heart_rate 0.0.1+1

Flutter plugin to measure heart rate using smartphone camera for both Android and IOS

Heart Rate

A Flutter package to measure heart rate using the phone's camera and flash, supporting both Android and iOS.

⚠️ Disclaimer
This package is not a medical device and is not intended for medical diagnosis, treatment, or prevention of any disease.
Heart rate measurements provided by this package are for informational and educational purposes only and may not be accurate.
Do not rely on this package for medical decisions.

Features

• Real-time heart rate (BPM) measurement.
• Uses the phone's camera and flash/torch for detection.
• Simple HeartRateDialog widget for easy integration.
• Cross-platform support for Android and iOS.

Getting Started

Add this to your package's pubspec.yaml file:

dependencies:
  heart_rate: ^0.0.1 # Replace with the latest version

Then, run flutter pub get.

Platform Specific Setup

Android

Add the following permissions to your android/app/src/main/AndroidManifest.xml file:

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

iOS

Add the following key to your ios/Runner/Info.plist file:

<key>NSCameraUsageDescription</key>
<string>This app needs camera access to measure your heart rate.</string>

Usage

Import the package:

import 'package:heart_rate/heart_rate.dart';

Use the HeartRateDialog widget in your app. It provides a callback with the measured BPM.

class HeartRateExample extends StatefulWidget {
  const HeartRateExample({super.key});

  @override
  State<HeartRateExample> createState() => _HeartRateExampleState();
}

class _HeartRateExampleState extends State<HeartRateExample> {
  int _bpm = 0;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Heart Rate Example'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text('Your heart rate is:'),
            Text(
              '$_bpm BPM',
              style: Theme.of(context).textTheme.headlineMedium,
            ),
            const SizedBox(height: 20),
            HeartRateDialog(
              onBPM: (bpm) {
                setState(() {
                  _bpm = bpm;
                });
              },
            ),
          ],
        ),
      ),
    );
  }
}

For a complete example, see the /example directory.

Created by

Harshvardhan Mahavadiya
GitHub

Additional Information

• To file issues, please use the issue tracker.
• Contributions are welcome! Please feel free to submit a pull request.