Don’t Repeat Yourself (DRY) Principle in Android: Kotlin and Jetpack Compose

Introduction

In software development, one of the most widely accepted principles is DRY, Don’t Repeat Yourself. This rule encourages developers to avoid repeating the same logic in different parts of the code. Instead, we should create reusable pieces that can be shared across the app. Following the DRY principle leads to cleaner, more readable, and easier-to-maintain code.

What DRY Means in Android Development

The DRY principle says:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

In simple terms, it means you should avoid copying the same code in multiple places. Instead, pull it out into a reusable function, component, or class.

Applying DRY in your Android app can:

• Reduce bugs by having one place to update shared logic
• Make your codebase easier to maintain by reducing repetition
• Improve readability by giving names to complex or repeated patterns
• Simplify testing by isolating logic into smaller, focused units

DRY with Kotlin and Jetpack Compose