🌡️ Temperature Conversion App

🔗 GitHub Repository

Here’s the link to my project repository: 👉 https://github.com/MariamIssah/Mobile-Development.git

🎥 Demo Video

You can watch my full demo video here: 👉 (Watch the Demo Video Here)

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📱 About the App

This is a simple Temperature Conversion App I built using Flutter. It allows users to convert temperatures between Celsius and Fahrenheit. I focused on using interactive widgets, maintaining clean state management, and providing a good user experience — including conversion history and responsive layout.

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🎯 App Features

• 🔁 Convert between Celsius and Fahrenheit.
• ✍️ User input through a TextField.
• 🔘 Radio buttons for selecting conversion direction.
• 🎯 Accurate results rounded to two decimal places.
• 📜 History of all conversions during the session.
• 🔄 Works in both portrait and landscape orientation.

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🧩 Widgets I Used and Why

Widget	Purpose
StatefulWidget	To manage dynamic updates to the UI.
TextField	For entering temperature values.
RadioListTile	To allow users to choose conversion direction.
ElevatedButton	To trigger the conversion function.
Text	For displaying results and conversion history.
Column, Row, Padding, Expanded, ScrollView	For clean and responsive layout.
setState()	To refresh UI when input or selection changes.

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🧠 Conversion Logic

I used basic formulas to convert between the two temperature units:

• Celsius → Fahrenheit: (C × 9/5) + 32

• Fahrenheit → Celsius: (F - 32) × 5/9

Each time a user presses the "Convert" button, the app performs the selected conversion and stores the result in a list shown as history.

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🧹 Code Quality

I made sure my code is:

• Well-formatted with consistent indentation and spacing.
• Clear, with meaningful variable and function names.
• Modular and separated into logical components.
• Commented to explain key sections and logic.
• Documented with this detailed README.

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🧪 Sample Conversion History

C to F: 25.0 => 77.00
F to C: 98.6 => 37.00
F to C: 32 => 0.00

Newest conversion appears at the top.

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✅ How I Met the Rubric Criteria

Criteria	What I Did
Widgets Usage	I used a mix of input, display, and selection widgets with full state management.
Code Quality & Documentation	Clean code, clear variable names, inline comments, and this README.
Effort	Added history tracking, rounded output, and input validation.
Functionality	Both conversion directions work as expected with proper rounding.
UI Design & Creativity	Responsive layout, clean spacing, intuitive interaction, and consistent across orientations.

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📱 Tested Device

• ✅ Physical Android Device: Tecno Spark 10

I made sure to run and test the app on a real device to meet the course requirement. The app functions well and smoothly on my Tecno Spark 10.

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🚀 How to Run It Locally

Requirements:

• Flutter SDK
• Dart SDK
• Emulator or Android Device

Steps:

git clone https://github.com/MariamIssah/Mobile-Development.git
cd Mobile-Development
flutter pub get
flutter run

📄 Submission

I have submitted a PDF file:

It includes:

• ✅ GitHub link
• ✅ Demo video link
• ✅ Overview of the project and how I met all rubric requirements

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👩🏽‍💻 About Me

Hi, I’m Mariam Awini Issah, the creator of this app. You can contact me at m.issah1@alustudent.com.