Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Kotlin Multiplatform
Search
Kevin Galligan
August 16, 2018
Technology
1
220
Kotlin Multiplatform
Kotlin Multiplatform iOS development
Kevin Galligan
August 16, 2018
Tweet
Share
More Decks by Kevin Galligan
See All by Kevin Galligan
KotlinConf 2023: Kotlin Mobile Multiplatform for Teams
kpgalligan
4
530
SDK Design and Publishing For Kotlin Multiplatform Mobile
kpgalligan
2
450
KMP Binky Only
kpgalligan
1
220
Troubled Waters: Bridging platform-native SDKs with Kotlin Multiplatform
kpgalligan
3
280
KMM Kickstart For Android Developers
kpgalligan
2
240
Kotlin Multiplatform in Production
kpgalligan
4
440
Kotlin/Native Concurrency for Mobile Multiplatform
kpgalligan
2
680
Kotlin Native Concurrency Explained (Kotlinconf 2019)
kpgalligan
3
720
Kotlin Multiplatform Intro
kpgalligan
2
10k
Other Decks in Technology
See All in Technology
Jaws-ug名古屋_LT資料_20250829
azoo2024
3
210
microCMS 最新リリース情報(microCMS Meetup 2025)
microcms
0
390
DeNA での思い出 / Memories at DeNA
orgachem
PRO
6
1.9k
allow_retry と Arel.sql / allow_retry and Arel.sql
euglena1215
0
140
つくって納得、つかって実感! 大規模言語モデルことはじめ
recruitengineers
PRO
32
12k
ヘブンバーンズレッドにおける、世界観を活かしたミニゲーム企画の作り方
gree_tech
PRO
0
420
実運用で考える PGO
kworkdev
PRO
0
130
見てわかるテスト駆動開発
recruitengineers
PRO
6
2.4k
スプリントレトロスペクティブはチーム観察の宝庫? 〜チームの衝突レベルに合わせたアプローチ仮説!〜
electricsatie
1
140
【Grafana Meetup Japan #6】Grafanaをリバプロ配下で動かすときにやること ~ Grafana Liveってなんだ ~
yoshitake945
0
220
生成AI時代のデータ基盤設計〜ペースレイヤリングで実現する高速開発と持続性〜 / Levtech Meetup_Session_2
sansan_randd
1
110
TypeScript入門
recruitengineers
PRO
33
11k
Featured
See All Featured
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
26
3k
Java REST API Framework Comparison - PWX 2021
mraible
33
8.8k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
284
13k
Building Adaptive Systems
keathley
43
2.7k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
61k
Building Flexible Design Systems
yeseniaperezcruz
328
39k
Music & Morning Musume
bryan
46
6.8k
How STYLIGHT went responsive
nonsquared
100
5.8k
RailsConf 2023
tenderlove
30
1.2k
Building Applications with DynamoDB
mza
96
6.6k
jQuery: Nuts, Bolts and Bling
dougneiner
64
7.9k
Transcript
Kotlin Multiplatform
@allymcleangames
Hello
• Kevin Galligan, President of Touchlab • I’ve been coding
Android since before the G1, run a mobile dev shop, and since late 2015 have been largely focused on mobile code sharing • I’m going to tell you about Kotlin Multiplatform
None
Kotlin?
• Static “Better Java” by Jetbrains • 2011 - Announced
• 2016 - v1.0 • 2017 - Google++
None
JVM JS Native
JVM JS Native Common
None
Native
Native Not Native
Native Not Native - Me(h)tal Not Native - Rock
None
–Lemmy Kilmister “It’s Little Richard’s fault, all of it. Little
Richard is directly responsible for Motorhead.”
None
None
None
None
None
None
None
None
None
None
• Shared, testable architecture (not UI) • Smooth interop, optional
code sharing • Active community • Good tools • Bonus! One platform 100% native K O T L I N M U L T I P L A T F O R M
None
None
None
I Can’t See The Future
safe bets
None
None
None
JVM JS Native Common
JVM JS Native Common
JVM Native Common
JVM Native Common Android Stuff Framework iOS Stuff
Common
Common mainThread?
None
None
None
None
None
None
None
Typealias
None
None
Expected a method, was actually there!
None
None
None
None
None
None
None
None
None
Status
Kotlin/Native at .9
Tooling
Speed
Libraries
None
None
None
None
None
None
None
None
None
None
None
None
None
None
• 5 React Native • 3 Flutter • 4 Kotlin
Multiplatform • ~20% of the content! Cross Platform Droidcon
• Serialization • Ktor • I/O • Coroutines Jetbrains
Threads
State
all the code you’ve ever written not frozen frozen
all the code you’ve ever written not frozen frozen
Frozen is • A special runtime state • Like super-immutable
• Only way to share data between threads
Data OtherMutable OtherShared Stuff MoreStuff
Data OtherMutable OtherShared Stuff MoreStuff
None
None
None
None
None
None
None
It works!
Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7
v0.8 v0.8.2
Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7
v0.8 v0.8.2 v0.9 Coroutines (and other libs)
Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7
v0.8 v0.8.2 v0.9 Coroutines (and other libs)
Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7
v0.8 v0.8.2 v0.9 Coroutines (and other libs)
Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7
v0.8 v0.8.2 v0.9 Coroutines (and other libs) v1
Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7
v0.8 v0.8.2 v0.9 Coroutines (and other libs) v1 Major reactive lib Date/other libs Improved tooling Faster builds
Q3 Q2 Q4 Q1 Q2 2018 2019 0 .6 v0.7
v0.8 v0.8.2 v0.9 Coroutines (and other libs) v1 Major reactive lib Date/other libs Improved tooling Faster builds “Mainstream” Big apps Wasm threads
2010 ORMLite ActiveAndroid
2010 ORMLite ActiveAndroid :P
2010 ORMLite ActiveAndroid :P 2018 ORMLite SQLBright SQLDelight Storeio Room
Cupboard SugarORM GreenDAO DBFlow Squeeky Ollie Requery Squidb
2018 Knarch.db SQLDelight 2025? MPSettings Jetbrains stuff
None
[email protected]
@kpgalligan
[email protected]
@kpgalligan Discount code: AndroidSummit