relying on getting approval from the app store to publish the latest update. And as new technological enhancements polish the framework, the React Native new features will further boost developers’ development speed, which again will boost its popularity and the React Native future will become more promising. Is React Native worth it in 2022? React Native future heavily depends upon ease learning programming language, community and other tech giants support and technological enhancements. As we discussed earlier, React Native is one of the best frameworks if you want to build a cross platform mobile application. Considering it uses the most popular and well known programming language, it makes it easy for new as well as experienced developers to begin their journey of app development. Apart from this, considering the popularity of React Naive, it’s safe to say that you won’t regret adapting to its ecosystem, as it is heavily supported by its community and Facebook. Not to forget, it has all the necessary features and functionalities that you need for developing a mobile app. Moreover, as millions of developers use JavaScript in their daily life, chances are they will adapt to this framework, giving a huge boost to React Native future. But if you are a fresher who is just beginning your career in mobile development, then you may struggle a bit. Still, it will be worth it as you will enjoy developing apps using React Native. What Is the Future Scope of React Native? React Native has been used among developers for more than 6 years now, and certainly gained momentum because of its appreciation among tech giants. However, React Native future scope is promising and is considered as the framework ahead of time. In this digital age, we find every application that serves a particular service, such as food delivery, shopping, real estate, and many others. Before, we used to rely on stores and agents to get the items we wanted, but technology changed everything. React Native is boosting the entire IT ecosystem by making applications available at users’ fingertips. For this reason, even with the argument of React Native Future 2022, it is still the most robust tool that can transform the entire IT industry. Furthermore, React is working on a large-scale project known as the Fabric, which aims to enhance React Native by making it more responsive and flexible. It will also push the framework to adapt to a hybrid JavaScript based infrastructure. The Fabric project has already started enhancing React Native with its new threading model, async rendering capabilities, and simplified bridges. These and other changes will make React Native more agile and performative in the future, and hence the React Native future will be brighter than ever. Conclusion React Native future has been enhanced with its foundation of building cross platform mobile applications. Many tech giants rely on this framework to build and keep their mobile application up to date and this is one of the reasons behind its popularity. Although looking at its offerings, React Native provides the best features and functionalities to elevate the mobile app development process. The React Native future is still and will be promising because it is undergoing technological enhancements such as the Fabric project. Apart from this, as the number of mobile users increases, the need to develop applications will gain huge momentum, and indeed, React Native will shoulder this opportunity and provide users with the up to date applications.
How to Create Copyable Text Widget In Flutter?
Flutter is the free and open source framework developed by Google for building beautiful and multi-platform applications from a single codebase. In other words, it is Google’s portable UI toolkit for developing applications for desktop, web, and mobile from a single codebase. Organizations and developers worldwide use flutter because it works well with the existing code. Even though many exciting things are available in the flutter, developers often confront specific issues with this platform. One of the common issues in flutter is unable to copy the text content. By default, users cannot copy the text content of the flutter app. But, sometimes, users want to copy text content to the clipboard. This is where the text widget comes in. It allows the users to display text in the flutter application. It is also used to showcase the purpose of the component in the mobile app. When you long tap on the text widget, a tooltip will show up with a copy. Once you click on the copy, the text content will copy to the system clipboard. Keep reading to know how to make a copyable text widget in a flutter. What is a text widget in flutter? The text widget is one of the most widely accessed widgets in a flutter. You need to use the text widget when you want to display text in flutter applications. Using this widget, you can even display the text in a single line or multiple lines. It also helps you to customize the text with different properties such as font size, font weight, color, and much more. Here is the code used to customize the widget with different properties. You have another option to get a customized solution in Flutter app development by hiring a Flutter developers From Bosc Tech. import 'package:flutter/cupertino.dart'; import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( theme: ThemeData( appBarTheme: const AppBarTheme( color:, )), debugShowCheckedModeBanner: false, home: const FlutterTextWidget(), ); } } A guide to making copyable text widget in the flutter Since Flutter 1.9 has launched the widget for the same, you will find the list of properties in SelectableText. It enables the option selectAll, copy, paste, and cut. Here is how the code snippet looks! SelectableText("Lorem ipsum...") Whenever the text is selected, the copy context button will appear, and it will render the output. If you are worried about not showing the copy context button, you can use SnackBar Widget. It notifies the user about the copy. Here is the code snippet! final String _copy = "long press to copy"; @override Widget build(BuildContext context) { return Scaffold( key: key, appBar: AppBar( title: const Text("Copy"), centerTitle: true, ), body: Column(mainAxisAlignment:, children: < Widget>[ const TextSpan( children: [ TextSpan(text: "Copy me", style: TextStyle(color:, TextSpan(text: " and leave me"), ], ), ), const SizedBox( height: 20, ), const SelectableText( 'Hello Flutter Developer', cursorColor:, showCursor: true, toolbarOptions: ToolbarOptions( copy: true, selectAll: true, cut: false, paste: false), ), const SizedBox( height: 20, ), const SelectableText( 'This is a copyable text...', textAlign:, style: TextStyle(fontWeight: FontWeight.bold), ), const SizedBox( height: 20, ), GestureDetector( child: Text(_copy), onLongPress: () { Clipboard.setData(ClipboardData(text: _copy)); key.currentState?.showSnackBar(const SnackBar( content: Text("Copied to Clipboard"), )); }, ), const SizedBox( height: 20, ), const Padding( padding: EdgeInsets.symmetric(horizontal: 10), child: TextField(decoration: InputDecoration(hintText: "Paste Here")), ), ]), ); } Create copyable text in flutter using SelectableText class It is extremely easy to create copyable text in a flutter with the help of SelectableText class. Here is the code to follow! const SelectableText( 'This is a copyable text...', textAlign:, style: TextStyle(fontWeight: FontWeight.bold), ), Example of copyable text in flutter import 'package:flutter/material.dart'; void main() => runApp(App()); class App extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Copyable Text Example', home: FlutterExample(), ); } } class FlutterExample extends StatelessWidget { const FlutterExample({Key key}) : super(key: key); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar(title: Text('Flutter Copyable Text Example')), body: Center(child: SelectableText('You can copy me!'),) ); } } Use SelectableText to enable list of properties – copy, paste, cut and selectAll child: Center( child: SelectableText('Hello Flutter Developer', cursorColor:, showCursor: true, toolbarOptions: ToolbarOptions( copy: true, selectAll: true, cut: false, paste: false ), style: Theme.of(context).textTheme.body2) ), If you wish to have different styling for TextWidget, then you can use this code. TextSpan( children: [ TextSpan(text: "Copy me", style: TextStyle(color:, TextSpan(text: " and leave me"), ], ), ) Output Conclusion So, you will now understand how to make a copyable text widget in a flutter. If you still need support for flutter development, hire flutter developer without any hesitation. The experienced and skilled flutter will give you enough assistance in developing the Flutter project. They use the incredible resources from Flutter and help you to get the desired outcome.