Kotlin Functions: Guide with Real-Life Android Examples (Part 1 of 6)

🌟Have you ever wondered how mobile apps on your Android device work seamlessly? Behind the scenes, there’s a lot of complex coding involved, but today, we’re going to demystify a small part of it — Kotlin functions.

What are Kotlin Functions?

A Kotlin function is like a recipe in a cookbook. It’s a set of instructions that tell your app what to do when a specific task needs to be performed. Just like a recipe, a function takes some ingredients (called parameters) and returns a result (output).

Real-Life Scenario: Sending a Text Message

Imagine you want to send a text message using your favorite messaging app. Behind the “Send” button, there’s a function responsible for sending your message. Let’s call it sendMessage.

Function Definition

In the Android app’s code, sendMessage might look something like this

fun sendMessage(contact: String, messageBody: String) {
    // Code to send the message goes here
}

1. fun: It's short for…