Joao Alves

Hey everyone, welcome to article number 5 in the series where we’re going to look into how to handle Parcelables in Kotlin. In the previous article we looked into data classes and today we’re going to see how we can have our data classes implementing the Parcelable interface.

The most basic use case for using Parcelable is when we need to pass a model from one activity to another. When passing primitive types is pretty straight forward but when we want to pass our own objects we need to do something to them:

Hi everyone, we already looked into some differences between Kotlin and Java syntaxes in the previous 2 articles of the series. Today we’ll look into Kotlin data classes and how concise they are compared to POJOs (Plain Old Java Objects) and how much boilerplate we can get rid of by moving to Kotlin data classes.

First, let’s take a look at a simple POJO representing a Person with 4 properties (name, age, email and phone):

Hey everyone, hope you had an amazing Christmas and an awesome new year’s eve. Welcome to article number 3 of the series and the first one of 2018. In the previous article we went through some of the Kotlin Base Syntax, today is part II of the syntax mini-series, and we’ll look into a few more examples of Kotlin syntax in action.

To recap, in the previous article we talked about Classes, Functions, Variables, Nullability and about the poor semi-colon operator almost not being needed anymore.

Hi everyone again, welcome to article number on 2 of the Kotlin Playground Series. There wasn’t that much code in the previous article but if you read it, you probably saw some new syntax that you’re not familiar with if coming from Java.

In this and following article I’ll cover some of Kotlin base syntax as I believe it’s important before we jump into other examples. But enough talk and let’s look at some Kotlin code.

Here we go everyone, first article in the series. Let’s start this Android Kotlin journey, and what better place than the starting point right? This article will cover the creation of a very simple Hello World Android Project with Kotlin.

This will be very similar to create a base Android project with Java just clicking a couple of different buttons and getting a Kotlin project instead in the end.

In order to use Kotlin properly, we should use Android Studio 3. It works with lower versions but you need to add a plugin. AS3 has full support and it’s now in stable release so you should probably use it anyway. You can download the latest version here: