Finger Picker App

A multi-platform Flutter app that helps choose a finger between those tracked on the screen. Perfect for making quick group decisions!

Features

• Multi-touch tracking: Each finger that touches the screen gets a unique colored circle
• Animated circles: Smooth entry animations and real-time position tracking
• 5-second countdown: Timer starts when 2 or more fingers are detected
• Random selection: One finger is randomly chosen when the timer expires
• Winner highlight: The selected finger's color expands to fill the screen
• Quick reset: Tap anywhere after selection to start a new round

How to Use

1. Launch the app
2. Have multiple people touch the screen simultaneously
3. Watch the countdown timer (appears when 2+ fingers are detected)
4. See the winner announcement with the selected finger highlighted
5. Tap anywhere to start a new round

Technical Details

• Framework: Flutter 3.10+
• State Management: Provider pattern
• Platform Support: Android (API 21+) and iOS
• Performance: 60+ FPS animations with efficient custom painting

Getting Started

Prerequisites

• Flutter SDK 3.10.0 or higher
• Dart SDK 3.0.0 or higher
• Android Studio / Xcode for mobile development

Installation

1. Clone this repository
2. Install dependencies:

   flutter pub get

3. Run the app:

   flutter run

Building for Release

Android:

flutter build apk --release

iOS:

flutter build ios --release

Project Structure

lib/
├── main.dart                 # App entry point
├── screens/
│   └── game_screen.dart     # Main game interface
├── services/
│   └── game_logic.dart      # Core game logic and state
├── models/
│   └── finger_data.dart     # Finger tracking data model
├── widgets/
│   ├── finger_circle.dart   # Custom circle painter
│   └── countdown_timer.dart # Timer display widget
└── utils/
    └── color_generator.dart # Color management utility

Performance Optimizations

• Efficient custom painting for smooth circle rendering
• Optimized state management to minimize rebuilds
• Smooth 60+ FPS animations
• Memory-efficient finger tracking

Contributing

Feel free to submit issues and pull requests to improve the app!

License

This project is open source and available under the MIT License.