Here is the updated README.md and LICENSE file for your biometric_auth_flutter package, with the improvements applied:

✅ Updated README.md

# biometric_auth_flutter

[![pub package](https://img.shields.io/pub/v/biometric_auth_flutter.svg)](https://pub.dev/packages/biometric_auth_flutter)

A simple Flutter plugin that enables biometric authentication on Android using method channels. Supports fingerprint, face unlock, and device credentials like PIN or pattern.

---

## ✨ Features

- 🔐 Authenticate users using biometrics or device credentials.
- 💡 Native Android biometric prompt.
- ⚙️ Simple and lightweight API.
- 📱 Android platform supported.

---

## 🚀 Getting Started

### 1. Add dependency

In your `pubspec.yaml`:

```yaml
dependencies:
  biometric_auth_flutter: ^0.0.8

2. Import it

import 'package:biometric_auth_flutter/biometric_auth_flutter.dart';

3. Use it

final isAuthenticated = await BiometricAuthFlutter().authenticate();

if (isAuthenticated) {
  // Navigate to secure area
} else {
  // Show fallback or error
}

📦 Platform Support

Platform Supported
Android ✅ YES
iOS ❌ Not yet

iOS support will be added in a future release. PRs are welcome!

🧪 Example

Use the plugin in your authentication screen like this:

ElevatedButton(
  onPressed: () async {
    bool auth = await BiometricAuthFlutter().authenticate();
    if (auth) {
      // proceed
    } else {
      // handle failure
    }
  },
  child: Text("Login with Biometrics"),
);

🧠 How It Works

This plugin uses AndroidX BiometricPrompt APIs under the hood and communicates with Flutter via MethodChannel.

🛠️ Development

Run tests

flutter test

Folder Structure

lib/
  biometric_auth_flutter.dart                  # Public API
  src/biometric_auth_flutter_method_channel.dart
  src/biometric_auth_flutter_platform_interface.dart

android/
  ...                                          # Kotlin native code

📄 License

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

👤 Author

Muhaimin Pallikkal 📍 Kondotty, Kerala, India 🔗 GitHub 📧 muhaiminpallikkal@gmail.com

💡 Contributions

Feel free to open issues or submit PRs if you'd like to contribute. Thank you for helping improve the plugin! 🙌

🗒️ Changelog

See CHANGELOG.md for version history and changes.


---

### 📄 LICENSE (MIT License)

```text
MIT License

Copyright (c) 2025 Muhaimin

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
in the Software without restriction, including without limitation the rights  
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell  
copies of the Software, and to permit persons to whom the Software is  
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in  
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,  
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE  
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER  
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,  
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN  
THE SOFTWARE.

Libraries

biometric_auth_flutter
biometric_auth_flutter_method_channel
biometric_auth_flutter_platform_interface