https://github.com/basuru07/calculator-app
A modern Flutter calculator app with basic arithmetic operations, a sleek UI, and a history feature to track calculations. Perfect for learning Flutter basics and UI design!
https://github.com/basuru07/calculator-app
calculator-app dart flutter-apps mobile-app mobile-development
Last synced: 4 months ago
JSON representation
A modern Flutter calculator app with basic arithmetic operations, a sleek UI, and a history feature to track calculations. Perfect for learning Flutter basics and UI design!
- Host: GitHub
- URL: https://github.com/basuru07/calculator-app
- Owner: basuru07
- Created: 2024-12-19T11:08:36.000Z (10 months ago)
- Default Branch: main
- Last Pushed: 2024-12-21T10:12:00.000Z (10 months ago)
- Last Synced: 2025-05-18T07:15:13.750Z (5 months ago)
- Topics: calculator-app, dart, flutter-apps, mobile-app, mobile-development
- Language: C++
- Homepage:
- Size: 272 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Flutter Calculator App
A sleek, functional, and modern calculator app built with Flutter. This project showcases basic arithmetic operations and a history feature to track your calculations, all wrapped in a responsive and user-friendly UI.
## Features
- **Basic Operations:** Addition, subtraction, multiplication, and division.
- **Percentage & Toggle Sign:** Calculate percentages and switch between positive/negative values with ease.
- **History Drawer:** View your past calculations in a clean, accessible drawer.
- **Modern Design:** Circular buttons and intuitive layout for a great user experience.
- **Error Handling:** Displays "Error" for invalid mathematical expressions to prevent app crashes.
## Screenshots
| | |
|-----------------------------------------------------------------------------|------------------------------------------------------------------------------|
|  |  |
| | |
|-----------------------------------------------------------------------------|------------------------------------------------------------------------------|
|  |  |
## Installation
1. **Clone the Repository:**
```bash
https://github.com/basuru07/Calculator-App.git
```
2. **Install Dependencies:**
```bash
flutter pub get
```
3. **Run the App:**
```bash
flutter run
```
## Usage
- Tap buttons to perform calculations.
- View calculation history by tapping the **History Icon** in the top-right corner.
- Clear the current input using the **AC** button.
- Use **+/-** to toggle the sign of the current number.
- Perform complex calculations by chaining multiple operations.
## Code Highlights
- **Mathematical Evaluation:** Used the `math_expressions` package for safe and reliable parsing and evaluation of user input.
- **Dynamic Buttons:** Created a reusable `calcbutton` widget for a consistent design across the app.
- **State Management:** Managed user input and history efficiently using Flutter's `StatefulWidget`.
- **Responsive Design:** Ensured the UI works seamlessly across devices of varying screen sizes.
- **Drawer Navigation:** Integrated a drawer for displaying calculation history with dynamic updates.
## Dependencies
- [Flutter Framework Dependency](https://flutter.dev/)
- [Math_expressions Dependency](https://pub.dev/packages/math_expressions)