react-native-screenshot-aware

React Native Screenshot Aware

Real-time screenshot detection for React Native apps

Features

• 🚀 Real-time screenshot detection
• 🔄 Cross-platform support (iOS & Android)
• 🎣 Easy-to-use React hooks
• ⚡ Optimized for performance
• 📱 Supports Android 14+ (API level 34+) and iOS 14+
• 🏗️ Supports the new architecture for React Native

Compatibility

• React Native <0.76, use version 1.2.2 or below 1.2.0 of this package (1.2.1 is buggy)
• React Native >=0.76, use version 1.3.0 or later

Installation

yarn add react-native-screenshot-aware

or

npm install react-native-screenshot-aware

Important Notes

Android

• Supports Android 14+ (API level 34 and above)
• Utilizes the latest Android API for efficient screenshot detection
• Leverages the new DETECT_SCREEN_CAPTURE permission introduced in Android 14
• Provides a more privacy-friendly and performant approach to screenshot detection

Expo

For Expo projects, you can use the Expo plugin in app.json

"plugins": [
  "react-native-screenshot-aware"
],

or add the permission manually to your app.json:

"android": {
  "permissions": ["android.permission.DETECT_SCREEN_CAPTURE"]
}

Bare RN

Permissions

To use the screenshot detection feature on Android, you need to add the following permission to your AndroidManifest.xml file:

<uses-permission android:name="android.permission.DETECT_SCREEN_CAPTURE" />

Note: Callbacks will never be triggered on devices running Android versions below 14. This is due to the reliance on the new DETECT_SCREEN_CAPTURE permission and APIs introduced in Android 14, which are not available in earlier versions.

Note: The decision to support only Android 14+ is based on the introduction of new, dedicated screenshot detection APIs. These APIs offer improved performance and respect user privacy better than previous methods. For more details, see the Android 14 screenshot detection documentation.

API Reference

useScreenshotAware(callback)

This hook allows you to detect when a screenshot is taken on the device. It takes a callback function as an argument, which will be executed whenever a screenshot event is detected.

Parameters

• callback (function): A function to be called when a screenshot is detected. This function does not take any arguments.

Example

import { useScreenshotAware } from 'react-native-screenshot-aware';

useScreenshotAware(() => {
  console.log('A screenshot was taken!');
});

addListener(callback)

This function allows you to add a listener for the screenshot event. It takes a callback function as an argument, which will be executed whenever a screenshot event is detected.

Parameters

• callback (function): A function to be called when a screenshot is detected. This function does not take any arguments.

Example

import ScreenshotAware from 'react-native-screenshot-aware';

useEffect(() => {
  const listener = ScreenshotAware.addListener(() => {
    console.log('A screenshot was taken!');
  });
  return () => {
    listener.remove();
  }
}, [])

removeAllListeners()

This function allows you to remove all listeners for the screenshot event.

Example

import ScreenshotAware from 'react-native-screenshot-aware';

function removeScreenshotListeners() {
  ScreenshotAware.removeAllListeners();
}

Jest Mocks

jest.mock('react-native-screenshot-aware', () => ({
  useScreenshotAware: jest.fn(),
  addListener: jest.fn().mockReturnValue({
    remove: jest.fn(),
  }),
  removeAllListeners: jest.fn(),
}));

Contributing

We welcome contributions! Please see our Contributing Guide for more details.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Support

If you like this project, please consider supporting it by giving it a ⭐️ on GitHub!

Acknowledgements

• create-react-native-library for the initial project setup