Kotlin Multiplatform

Transcript

1. Kotlin Multiplatform
2. Kotlin A modern programming language that makes developers happier • July 2011 JetBrains unveiled Project Kotlin, new language for JVM • Goals New language features, quick compilation • February 2012 Open Source • February 2016 Kotlin 1.0 released • Google I/O 2017 Google announced fi rst-class support for Kotlin on Android • 2019 Android become Kotlin fi rst • Current stable release 1.6
3. Kotlin Multiplatform
4. Kotlin Multiplatform use cases Android and iOS application s Full-stack web application s Multiplatform libraries
8. Netflix case study • Prodicle is a tool to manage all your production contacts and distributions in one place • Android and iOS apps have a shared architecture with similar or identical business logic • 50% of production code is decoupled from the underlying platform • Possible Javascript transpilation
9. Quizlet case study • Originally they reused the web codebase by sharing JS code • JavaScriptCore on iOS • J2V8 on Android • Performance issues and memory leaks • Debuggability • APK size almost double
10. Quizlet case study • Do not require bridge layer and external runtime • iOS 25x faster performance than using JavaScriptCore • Android 1.5s o f of J2V8 init time • 50x faster data marshalling • 5x faster runtime of shared code itself • Web bundle size increased by 30Kb