prmiguel / flutter_simple_calculator

Flutter widget that provides simple calculator.

flutter_simple_calculator

Flutter widget that provides simple calculator. You can easily integrate a calculator to your apps.

Default style

With custom styles

SimpleCalculator(
  theme: const CalculatorThemeData(
    displayColor: Colors.black,
    displayStyle: const TextStyle(fontSize: 80, color: Colors.yellow),
    /*...*/
  ),
)

Localize

SimpleCalculator(
  numberFormat: NumberFormat.decimalPattern("fa_IR")
    ..maximumFractionDigits = 6,
)

Getting Started

To use this plugin, add flutter_simple_calculator as a dependency in your pubspec.yaml file.

dependencies:
 flutter_simple_calculator: 

Import the library in your file.

import 'package:flutter_simple_calculator/flutter_simple_calculator.dart';

See the example directory for a complete sample app using GridButton. Or use the GridButton like below.

SimpleCalculator(
  value: 123.45,
  hideExpression: true,
  onChanged: (key, value, expression) {
    /*...*/
  },
  theme: const CalculatorThemeData(
    displayColor: Colors.black,
    displayStyle: const TextStyle(fontSize: 80, color: Colors.yellow),
  ),
)