screenshot_prevention 0.0.3

A Flutter plugin to prevent screenshots on specific screens.

# Screenshot Prevention Plugin

A Flutter plugin to prevent screenshots on specific screens for Android. This plugin allows you to disable and enable screenshots dynamically in your Flutter app.

> **Note**: Currently, this plugin only supports Android. iOS support is not available yet.

---

## Features

- **Disable Screenshots**: Prevent users from taking screenshots or recording the screen on specific screens.
- **Enable Screenshots**: Re-enable screenshots and screen recording when needed.

---

## Installation

Add the following dependency to your `pubspec.yaml` file:

```yaml
dependencies:
  screenshot_prevention: ^0.0.1
```

Then, run:

flutter pub get

---

Usage

Import the Plugin

Add the import statement to your Dart file:

import 'package:screenshot_prevention/screenshot_prevention.dart';

Disable Screenshots

To disable screenshots on a specific screen, call the disableScreenshots method:

@override
void initState() {
  super.initState();
  ScreenshotPrevention.disableScreenshots(); // Disable screenshots
}

Enable Screenshots

To re-enable screenshots, call the enableScreenshots method:

@override
void dispose() {
  ScreenshotPrevention.enableScreenshots(); // Re-enable screenshots
  super.dispose();
}

---

Example

Here’s a complete example of how to use the plugin in a Flutter app:

import 'package:flutter/material.dart';
import 'package:screenshot_prevention/screenshot_prevention.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: SecureScreen(),
    );
  }
}

class SecureScreen extends StatefulWidget {
  @override
  _SecureScreenState createState() => _SecureScreenState();
}

class _SecureScreenState extends State<SecureScreen> {
  @override
  void initState() {
    super.initState();
    ScreenshotPrevention.disableScreenshots(); // Disable screenshots
  }

  @override
  void dispose() {
    ScreenshotPrevention.enableScreenshots(); // Re-enable screenshots
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Secure Screen"),
      ),
      body: Center(
        child: Text("Screenshots are disabled on this screen."),
      ),
    );
  }
}

---

Android Implementation

This plugin uses the FLAG_SECURE flag in Android to prevent screenshots and screen recording. The flag is dynamically added or removed from the activity window.

How It Works

• When disableScreenshots is called, the plugin adds the FLAG_SECURE flag to the current activity window.
• When enableScreenshots is called, the plugin removes the FLAG_SECURE flag.

---

Limitations

• Android Only: This plugin currently only supports Android. iOS support is not available yet.
• External Tools: The plugin cannot prevent screenshots taken by external tools or on rooted devices.

---

Contributing

Contributions are welcome! If you'd like to add iOS support or improve the plugin, feel free to open an issue or submit a pull request.

---

License

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

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### How to Use
1. Copy the above content.
2. Create a `README.md` file in the root of your plugin project.
3. Paste the content into the `README.md` file.
4. Save the file.

This `README.md` is ready for publishing on [pub.dev](https://pub.dev) or sharing with others. Let me know if you need further assistance! 🚀