screenshot_guard 0.0.5

A Flutter plugin to protect your app from screenshots and screen recordings

Screenshot Guard

Screenshot Guard is a Flutter plugin that provides platform-specific functionality to detect and restrict screenshots or screen recording in your Flutter applications.

Features

• 🚫 Prevent users from taking screenshots.
• 📹 Detect and react to screen recording activity.
• 📱 Supports both Android and iOS platforms.
• 💻 Supports Windows desktop platform.

---

Installation

1. Add the package to your pubspec.yaml file:

   dependencies:
     screenshot_guard: ^<latest>
   

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2. Run the flutter pub get to fetch the package.

Usage

Import the Package

Add the following import statement at the top of your Dart file:

import 'package:screenshot_guard/screenshot_guard.dart';


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

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

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

class ScreenshotGuardExample extends StatefulWidget {
  @override
  _ScreenshotGuardExampleState createState() => _ScreenshotGuardExampleState();
}

class _ScreenshotGuardExampleState extends State<ScreenshotGuardExample> {
  bool isProtected = false;
  final _screenshotGuardPlugin = ScreenshotGuard();

  void toggleProtection() async {
    if (isProtected) {
      _screenshotGuardPlugin.enableSecureFlag(false);
    } else {
      _screenshotGuardPlugin.enableSecureFlag(true);
    }
    setState(() {
      isProtected = !isProtected;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Screenshot Guard Example')),
      body: Center(
        child: ElevatedButton(
          onPressed: toggleProtection,
          child: Text(isProtected ? 'Disable Protection' : 'Enable Protection'),
        ),
      ),
    );
  }
}

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Platform Specific Details

Android

• The plugin uses Android's FLAG_SECURE to prevent screenshots and screen recordings
• Ensure you have the necessary permissions in your AndroidManifest.xml.

IOS

• The plugin uses iOS system notifications to detect screenshot and screen recording activities.

Windows

• The plugin uses the Windows SetWindowDisplayAffinity API to prevent screen capture and video recording.
• The SetWindowDisplayAffinity API is specific to windows with the WS_OVERLAPPEDWINDOW style. Make sure your window meets this requirement.
• In case of failure, the error returned can be checked in the logs to diagnose issues related to display affinity.

API Reference

Methods

enableSecureFlag(bool enable)

• Description: Enables or disables the secure flag to control screenshot and screen recording
• Parameters: enable: A boolean (true to enable protection, false to disable it).
• Returns: A Future<void>

Contributions

Contributions are welcome! Feel free to create issues or submit pull requests to improve this plugin.