https://github.com/chathumiamarasinghe/calculator_app

A Flutter-based calculator app designed for seamless cross-platform functionality, supporting Android, iOS, web, and desktop environments
https://github.com/chathumiamarasinghe/calculator_app

android-app calculator-app cross-platform dart flutter ios-app mobile-app xcode

Last synced: 12 months ago
JSON representation

A Flutter-based calculator app designed for seamless cross-platform functionality, supporting Android, iOS, web, and desktop environments

Host: GitHub
URL: https://github.com/chathumiamarasinghe/calculator_app
Owner: chathumiamarasinghe
License: mit
Created: 2024-11-20T07:01:11.000Z (over 1 year ago)
Default Branch: master
Last Pushed: 2024-12-24T06:52:14.000Z (about 1 year ago)
Last Synced: 2025-02-15T16:47:42.670Z (about 1 year ago)
Topics: android-app, calculator-app, cross-platform, dart, flutter, ios-app, mobile-app, xcode
Language: Dart
Homepage:
Size: 36.1 KB
Stars: 1
Watchers: 1
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

Awesome Lists containing this project

README

# Calculator App

A modern and feature-rich calculator app built using **Flutter**. This app provides a sleek and intuitive interface for performing various mathematical operations.

## Features

- **Basic Operations**: Addition, Subtraction, Multiplication, and Division.
- **Advanced Operations**:
- Calculate percentages.
- Compute square roots.
- **Responsive Design**: Adapts seamlessly to different screen sizes.
- **Calculation History**: View your previous calculations.
- **Error Handling**: Clear and user-friendly error messages for invalid operations (e.g., division by zero).

## Technologies Used

- **Language**: Dart
- **Framework**: Flutter
- **UI Components**: Material Design

## Getting Started

### Prerequisites

1. Install Flutter SDK from the [official site](https://flutter.dev/docs/get-started/install).
2. Ensure you have an emulator or a physical device set up for development.

### Installation

1. **Clone the repository:**
```bash
git clone https://github.com/chathumiamarasinghe/Calculator_App.git
2. **Navigate to the project directory:**
```bash
cd calculator-app
```
3. **Run the app on an emulator or physical device:**
```bash
flutter run
```
4. **How to Use**

- Launch the app.
- Perform calculations by tapping the buttons for numbers and operations.
- Use the "√" button for square root and "%" for percentage.
- Tap the history icon (top-right) to view past calculations.
- Use "C" to clear the current input and "⌫" to delete the last digit or operator.

5. **Code Overview**

- The core functionality of the app is in the CalculatorScreen class, which manages:

- UI Rendering: Builds a responsive calculator interface.
- State Management: Handles user input, operations, and results dynamically.
- Error Handling: Displays error dialogs for invalid inputs.

## Videos & Screenshots

### Feature Demo Video - ios video

[![Watch the video](https://img.youtube.com/vi/pMAypgSiX2c/0.jpg)](https://youtu.be/pMAypgSiX2c?si=LlZOh8dwJUr-t2jk)

### Feature Demo Video - Android video

[![Watch the short video](https://img.youtube.com/vi/2AJ1hbyLyNM/0.jpg)](https://youtube.com/shorts/2AJ1hbyLyNM?si=GOkP8KaXszKtrFiV)

### Home Screen