How to create a calculator in flutter using dart packages?

In this blog, we are going to learn How to create a calculator in flutter full functionality. So, I already create a new project in flutter and open “lib/main.dart” in editor and import-

import ‘package:flutter/material.dart’;
import ‘package:flutter/rendering.dart’;

And using statelessWidget for title & theme color. After that using a statefulWidget and create an app like “MyHomePage();” his title name like “Calculator” and using Expand for equal space and fix between space on screen after that create a custom button and variable and assign that value integer and in Row of children’s custom button. After that create int and String for functionality and using if-else method Like that mention below-

Output-

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.