Getting started Kotlin Multiplatform

Transcript

1. Getting started Kotlin Multiplatform Mohit Sharma Developer Advocate, Realm codeWithMohit WELCOME
2. Agenda • Intro • Why KMM ? • Basics of KMM • Getting Started • Code • Q & A
3. Hi, I’m Mohit 👋 codeWithMohit MongoDB, Ireland Realm Developer Advocate Dubizzle (Olx), Dubai Mobile Evangelist ToTheNew, New Delhi Lead Mobile Developer
4. - Open Source Mobile Database - Object-oriented database - Build for Offline first application - Out of the box data sync - Function, tiggers, Auth, GraphQL
6. Swag • Tweets with tags @codewithMohit, @realm, @gdg_nd, #KMMRealmWorkshop • Share your KMM + Realm Github Repo
7. Why KMM?
9. Another perspective UI Logic Data Feature
10. 70% App Logic 30% UI UI Logic Data Feature UI
14. What is KMM ?
15. Project Structure
16. Project Structure
17. Project Structure
18. Project Structure
19. actual/expect
21. // Common expect fun randomUUID(): String // Android import java.util.* actual fun randomUUID() = UUID.randomUUID().toString() // iOS import platform.Foundation.NSUUID actual fun randomUUID(): String = NSUUID().UUIDString()
22. // Common expect class Platform() { val platform: String } // Android actual class Platform actual constructor() { actual val platform: String = "Android ${android.os.Build.VERSION.SDK_INT}" } // iOS import platform.UIKit.UIDevice actual class Platform actual constructor() { actual val platform: String = UIDevice.currentDevice.systemName() + " " + UIDevice.currentDevice.systemVersion }
23. Suspend functions
24. suspend fun loadMovies():MoviesList? { val url = MY_URL return networkService.loadData<MoviesList>(url) } func getMovies() { self.networkService?.loadMovies {(movies, error) in //... } }
25. Library Support - Ktor - Kotlinx Serialisation - Realm - AAkria/Kotlin-Multiplatform -Libraries
26. Get Started
27. Agenda
28. Agenda
29. Agenda
30. Agenda
31. Agenda
33. Setting up gradle
34. Setting up gradle
35. Setting up gradle
38. Code
39. The decision to use KMM
40. Advantages Disadvantages - Separation on concern - Kotlin - No bridges! - Low commitment - Learn curve is small - API in Alpha - Gradle configuration is a pain
41. Thank you for your time. codeWithMohit