Marco Gomiero

Introducing Kotlin Multiplatform in an existing project

What's the safest way to add Kotlin Multiplatform to an existing app? Start by sharing the small, boring code you have to write twice.

Introducing Kotlin Multiplatform in an existing project
#1about 3 minutes

Understanding the core principles of Kotlin Multiplatform

Kotlin Multiplatform enables sharing non-UI business logic across platforms like Android and iOS by compiling Kotlin to native code.

#2about 6 minutes

Setting up a new project with the monorepo structure

The Android Studio plugin simplifies new project setup by creating a monorepo with shared modules consumed differently by Android and iOS.

#3about 4 minutes

Choosing what code to share in an existing project

Start sharing code that is a single source of truth or is tedious to write twice, such as DTOs, common models, or analytics.

#4about 4 minutes

Publishing a shared Android library using Maven

Use the Maven Publish Gradle plugin to package the shared code as an AAR library and publish it to a repository for Android consumption.

#5about 10 minutes

Building and publishing an XCframework for iOS

Create a universal XCframework containing all necessary architectures and publish it to a private Cocoapods repository for use in an iOS project.

#6about 4 minutes

Managing concurrency and memory in Kotlin Native

The original Kotlin Native memory model requires freezing objects to share them across threads, but a new, more flexible memory model is coming.

#7about 4 minutes

A practical strategy for adopting Kotlin Multiplatform

Begin by sharing a small, low-risk feature to validate the entire deployment pipeline before expanding to more complex business logic.

#8about 12 minutes

Q&A on limitations, challenges, and testing

The main challenges are the initial setup and concurrency model, while UI testing remains platform-specific and team collaboration is key for success.

Related jobs
Jobs that call for the skills explored in this talk.

Matching moments

Building the frontend with Kotlin Multiplatform
05:55 MIN

Building the frontend with Kotlin Multiplatform

Location Verification without GPS?

Comparing Kotlin Multiplatform to other frameworks
07:33 MIN

Comparing Kotlin Multiplatform to other frameworks

Kotlin Multiplatform - True power of native code reuse

Key takeaways for starting with Kotlin Multiplatform
01:48 MIN

Key takeaways for starting with Kotlin Multiplatform

Kotlin Multiplatform - True power of native code reuse

Sharing business logic with Kotlin Multiplatform Mobile
01:41 MIN

Sharing business logic with Kotlin Multiplatform Mobile

Mobile at a Crossroads: The Declarative UI App Revolution

Introduction to Kotlin and its Java interoperability
02:58 MIN

Introduction to Kotlin and its Java interoperability

Route from Java to Kotlin

Exploring the benefits of multi-platform mobile development
06:46 MIN

Exploring the benefits of multi-platform mobile development

Kotlin Multiplatform - True power of native code reuse

Making the business case for adopting Kotlin
02:25 MIN

Making the business case for adopting Kotlin

Moving from Java to Kotlin

An introduction to Kotlin and its Java interoperability
02:48 MIN

An introduction to Kotlin and its Java interoperability

Moving from Java to Kotlin

Featured Partners

Related Videos

See all videos
Kotlin Multiplatform - True power of native code reuse35:10

Kotlin Multiplatform - True power of native code reuse

Petar Marijanović

Build Delightful Mobile Experiences with Kotlin, Realm, and Atlas Device Sync25:08

Build Delightful Mobile Experiences with Kotlin, Realm, and Atlas Device Sync

Timothy Marland

Route from Java to Kotlin57:09

Route from Java to Kotlin

Christian Woerz

Moving from Java to Kotlin28:22

Moving from Java to Kotlin

Urs Peter

Mobile at a Crossroads: The Declarative UI App Revolution44:09

Mobile at a Crossroads: The Declarative UI App Revolution

Peter Steinberger

Building a Friendly Kotlin SDK to Connect to JetBrains Space37:59

Building a Friendly Kotlin SDK to Connect to JetBrains Space

Maarten Balliauw

The best of both worlds: Combining Python and Kotlin for Machine Learning26:28

The best of both worlds: Combining Python and Kotlin for Machine Learning

Nils Kasseckert

Slip Through the Boundaries of Legacy Systems with Kotlin and Spring WebFlux52:24

Slip Through the Boundaries of Legacy Systems with Kotlin and Spring WebFlux

Lukas Georgieff & Alberto Gisbert

Related Articles

View all articles
CH
Chris Heilmann
WeAreDevelopers LIVE days are changing - get ready to take part
Starting with this week's Web Dev Day edition of WeAreDevelopers LIVE Days, we changed the the way we run these online conferences. The main differences are:Shorter talks (half an hour tops)More interaction in Q&AA tips and tricks "Did you know" sect...
WeAreDevelopers LIVE days are changing - get ready to take part
DC
Daniel Cranney
Why Attend a Developer Event?
Modern software engineering moves too fast for documentation alone. Attending a world-class event is about shifting from tactical execution to strategic leadership. Skill Diversification: Break out of your specific tech stack to see how the industry...
Why Attend a Developer Event?

From learning to earning

Jobs that call for the skills explored in this talk.