Kotlin for Android Developers

A 3-day course that covers the whole material needed for efficient and idiomatic Kotlin development in Android. It starts with basics and dives deep down into advanced Kotlin features and best practices.

On the workshop you will

Learn from lecture supported by slides

Solve coding challenges

Write an Android application in Kotlin

Solve puzzlers

During the workshop we cover:

  • Variety of Kotlin structures
  • How to use functions at different levels
  • How classes in Kotlin have changed and how it influences Android development
  • What an object expression and object declaration are
  • Functional programming features in Kotlin
  • How to use Kotlin Android Extensions and KTX
  • What exactly Data classes are
  • How to use Sealed classes
  • You will understand the Kotlin system in depth
  • How to define and use Extension functions
  • How to make an expressive and efficient collection processing in Kotlin
  • What the Scope functions are and how to use them (let, apply, run, also, with, takeIf, takeUnless)
  • Why inline classes are useful and important
  • How to write Kotlin code in an idiomatic way
  • What Kotlin code conventions and guidelines are
  • Suspending functions
  • Coroutine context and scope
  • Job, Dispatchers, CoroutineExceptionHandler, CoroutineName
  • Channel and Flow

Additionally, for an extra day, or if we manage to move faster:

  • How to improve compiler suggestions using Kotlin Contracts
  • What generic variance modifiers are, how to use them and what their limitations are
  • How to create and use Kotlin property and interface delegates
  • How to use and create Kotlin DSL

How long does it take?

This workshop lasts 3 days in the basic form or 4 days to cover the entire scope.


  • Professional experience in Android Development
  • A computer with Android Studio installed
Marcin Moskała

Marcin Moskała

Marcin Moskala is an experienced developer and Kotlin trainer. He is the founder of the Kt. Academy, an official JetBrains partner for Kotlin trainings, author of the books Effective Kotlin, Kotlin Coroutines and Android Development with Kotlin. He is also the main author of the biggest medium publication about Kotlin and a speaker invited to many programming conferences.

One of the first certified Kotlin training worldwide

You will be trained by an expert who is an official JetBrains' Kotlin training partner. The quality of his workshops was checked and certified by the creators of the Kotlin language itself.

JetBrains certified Kotlin Training


Choose this option if you need a workshop for your team or company. The basic price is 4500 EUR for the group for 3 days.

Reserve now

Choose this option if you need a workshop for yourself or for a small group of people. The basic price is 400 EUR per person for the whole workshop.

Reserve now

Our experts offer consultations for both companies and individuals. The price is set individually.

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