Hello Android developers! Whether you’re just getting started with Kotlin or looking to build a simple utility app, this project is a great place to begin. In this guide, we’ll walk you through the development of a Roman to Decimal Converter app using Android Studio and Kotlin.
This app is designed to help users quickly and easily convert Roman numerals into decimal numbers for better readability and understanding.
What is the Roman to Decimal Converter App?
The Roman to Decimal Converter is a basic Android app that allows users to input a Roman numeral and convert it to its decimal (numeric) equivalent with a single tap. It’s a handy tool for students, teachers, or anyone dealing with Roman numerals.
How It Works
- The user types a Roman numeral into a text field.
- They tap the “Convert” button.
- The app displays the decimal version of the Roman numeral in another text field.
App Layout Overview
Here’s a breakdown of the user interface and how the app is structured:
- Input Field: A simple `EditText` where the user can enter a Roman numeral.
- Convert Button: A `Button` labeled “Convert” that triggers the conversion process.
- Output Field: A `TextView` that displays the converted decimal number after the button is clicked.
This clean and minimal interface makes it perfect for beginners who want to practice XML layouts and Kotlin-based logic.
Prerequisites
Before you begin development, make sure you’re familiar with the following:
- Kotlin: The app is built using Kotlin, so a basic understanding of Kotlin syntax and structure is necessary.
- XML: XML is used to build the app’s UI, so understanding layout design in Android is helpful.
- Android Studio: You’ll need Android Studio installed on your machine to build and test the project. The built-in Android Emulator can be used to preview and test your app.
Download the Project
To get started quickly, download the complete source code for the project:
Android Kotlin Roman to Decimal Converter Project Code
How to Set Up the Project in Android Studio
Once you’ve downloaded the project files, follow these steps to open and run the app in Android Studio:
- Extract the ZIP file to a folder of your choice.
- Launch Android Studio.
- Click on File > Open.
- Navigate to the extracted folder and select it.
- Click OK to open the project.
That’s it! You’ve successfully opened the project in Android Studio.
What You’ll Learn
By building this app, you’ll gain hands-on experience with:
- Creating Android layouts using XML.
- Writing Kotlin logic to process user input.
- Implementing a simple string-based algorithm to convert Roman numerals to decimal numbers.
- Building a functional, user-friendly interface.
Summary
In this tutorial, we explored the development of a beginner-friendly Roman to Decimal Converter app using Kotlin in Android Studio. This project is perfect for those new to Android development and looking to get comfortable with building UI layouts and writing basic app logic.
With a clean interface and straightforward functionality, it’s a great project to boost your confidence in app development. We hope you enjoyed the process and found it helpful!
