Using Clipboard, Sharing, and Linking APIs in React Native

Course: React Native Training

Topic: Using Clipboard, Sharing, and Linking APIs

Course Link: React Native Training at JustAcademy

Demo Link: Register for a Course Demo

Learning Level: Beginner to Intermediate

1. Introduction to Clipboard, Sharing, and Linking APIs

React Native provides APIs that help mobile applications interact with device features and other applications. Clipboard, Sharing, and Linking APIs allow users to copy text, share content through supported applications, and open websites or other resources from within an application.

These features improve usability because users can transfer information between applications without manually retyping content or navigating away to find a link.

1.1 What Is the Clipboard API?

The clipboard is a temporary system facility that stores copied or cut content. Users can copy text from one application and paste it into another. In React Native, clipboard functionality is commonly implemented using a compatible community package, such as @react-native-clipboard/clipboard, or the Clipboard API provided by Expo Clipboard.

Common clipboard operations include:

• Copying text, URLs, coupon codes, and reference numbers.
• Reading text from the clipboard when appropriate.
• Displaying confirmation after copying information.
• Helping users transfer information between applications.

1.2 What Is the Sharing API?

The Sharing API allows users to send text, links, and supported content to other applications. React Native includes the built-in Share API for sharing text and URLs through the operating system's sharing interface.

Common use cases include:

• Sharing course links with friends.
• Sharing product or article URLs.
• Sending referral codes.
• Sharing application invitations.
• Allowing users to share messages through compatible applications.

1.3 What Is the Linking API?

The Linking API allows a React Native application to open URLs and handle incoming links. It can open web pages, email links, telephone links, and other supported URL schemes. It can also help applications respond when users open supported deep links.

Common use cases include:

• Opening a website in the browser.
• Opening an email application with a prepared message.
• Opening a telephone link in the phone application.
• Navigating to a specific screen through a deep link.
• Handling links that launch the application from outside.

2. Learning Objectives

After completing this topic, learners should be able to:

• Understand clipboard, sharing, and linking functionality.
• Install and configure a clipboard package.
• Copy text to the system clipboard.
• Read clipboard text when required by the application.
• Display success and error messages for clipboard actions.
• Share text and URLs using React Native's Share API.
• Open websites and supported URL schemes with Linking.
• Check URL support and handle failures safely.
• Understand deep links and incoming URL events.
• Follow platform compatibility, security, and privacy best practices.

3. Setting Up a React Native Project

Clipboard functionality requires a suitable library. Sharing and linking functionality can usually be implemented with React Native's built-in APIs.

3.1 Installing Expo Clipboard

For an Expo project, install the compatible Clipboard package with:

npx expo install expo-clipboard

Expo installs a version compatible with the project's Expo SDK.

3.2 Installing the Community Clipboard Package

For a React Native project using the community clipboard library, run:

npm install @react-native-clipboard/clipboard

For iOS projects, follow the package's native setup instructions and run CocoaPods installation if required:

cd ios
pod install
cd ..

Native dependencies may require rebuilding the application. Installing a package alone may not update an already-installed native binary.

3.3 Importing the Built-In APIs

import { Share, Linking, Alert } from 'react-native';

The Share and Linking modules are part of React Native. Clipboard functionality is implemented separately using a compatible clipboard library.

4. Working with the Clipboard API

The clipboard makes it easier for users to copy and paste information. A React Native application can write text to the clipboard and, when necessary, read text from it using a supported library.

4.1 Copying Text with Expo Clipboard

import React from 'react';
import { View, Text, Button, Alert } from 'react-native';
import * as Clipboard from 'expo-clipboard';

export default function CopyTextExample() {
  const copyText = async () => {
    try {
      await Clipboard.setStringAsync('Hello from React Native!');
      Alert.alert('Success', 'Text copied to clipboard.');
    } catch (error) {
      Alert.alert('Error', 'Unable to copy the text.');
    }
  };

  return (
    <View style={{ padding: 20, gap: 12 }}>
      <Text>Clipboard Example</Text>
      <Button title="Copy Text" onPress={copyText} />
    </View>
  );
}

Explanation:

• expo-clipboard provides clipboard methods for supported Expo platforms.
• setStringAsync() writes text to the clipboard.
• await waits for the asynchronous operation to complete.
• Alert.alert() displays a confirmation or error message.
• The try...catch block handles failures without crashing the interface.

4.2 Copying Text with the Community Clipboard Package

If the project uses @react-native-clipboard/clipboard, the following example copies text using its API.

import React from 'react';
import { View, Button, Alert } from 'react-native';
import Clipboard from '@react-native-clipboard/clipboard';

export default function CopyUsingCommunityPackage() {
  const copyText = () => {
    try {
      Clipboard.setString('React Native Clipboard Example');
      Alert.alert('Copied', 'Text copied successfully.');
    } catch (error) {
      Alert.alert('Error', 'Unable to copy the text.');
    }
  };

  return (
    <View style={{ padding: 20 }}>
      <Button title="Copy Text" onPress={copyText} />
    </View>
  );
}

The community package's setString() method is synchronous in this API. Clipboard behavior may differ between platforms and package versions, so consult the documentation for the installed version.

4.3 Reading Text from the Clipboard

Applications may sometimes need to read text that a user has copied. Clipboard access should be purposeful because clipboard contents can contain sensitive information such as email addresses, temporary codes, or private messages.

import React, { useState } from 'react';
import { View, Text, Button, Alert } from 'react-native';
import * as Clipboard from 'expo-clipboard';

export default function ReadClipboardExample() {
  const [clipboardText, setClipboardText] = useState('');

  const readText = async () => {
    try {
      const text = await Clipboard.getStringAsync();
      setClipboardText(text);
    } catch (error) {
      Alert.alert('Error', 'Unable to read clipboard text.');
    }
  };

  return (
    <View style={{ padding: 20, gap: 12 }}>
      <Button title="Read Clipboard" onPress={readText} />
      <Text>Clipboard Content: {clipboardText || 'No text loaded'}</Text>
    </View>
  );
}

Important: Reading the clipboard may expose information that was copied from another application. Read it only when the user expects the action and the application genuinely needs the data. Avoid automatically reading clipboard contents on application startup.

4.4 Copying a Course URL

Copying a URL allows users to paste it into a browser, message, or another application.

import React from 'react';
import { View, Button, Alert } from 'react-native';
import * as Clipboard from 'expo-clipboard';

export default function CopyCourseLink() {
  const courseUrl =
    'https://www.justacademy.co/course-detail/react-native-training';

  const copyLink = async () => {
    try {
      await Clipboard.setStringAsync(courseUrl);
      Alert.alert('Link Copied', 'The course link is ready to paste.');
    } catch (error) {
      Alert.alert('Error', 'Unable to copy the course link.');
    }
  };

  return (
    <View style={{ padding: 20 }}>
      <Button title="Copy Course Link" onPress={copyLink} />
    </View>
  );
}

4.5 Clipboard Use Cases

5. Using the React Native Share API

The Share API opens the platform's sharing interface, allowing users to choose a compatible application or destination. The application provides the content, and the operating system presents the available sharing options.

5.1 Sharing Plain Text

import React from 'react';
import { View, Button, Share, Alert } from 'react-native';

export default function ShareTextExample() {
  const shareText = async () => {
    try {
      await Share.share({
        message: 'Hello! I am learning React Native.'
      });
    } catch (error) {
      Alert.alert('Error', 'Unable to share the text.');
    }
  };

  return (
    <View style={{ padding: 20 }}>
      <Button title="Share Text" onPress={shareText} />
    </View>
  );
}

Explanation:

• Share.share() opens the native sharing interface on supported platforms.
• The message property contains the text to share.
• The user chooses the destination application.
• The returned result can indicate whether the sharing interface was dismissed or the platform reported a share action, depending on the platform.

5.2 Sharing a Website URL

import React from 'react';
import { View, Button, Share, Alert } from 'react-native';

export default function ShareWebsite() {
  const shareWebsite = async () => {
    try {
      await Share.share({
        message: 'Visit JustAcademy: https://www.justacademy.co/',
        title: 'JustAcademy Website'
      });
    } catch (error) {
      Alert.alert('Error', 'Unable to share the website.');
    }
  };

  return (
    <View style={{ padding: 20 }}>
      <Button title="Share Website" onPress={shareWebsite} />
    </View>
  );
}

Sharing behavior varies by platform and target application. On Android, the message is generally the primary content. On iOS, the native share interface may handle message and URL content differently. Test the actual sharing result on supported devices.

5.3 Sharing a Course Invitation

import React from 'react';
import { View, Button, Share, Alert } from 'react-native';

export default function ShareCourse() {
  const shareCourse = async () => {
    const courseUrl =
      'https://www.justacademy.co/course-detail/react-native-training';

    const message =
      'Explore React Native Training at JustAcademy: ' + courseUrl;

    try {
      await Share.share({
        message,
        title: 'React Native Training'
      });
    } catch (error) {
      Alert.alert('Error', 'Unable to share the course.');
    }
  };

  return (
    <View style={{ padding: 20 }}>
      <Button title="Share Course" onPress={shareCourse} />
    </View>
  );
}

5.4 Handling the Share Result

The Share API returns a result whose fields and meaning can vary by platform. Do not assume that opening the share sheet guarantees that a message was successfully delivered.

import { Share, Alert } from 'react-native';

async function shareInformation() {
  try {
    const result = await Share.share({
      message: 'Learn React Native development.'
    });

    if (result.action === Share.sharedAction) {
      console.log('The platform reported a share action.');
    } else if (result.action === Share.dismissedAction) {
      console.log('The sharing interface was dismissed.');
    }
  } catch (error) {
    Alert.alert('Error', 'The sharing operation failed.');
  }
}

The exact result behavior depends on the platform. A returned share action does not necessarily confirm that the recipient received or read the content.

5.5 Share API vs. Clipboard API

6. Working with the Linking API

The Linking API connects your React Native application with external URLs and supported URL schemes. It can open websites, launch other applications when their URL schemes are supported, and help process links that open your application.

6.1 Opening a Website

import React from 'react';
import { View, Button, Linking, Alert } from 'react-native';

export default function OpenWebsite() {
  const openWebsite = async () => {
    const url = 'https://www.justacademy.co/';

    try {
      await Linking.openURL(url);
    } catch (error) {
      Alert.alert('Error', 'Unable to open the website.');
    }
  };

  return (
    <View style={{ padding: 20 }}>
      <Button title="Open Website" onPress={openWebsite} />
    </View>
  );
}

Linking.openURL() asks the operating system to open the URL using an appropriate handler. A browser usually handles an HTTPS URL, but the result depends on the device and its configuration.

6.2 Opening an Email Application

A mailto: URL can open a compatible email application and prefill a recipient or subject.

import { Linking, Alert } from 'react-native';

async function openEmail() {
  const url =
    'mailto:[email protected]?subject=React%20Native%20Enquiry';

  try {
    await Linking.openURL(url);
  } catch (error) {
    Alert.alert('Error', 'Unable to open an email application.');
  }
}

Replace the example address with the intended recipient. URL-encode spaces and other special characters in query parameters.

6.3 Opening a Telephone Link

import { Linking, Alert } from 'react-native';

async function openPhone() {
  const url = 'tel:+911234567890';

  try {
    await Linking.openURL(url);
  } catch (error) {
    Alert.alert('Error', 'Unable to open a phone application.');
  }
}

The number is illustrative. The URL generally opens a compatible phone interface when available; it does not guarantee that a call will be placed automatically.

6.4 Opening an SMS Link

import { Linking, Alert } from 'react-native';

async function openSMS() {
  const url = 'sms:+911234567890';

  try {
    await Linking.openURL(url);
  } catch (error) {
    Alert.alert('Error', 'Unable to open a messaging application.');
  }
}

SMS URL syntax and support can differ by platform. Test the behavior on Android and iOS, and do not assume that every device has a compatible messaging application.

6.5 Checking URL Support

The Linking.canOpenURL() method can be used to check whether the operating system reports a handler for a URL.

import { Linking, Alert } from 'react-native';

async function checkWebsite() {
  const url = 'https://www.justacademy.co/';

  try {
    const supported = await Linking.canOpenURL(url);

    if (supported) {
      await Linking.openURL(url);
    } else {
      Alert.alert('Not Supported', 'No handler is available for this URL.');
    }
  } catch (error) {
    Alert.alert('Error', 'Unable to check or open the URL.');
  }
}

Support checks are not a guarantee that a URL will open successfully. Operating-system configuration, installed applications, permissions, and URL-scheme restrictions can affect the result.

7. Understanding Deep Linking

Deep linking allows a URL to open a particular screen or piece of content in an application rather than merely opening the application's home screen. For example, a link could open a course detail screen directly.

7.1 Types of Deep Links

• Custom URL schemes: Use an application-specific scheme, such as myapp://course/123.
• Universal Links: HTTPS links configured to open an associated iOS application when supported.
• Android App Links: HTTPS links configured and verified to open the associated Android application.

Custom URL schemes are convenient but may conflict with another application using the same scheme. Verified HTTPS links provide a stronger association between a website and an application, but require additional platform and domain configuration.

7.2 Getting the Initial URL

The initial URL can be useful when the application is launched by a deep link.

import React, { useEffect, useState } from 'react';
import { View, Text, Linking } from 'react-native';

export default function InitialURLExample() {
  const [initialURL, setInitialURL] = useState('Checking URL...');

  useEffect(() => {
    let active = true;

    async function loadInitialURL() {
      try {
        const url = await Linking.getInitialURL();

        if (active) {
          setInitialURL(url ?? 'No initial URL');
        }
      } catch (error) {
        if (active) {
          setInitialURL('Unable to retrieve initial URL');
        }
      }
    }

    loadInitialURL();

    return () => {
      active = false;
    };
  }, []);

  return (
    <View style={{ padding: 20 }}>
      <Text>Initial URL: {initialURL}</Text>
    </View>
  );
}

Linking.getInitialURL() retrieves the URL that launched the application, if available. The example displays the URL for learning purposes; a production application should parse and validate it before navigating to any screen.

7.3 Listening for Incoming URL Events

An application may also receive a URL while it is already running. Use a Linking event listener to respond to incoming links.

import React, { useEffect, useState } from 'react';
import { View, Text, Linking } from 'react-native';

export default function IncomingURLExample() {
  const [incomingURL, setIncomingURL] = useState('No link received');

  useEffect(() => {
    const subscription = Linking.addEventListener(
      'url',
      (event) => {
        setIncomingURL(event.url);
      }
    );

    return () => subscription.remove();
  }, []);

  return (
    <View style={{ padding: 20 }}>
      <Text>Incoming URL: {incomingURL}</Text>
    </View>
  );
}

The listener is removed when the component unmounts. This avoids leaving an unnecessary event listener active after the component is no longer in use.

7.4 Configuring Deep Links

Deep linking requires configuration beyond JavaScript code. Depending on the platform and linking approach, configuration may include:

• Registering a custom URL scheme in the iOS application configuration.
• Configuring Android intent filters for the appropriate URL patterns.
• Adding the correct domain association files for verified HTTPS links.
• Configuring navigation so validated URLs open the intended screen.
• Testing links when the application is closed, in the background, and already open.

For applications using React Navigation, follow its linking configuration guide to map URLs to navigation routes.

8. Building a Reusable Clipboard, Sharing, and Linking Component

Reusable functions reduce duplicated code and make it easier to maintain consistent behavior across an application.

8.1 Example Utility Functions

import { Alert, Linking, Share } from 'react-native';
import * as Clipboard from 'expo-clipboard';

export async function copyText(text) {
  try {
    await Clipboard.setStringAsync(text);
    Alert.alert('Copied', 'Text copied to clipboard.');
    return true;
  } catch (error) {
    Alert.alert('Error', 'Unable to copy text.');
    return false;
  }
}

export async function shareText(message) {
  try {
    const result = await Share.share({ message });
    return result;
  } catch (error) {
    Alert.alert('Error', 'Unable to share content.');
    return null;
  }
}

export async function openExternalURL(url) {
  try {
    await Linking.openURL(url);
    return true;
  } catch (error) {
    Alert.alert('Error', 'Unable to open the link.');
    return false;
  }
}

These functions centralize common operations. In a larger application, consider passing an error-handling callback or using a shared notification component instead of showing alerts directly inside utility functions.

8.2 Using the Utility Functions

import React from 'react';
import { View, Button } from 'react-native';
import {
  copyText,
  shareText,
  openExternalURL
} from './deviceActions';

export default function ActionsScreen() {
  const courseURL =
    'https://www.justacademy.co/course-detail/react-native-training';

  return (
    <View style={{ padding: 20, gap: 12 }}>
      <Button
        title="Copy Course Link"
        onPress={() => copyText(courseURL)}
      />
      <Button
        title="Share Course"
        onPress={() => shareText('React Native Training: ' + courseURL)}
      />
      <Button
        title="Open Course"
        onPress={() => openExternalURL(courseURL)}
      />
    </View>
  );
}

9. Error Handling and Troubleshooting

Clipboard, sharing, and linking operations may fail when a native dependency is not configured, a URL is invalid, no compatible application is available, or the operating system restricts a particular action.

9.1 Debugging Checklist

• Confirm the package is installed and imported correctly.
• Verify that the project has been rebuilt after native dependency changes.
• Test clipboard operations with simple text before adding complex logic.
• Use valid, fully qualified URLs such as https://example.com.
• Wrap asynchronous operations in try...catch blocks.
• Test on Android and iOS because native behavior can differ.
• Test deep links with the app both open and closed.
• Avoid logging private clipboard contents or sensitive URL parameters.

10. Security and Privacy Best Practices

Clipboard and linking features can expose sensitive information or direct users to external destinations. Applications should use them responsibly.

10.1 Clipboard Security

• Do not read clipboard content automatically without a clear need.
• Read clipboard data only when the user expects the operation.
• Avoid copying passwords, authentication tokens, or confidential data unless essential.
• Do not send clipboard content to a server without a clear purpose and appropriate consent.
• Provide visible feedback when users copy information.

10.2 Safe URL Handling

• Validate external URLs before opening them.
• Allow only the URL schemes that the application actually supports.
• Use HTTPS for website links whenever possible.
• Do not blindly trust deep-link parameters received from outside the application.
• Validate identifiers and parameters before using them to navigate or perform actions.
• Never place passwords, private access tokens, or sensitive personal data in URLs.

10.3 Example of Basic URL Validation

function isAllowedWebsite(url) {
  try {
    const parsedURL = new URL(url);

    return (
      parsedURL.protocol === 'https:' &&
      parsedURL.hostname === 'www.justacademy.co'
    );
  } catch (error) {
    return false;
  }
}

This example allows HTTPS URLs whose hostname exactly matches www.justacademy.co. It is a basic validation example, not a complete security solution for every URL use case. If your runtime does not support the global URL constructor, use a compatible URL parser.

11. Platform Compatibility Considerations

Although React Native provides a common JavaScript interface, the operating systems can handle clipboard, sharing, and linking actions differently.

Do not assume that a URL scheme, sharing destination, or clipboard behavior works identically on all platforms. Test the workflows that matter to your application.

12. Performance and User Experience Best Practices

1. Keep actions clear: Use labels such as Copy Link, Share Course, and Open Website.
2. Provide feedback: Tell users when text has been copied, but avoid excessive notifications.
3. Handle failures: Provide a helpful fallback when a URL cannot be opened or an action fails.
4. Prevent duplicate operations: Disable buttons temporarily when repeated taps could trigger unwanted behavior.
5. Keep utility functions reusable: Separate clipboard, sharing, and URL-opening logic from presentation components.
6. Respect user intent: Open the share interface or clipboard action in response to a clear user action.
7. Validate external inputs: Treat incoming URLs and parameters as untrusted input.
8. Test on real devices: Simulators and emulators may not have the same applications or handlers as physical devices.
9. Check current documentation: API behavior and configuration requirements can change between React Native and package versions.

13. Practical Project: Course Link Actions App

Create a small React Native application that demonstrates clipboard, sharing, and linking functionality using a course URL.

13.1 Project Requirements

• Display the title of a React Native training course.
• Copy the course URL to the clipboard.
• Share the course URL through the native sharing interface.
• Open the course page in a browser or supported application.
• Provide clear success and error messages.
• Handle failed operations without crashing the application.

13.2 Install the Clipboard Dependency

npx expo install expo-clipboard

13.3 Complete Example

import React from 'react';
import {
  View,
  Text,
  Button,
  Share,
  Linking,
  Alert
} from 'react-native';
import * as Clipboard from 'expo-clipboard';

export default function CourseLinkActions() {
  const courseURL =
    'https://www.justacademy.co/course-detail/react-native-training';

  const copyLink = async () => {
    try {
      await Clipboard.setStringAsync(courseURL);
      Alert.alert('Success', 'Course link copied.');
    } catch (error) {
      Alert.alert('Error', 'Could not copy the course link.');
    }
  };

  const shareLink = async () => {
    try {
      await Share.share({
        message: 'Explore React Native Training at JustAcademy: ' + courseURL,
        title: 'React Native Training'
      });
    } catch (error) {
      Alert.alert('Error', 'Could not share the course link.');
    }
  };

  const openLink = async () => {
    try {
      await Linking.openURL(courseURL);
    } catch (error) {
      Alert.alert('Error', 'Could not open the course page.');
    }
  };

  return (
    <View style={{ flex: 1, padding: 24, justifyContent: 'center', gap: 16 }}>
      <Text style={{ fontSize: 22, fontWeight: 'bold' }}>
        React Native Training
      </Text>
      <Text>
        Copy, share, or open the course link using your device.
      </Text>
      <Button title="Copy Course Link" onPress={copyLink} />
      <Button title="Share Course Link" onPress={shareLink} />
      <Button title="Open Course Page" onPress={openLink} />
    </View>
  );
}

13.4 Expected Output

The application displays three buttons:

• Copy Course Link: Copies the course URL to the system clipboard and displays a confirmation message.
• Share Course Link: Opens the native sharing interface with the course link.
• Open Course Page: Opens the course URL through a supported external handler.

The result of a share action depends on the platform and the destination application. The app should not report that a recipient received the link merely because the sharing interface opened.

14. Practice Exercises

1. Create a screen with a text input and a button to copy the entered text.
2. Add a button that reads clipboard text after the user taps it.
3. Create a Copy Coupon Code feature that displays a confirmation message.
4. Build a Share Message button using the React Native Share API.
5. Share a course URL with a descriptive message.
6. Create an Open Website button using the Linking API.
7. Implement an email link with a prefilled subject.
8. Implement a telephone link and handle unsupported devices.
9. Use Linking.getInitialURL() to inspect an initial deep link.
10. Listen for incoming URL events and remove the listener when the component unmounts.
11. Validate external URLs before opening them.
12. Test clipboard, sharing, and linking features on Android and iOS.

15. Interview Questions and Answers

Q1. What is the Clipboard API?

Clipboard functionality allows an application to copy text to the system clipboard and, where supported, read text from it. React Native projects typically use a community package or Expo Clipboard.

Q2. Does React Native include a built-in Clipboard module?

Modern React Native projects generally use a separate library for clipboard functionality, such as @react-native-clipboard/clipboard or expo-clipboard.

Q3. How do you copy text using Expo Clipboard?

Import Expo Clipboard and call Clipboard.setStringAsync(text). Handle the asynchronous operation and provide suitable feedback to the user.

Q4. What is the Share API?

The Share API opens the native sharing interface so users can send text or links through compatible applications.

Q5. What is the difference between Share and Clipboard?

Clipboard stores copied content for later pasting, while Share allows users to choose another application or destination for the content.

Q6. What is the Linking API?

The Linking API opens supported URLs and helps applications handle incoming links.

Q7. What does Linking.openURL() do?

It asks the operating system to open a URL using a suitable handler, such as a browser, email application, or other application that supports the URL scheme.

Q8. What is Linking.canOpenURL()?

It checks whether the operating system reports a handler for a given URL. A successful check does not guarantee that the subsequent open operation will succeed.

Q9. What is deep linking?

Deep linking uses a URL to open a specific application or screen. Common approaches include custom URL schemes, Universal Links, and Android App Links.

Q10. What is the difference between an initial URL and an incoming URL event?

The initial URL is associated with launching the application, while a URL event can be received when a running application is opened through a link.

Q11. Why should clipboard access be handled carefully?

Clipboard content may contain private or sensitive information. Applications should read it only when needed and avoid collecting or transmitting its contents without an appropriate purpose.

Q12. Why should URL validation be used?

External URLs and deep-link parameters may be untrusted. Validation helps prevent unexpected destinations or unsafe navigation behavior.

Q13. Does the Share API confirm successful message delivery?

No. Opening or completing a platform share action does not necessarily confirm that the recipient received or read the content.

Q14. Why might Linking.openURL() fail?

The URL may be invalid, the URL scheme may be unsupported, no compatible handler may be available, or the operating system may restrict the operation.

Q15. How do you test these APIs?

Test on Android and iOS, verify native package setup, test supported and unsupported URL schemes, and check error handling, clipboard behavior, sharing results, and deep links.

16. Quick Revision Checklist

• Understand clipboard, sharing, and linking functionality.
• Install a compatible clipboard package.
• Use setStringAsync() with Expo Clipboard to copy text.
• Read clipboard content only when needed and with user awareness.
• Use Share.share() to open the native sharing interface.
• Use Linking.openURL() to open supported URLs.
• Use Linking.canOpenURL() when a support check is appropriate.
• Understand initial URLs and incoming URL events.
• Configure deep links at both the JavaScript and native levels.
• Handle errors and provide user-friendly feedback.
• Validate URLs and protect sensitive information.
• Test on Android and iOS devices.

17. Conclusion

Clipboard, Sharing, and Linking APIs are important tools for building useful React Native applications. Clipboard functionality helps users copy and paste information, the Share API provides access to native sharing interfaces, and the Linking API opens external URLs and supports incoming deep links.

By using suitable clipboard libraries, handling errors, validating URLs, respecting privacy, and testing on different platforms, developers can create reliable experiences that integrate smoothly with other applications and operating-system features.

18. Official Documentation and Learning Resources

• JustAcademy – React Native Training Course
• JustAcademy – Register for a Course Demo
• JustAcademy – Official Website
• React Native – Share API
• React Native – Linking API
• Expo – Clipboard Documentation
• React Native Clipboard – Official Repository
• React Navigation – Configuring Links