Kotlin Multiplatform – Sharing is caring!

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Multiplatform Sharing is Caring! Sunitha Burri

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Pragmatic

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Concise Open Source Statically Typed Object-oriented + Functional programming features Tool Friendly Easy to adapt

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Oﬃcial Programming Language on Android

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Android Server Desktop Kotlin/JVM Kotlin/JS Kotlin/Native Web Cloud iOS macOS Linux Windows Common Code

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Sharing code between platforms : JVM, Android, JavaScript, iOS, Linux, Windows, Mac and even embedded systems like STM32 Multiplatform

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Share as much code as needed, yet access platform APIs!

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Common Module iS JS Platform Module Target App Platform Independent Platform Speciﬁc App

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Common Module iS JS Platform Module Target App

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Common Module iS JS Platform Module Target App Android iOS

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Common Module iS JS Platform Module Target App Platform Independent Platform Speciﬁc App

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Kotlin Multiplatform for Android & iOS

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Kotlin/Native target presets androidNativeArm32 and androidNativeArm64 for Android NDK iosArm32, iosArm64, iosX64 for iOS linuxArm32Hfp, linuxMips32, linuxMipsel32, linuxX64 for Linux macosX64 for MacOS mingwX64 for Windows wasm32 for WebAssembly

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Install Command line tools xcode-select --install

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Common Module JVM Native Framewo rk Xcode-Framework

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Takeaways Kotlin Multi platform is still an experimental feature Painful to setup a project Ktor, kotlinx.serialization Use a sample instead Conference apps Best part - Incremental approach