Flutter Calculator App | Day 4 – Master Flutter in 21 Days: 21 Real-World Projects | LogicNLearn

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🚀 Welcome to Day 4 of the Master Flutter in 21 Days: 21 Real-World Projects series!

In this video, we will build a Calculator App using Flutter. This project will help you understand how to design interactive UI components and implement mathematical operations while managing application state effectively.

This series focuses on learning Flutter through real-world projects, helping you become confident in building practical mobile applications step by step.

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📱 What You Will Learn in This Video

✅ Designing calculator UI in Flutter
✅ Creating reusable buttons (Widgets)
✅ Handling user input & button interactions
✅ Performing arithmetic operations (+, −, ×, ÷)
✅ Managing state using setState()
✅ Updating UI dynamically based on calculations

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🎯 Why Build a Calculator App?

A calculator app teaches core Flutter concepts like event handling, logic implementation, and UI updates — skills required in almost every real-world application.

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🔥 About the Series — Master Flutter in 21 Days

In this playlist, we will build 21 real-world apps in 21 days, covering:

📱 UI Development
🔥 Backend & Firebase Integration
🔐 Authentication Systems
💬 Real-time Chat Applications
🛒 E-commerce Features
🚀 Final Social Media App Project

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💻 Source Code

👉 https://github.com/yash88990/21-days-...

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👨‍💻 Who Should Watch?

✔ Flutter Beginners
✔ Students preparing for internships & placements
✔ Developers building portfolio projects
✔ Anyone starting Mobile App Development

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👉 Subscribe to LogicNLearn and join the 21 Days Flutter Challenge 🚀

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🏷️ Hashtags

#Flutter #FlutterProjects #LearnFlutter #FlutterBeginner #AppDevelopment #FlutterRoadmap #21DaysChallenge #Dart #21Days21Projects #FlutterTutorial #FlutterCourse #ZeroToHero #CodingChallenge #MobileAppDevelopment #LogicNLearn #21DayChallenge #Programming #AndroidDev #iOSDev #CodingProject #SoftwareEngineering #TechEducation