Kotlin Edu
Android Kotlin guides
Update on Kotlin for Android - viele gute Links im Artikel

How “Effective Java” may have influenced the design of Kotlin – Part 1, Part 2, Part 3

Typical Kotlin - an article about Kotlin's type system

Test-Driven Development Tutorial for Android: Getting Started - tutorial about TDD with Kotlin

• Kotlinlang.org: The official Kotlin website. Includes everything from a guide to basic syntax to the Kotlin standard library reference.

• Official Kotlin tour

• Android Basics with Compose

Kotlin Koans Online: A collection of exercises in an online IDE to help you learn the Kotlin syntax.

• Elements of Kotlin by Mark Murphy
  • Elements of Kotlin - my conspectus of this book

• Kotlin Playground: Getting Started
• Kotlin Core track by JetBrains Academy

Udacity course: “Kotlin Bootcamp for Programmers”. Essentials of the Kotlin programming language from Kotlin experts at Google. For programmers coming from Java or other object- oriented languages.

Developing Android Apps with Kotlin and Advanced Android with Kotlin video-based courses by Google at Udacity

Android Kotlin Fundamentals, Advanced Android in Kotlin and Kotlin Bootcamp at Codelabs

O’Reilly course: An 8-hour Kotlin course, “Introduction to Kotlin Programming,” by Hadi Hariri, a developer at JetBrains. Requires subscription; 10-day free trial available.

Treehouse course: “Kotlin for Java Developers” teaches Kotlin with an emphasis on Android. Requires subscription; 7-day free trial available.

@kotlin: The official Kotlin Twitter account.

Kotlin Community: A list of offline events and groups from kotlinlang.org.

Kotlin Slack: A Slack chat community for Kotlin users.

Talking Kotlin: A bi-monthly podcast on Kotlin and more.

• Cancellation in Kotlin Coroutines
  • Marcin Moskała writes about one of the most important mechanisms of Kotlin Coroutines for Android developers, cancellation

• Inside Kotlin Coroutines: State Machines, Continuations, and Structured Concurrency
  • A deep dive into the Finite-State-Machine (FSM) transformation that powers Kotlin Coroutines, from Compiler Mechanics to Structured Concurrency
    • Coroutine Suspension Mechanics - Ioannis Anifantakis & Andrea Della Porta | droidcon London 2025
      • Related video from droidcon London 2025

• Understanding the internal of Flow, StateFlow, and SharedFlow

• Kotlin Roundup: KotlinConf 2024 Keynote Highlights
  • Celebrating Kotlin 2.0: fast, smart, and multiplatform
  • Kotlin language features in 2.0 and beyond
  • Android support for Kotlin Multiplatform
  • Compose Multiplatform for iOS goes Beta
  • Amper Update – Standalone build tool, new IDE features, and more
  • Uber joins the Kotlin Foundation
  • The Kotlin Foundation Grants Program continues in 2024
  • Kotlin adoption in global companies
  • AI-friendly programming languages: the Kotlin story

• The Ultimate Guide to Successfully Adopting Kotlin in a Java-Dominated Environment by Urs Peter (JetBrains)

• From Junior to Master in Kotlin — 1 (Basic Syntax)
• From Junior to Master in Kotlin — 2 (Safe null)
• Kotlin SharedFlow or: How I learned to stop using RxJava and love the Flow

• Code sources for Kotlin Essentials book by Marcin Moskala

• 50 ways to run some Kotlin code by Maia Grotepass (maiatoday)
  • What is the quickest path to messing with a snippet of Kotlin code? Maia Grotepass shares some options.

• Mastering Kotlin in 7 Steps with Sarp Remzi Aksu (video)

• Beyond The Success Of Kotlin / The Documentary by EngX - an amazing video about how Kotlin was created and how it come to success

• Hidden Gems of the Kotlin Standard Library - List by Donovan LaDuke
  • orEmpty()
  • filterIsInstance()
  • distinctBy()
  • chunked()
  • random()

• Fun with Function Types in Kotlin (video)
• FULL Guide to Kotlin's Inline Keyword (inline, crossinline & noinline) by Philipp Lackner (video)

• Kotlin Under the Hood: Exploring Constructors and Init Blocks
• How to Write Cleaner Kotlin Code with These 5 Powerful Functions (video)

• Kotlin companion object explained

• Understanding SOLID Principles with Kotlin Examples
  • 1. Single Responsibility Principle
    • one class - one responsibility
  • 2. Open/Closed Principle
    • open for extension, but closed for modification
  • 3. Liskov Substitution Principle
    • objects if superclass should be replaceable by objects of a subclass
  • 4. Interface Segregation Principle
    • clients should not be forced to depend on methods they don't use (=no bloated interfaces)
  • 5. Dependency Inversion Principle
    • high-level modules should not depend on low level modules. Both should depend on abstractions