Uploaded byVikram Hooda
Kotlin multi platform
The document discusses a presentation on Kotlin multi-platform, focusing on code sharing across different platforms using Kotlin. It details the setup of a shared module for common functionality and outlines the 'expect/actual' mechanism for platform-specific implementations. Pros include code sharing and reduced development effort, while cons highlight limited library support and debugging challenges, especially on iOS.
Kotlin multi platform
- 1. Lunch and Learn KotlinMulti-platform on
- 2. Topics • Presentation onKotlin multi-platform • Code overview • Build framework and run a PoC app • Q&A
- 3. Vikram Hooda Mobile applicationdeveloper
- 4. Kotlin Multi-platform • Designedby JetBrains. • Shares non-ui logic on different platforms and uses Kotlin language. • Open source, natively-integrated and optional sharing. • Code sharing, not cross-platform. • Current Status: Experimental state
- 5.
- 6. Common JSJVM Native Java AndroidBrowser Node iOS Linux Window Embedded .jar .framework.js
- 7.
- 8. Create a newAndroid and iOS project, if you do not have one.
- 9. Create a newmodule(“Shared”) under Android project to serve common functionality to target platforms. Shared module
- 10. Now, create targetspecific directory under “Shared” module. Shared module directory structure
- 11. Set dependencies andtarget in Shared module’s “build.gradle” file.
- 12.
- 13.
- 14.
- 15.
- 16. Common Module (Shared businesslogic) Native Platforms Module (Android, iOS) expect actual “expect/actual” Keywords
- 17. • “expect” declaresin common module. • expect val plateformName: String //In common code • “actual” defines in target module. • actual val plateformName: String = “Android” //In Android code • actual val plateformName: String = “iOS” //In iOS code Example of “expect/actual” keyword
- 18.
- 19. Pros • Code sharing •Single source of truth for business logic to native platform • Less refactoring/rewriting efforts • Time and cost saving
- 20. Cons • Lack oflibraries support . • Concurrency complications on iOS. • Painful debugging and runtime exception tracing on yet supported on iOS . • Must to have all targeted platform’s basic knowledge i.e. Kotlin, Swift, Android and iOS apis.
- 21. Code iOS: https://github.com/vkhooda24/KnowMyCountry-iOS-Multi-platform Android andMulti-platform: https://github.com/vkhooda24/KnowMyCountry-Kotlin-Multiplatform
- 22.