A Veterans Guide to Transitioning Android Teams into Kotlin

Explore a veteran's guide to transitioning Android teams from Java to Kotlin in this conference talk from GOTO Copenhagen 2019. Gain insights into the motivations, benefits, and challenges of switching to Kotlin for JVM-based projects. Learn about incremental conversion strategies, best practices for Java interoperability, and the adoption of Kotlin-specific libraries and frameworks. Discover how Coroutines simplify existing architectures and how Kotlin enhances build management and testing codebases. Understand the improvements made possible by new language features and the lessons learned during the transition process. Benefit from the speakers' experience in fully embracing Kotlin for Android development and their exploration of Kotlin JS and Native.

Introductions
Background
IT silos
Its time to move on
What is Kotlin
Java vs Kotlin
Why Kotlin
The Good
Kotlin Training
JetBrains
Questions
What motivated us
Quotes from developers
Java
Reverse Jenga
Jetpack
Transition to Kotlin
Interrupt Story
Kotlin Language
Kotlin Example
Object Methods
DSLs
lambdas with receivers
with borrowed
lambda functions
apply
let
lazy delegate
weak references
weak reference delegate
delegation
Kotlin extensions
Kotlin extension example
Kotlin call and Android extensions
Kotlin Null Safety
Kotlin NullpointerException
Kotlin Expressions
Incremental Improvements
Non Nullable Fields
Trust Variables
Good tooling
Coroutines
Threading
Our Experience
Using Coroutines
PN Points
Documentation
How would we do it differently
Frameworks
Multiplatform libraries
Summary
Final Quote