BMI Calculator Flutter App

A modern and intuitive BMI (Body Mass Index) calculator built with Flutter. This application provides a user-friendly interface to calculate BMI based on height, weight, age, and gender. It also offers personalized health advice based on the results.

✨ Features

• Gender Selection: Choose between male and female for more accurate calculations.
• Height and Weight Input: Interactive sliders and value adjusters for easy input.
• Age Input: Simple adjuster for age.
• BMI Calculation: Instant BMI calculation.
• Result Screen: A detailed result screen with the calculated BMI, category (underweight, normal, overweight, obese), and color-coded feedback.
• Health Advice: Personalized health tips based on the BMI result.
• Share Result: Functionality to share the BMI result as an image.
• Responsive Design: Adapts to different screen sizes using flutter_screenutil.
• Smooth Animations: Engaging animations for a better user experience.

📱 Screenshots

🎥 Demo Video

video_2025-08-13_22-15-46.mp4

🛠️ Tech Stack

• Framework: Flutter
• Language: Dart
• Key Packages:
  • flutter_screenutil: For responsive UI.
  • screenshot: To capture the result screen.
  • share_plus: To share the captured result.

🚀 Getting Started

Follow these instructions to get a copy of the project up and running on your local machine for development and testing purposes.

Prerequisites

You need to have the Flutter SDK installed on your machine.

• Flutter Installation Guide

Installation

1. Clone the repository:

   git clone https://github.com/your-username/bmi-calculator.git

   (Replace with your actual repository URL)

2. Navigate to the project directory:

   cd bmi

3. Install dependencies:

   flutter pub get

4. Run the app:

   flutter run

📂 Project Structure

The project follows a feature-first structure to keep the code organized and maintainable.

lib/
├── core/
│   └── app_colors.dart      # Centralized color palette
├── feature/
│   └── bmi/
│       ├── logic/
│       │   └── calculator.dart  # BMI calculation logic
│       ├── screens/
│       │   ├── bmi_input_screen.dart # Main input screen
│       │   └── bmi_result_screen.dart # Result display screen
│       └── widgets/             # Reusable widgets for the BMI feature
└── main.dart                # App entry point

🤝 Contributing

Contributions are what make the open-source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

📄 License

Distributed under the MIT License. See LICENSE for more information.