Open In App

Kotlin Android Tutorial

Last Updated : 15 Jun, 2024
Like Article

Kotlin is a cross-platform programming language that may be used as an alternative to Java for Android App Development.  Kotlin is an easy language so that you can create powerful applications immediately. Kotlin is much simpler for beginners to try as compared to Java, and this Kotlin Android Tutorial can also be used as an ‘entry point’ for Android App Development.

Kotlin Android Tutorial

What is Kotlin?

Kotlin is a modern, cross-platform programming language that was introduced by JetBrains in 2011 to develop the language and was released in 2016 in 2017 google announced Kotlin is an official language for Android development.

It is an alternative to Java for Android App Development. Kotlin is free, and it was developed under Apache 2.0, and the source code is on GitHub. It is compatible with Java, which means that Kotlin programs can support Java.

Recent Articles on Android! Learn Kotlin Programming Language

Why Use Kotlin?

Kotlin is fully compatible with Java and its programs are run in Kotlin, and It works on different platforms like Windows, Mac, Linux, Raspberry Pi, etc. Kotlin is concise and secure. Kotlin is easy to learn, especially if you already know Java.

It is free to use and has better performance and fast compilation time. Kotlin helps to extend the functionality of classes without touching their code, and It is tool-friendly so that you can use any Java IDE to run Kotlin.

Learn Kotlin for Android










Time and Date Picker


Advantage of Kotlin for Android Development

Choosing Kotlin for Android development offers several compelling benefits:

  • Concise Code: Kotlin lets you write less code to do the same things, making it easier to read and maintain.
  • Null Safety: Kotlin helps prevent common errors by making it harder to accidentally use null values, which can crash your app.
  • Interoperability with Java: You can use Kotlin and Java together in the same project. Kotlin works well with existing Java code, so you don’t have to rewrite everything.
  • Modern Features: Kotlin has many modern programming features that make development faster and more enjoyable, like extension functions and data classes.
  • Better Performance: Kotlin often results in better-performing apps due to its efficient syntax and features.
  • Official Support: Kotlin is officially supported by Google for Android development, ensuring good documentation and ongoing improvements.
  • Active Community: A growing community of developers means lots of resources, libraries, and tools to help you learn and solve problems.


this Kotlin Android Tutorial has taught you the basics of Android development with Kotlin. You’ve learned how to set up your tools, write clear and concise code, and build key features for your apps. Kotlin’s modern features and safety measures make coding easier and help prevent errors. Keep practicing and exploring more advanced topics to keep improving. Kotlin makes developing Android apps simpler and more fun.

Kotlin Android Tutorial – FAQs

What is Kotlin, and why should I use it for Android development?

Kotlin is a modern, statically-typed programming language that runs on the Java Virtual Machine (JVM). It’s officially supported by Google for Android development because of its concise syntax, null safety features, and seamless interoperability with Java, making it easier to write and maintain code.

How do I set up my development environment for Kotlin Android development?

To set up your development environment, download and install Android Studio, which comes with Kotlin support built-in. Create a new project and ensure Kotlin is selected as the default language. Follow the setup wizard to configure your project, and you’re ready to start coding.

What are some key differences between Kotlin and Java for Android development?

Kotlin offers more concise and expressive syntax, built-in null safety, and modern language features like extension functions and data classes. It also has coroutines for easier asynchronous programming. Java, while more verbose, is well-established with a large community and extensive libraries.

How do I handle null values in Kotlin to avoid null pointer exceptions?

Kotlin provides built-in null safety by distinguishing nullable and non-nullable types. Use the safe call operator (?.), the Elvis operator (?:), and the not-null assertion operator (!!) to handle null values safely and effectively in your code.

Can I use Kotlin in an existing Java-based Android project?

Yes, Kotlin is fully interoperable with Java, meaning you can add Kotlin code to an existing Java project without any issues. You can call Java code from Kotlin and vice versa, allowing you to gradually migrate your project to Kotlin if desired.

Previous Article
Next Article

Similar Reads

Creating a Anagram Checker Android App in Android Studio with Kotlin
An anagram of a word is another word that contains the same characters, only the order of characters can be different. For example, “abcd” and “dabc” are an anagram of each other. In this article, we will be building an Anagram Checker android app in Android Studio using Kotlin and XML. The app will check whether the entered words are anagrams of e
3 min read
Android - Create Group BarChart with Kotlin
Bar Charts in android are used to represent vast amounts of data in an easily readable format. We can display a single bar chart within our bar chart. But for making a comparison between two categories we can implement a group bar chart to display data for both categories side by side. In this article, we will be building a simple Group Bar Chart i
5 min read
Android Shared Element Transition with Kotlin
Shared element transition is seen in most of the applications which are used when the user navigates between two screens. This type of animation is seen when a user clicks on the items present in the list and navigates to a different screen. During these transitions, the animation which is displayed is called a shared element transition. In this ar
4 min read
Expandable RecyclerView in Android with Kotlin
In this article, we will get to know how to implement the expandable RecyclerView. In General, we will show the list of items in the listview but in some situations like if you want to show the sub-list items, then we have to use an expandable list. See the below image for a better understanding. Step by Step Implementation 1. If you observe the ab
7 min read
A Complete Guide to Learn Kotlin For Android App Development
Kotlin is a statically typed, cross-platform, general-purpose programming language for JVM developed by JetBrains. This is a language with type inference and fully interoperable with Java. Kotlin is concise and expressive programming as it reduces the boilerplate code. Since Google I/O 2019, Android development has been Kotlin-first. Kotlin is seam
8 min read
Android - Save ArrayList to SharedPreferences with Kotlin
SharedPreferences is local storage in android which is used to store data in the form of key and value pairs within the android devices. We can store data in the form of key and value pairs using Shared Preferences. In this article, we will take a look at How to Save Array List to SharedPreferences in Android using Kotlin. A sample video is given b
9 min read
Create an Android App that Displays List of All Trending Kotlin git-hub Repositories
Kotlin is a popular programming language that has gained much attention in recent years. It is known for its simplicity, conciseness, and compatibility with existing Java code. GitHub is a popular platform for hosting and sharing code, including Kotlin projects. This article will discuss how to build an application that shows a list of Kotlin GitHu
12 min read
Android - Line Graph View with Kotlin
Graphs are used in android applications to display vast amounts of data in an easily readable form. There are different types of graphs used such as BarGraph, GroupBar graph, point, and line graph to represent data. In this article, we will take a look at How to use Line Graph View in Android using Kotlin. A sample video is given below to get an id
3 min read
Android BottomSheet Example in Kotlin
The Bottom Sheet is seen in many of the applications such as Google Drive, Google Maps and most of the applications used the Bottom Sheet to display the data inside the application. In this article, we will take a look at implementing a Bottom Sheet in the Android app using Kotlin in Android Studio. What is Bottom Sheet? Bottom Sheet is a component
5 min read
How to create project in Android Studio using Kotlin
As we know Kotlin plugin is bundled with Android Studio above version 3.0, we can build android application using Kotlin language instead of Java. Below are the steps to create a new project in Kotlin programming Language. Step 1: In Welcome to Android Studio screen, select Start a new Android Studio Project. Step 2: Select Empty Activity and click
1 min read
Article Tags :