Kotlin Multiplatform MVVM Tutorial 2026 โ€” SQLDelight + SwiftUI + Jetpack Compose

KDTechs Guide 16 days ago

Description

In this complete Kotlin Multiplatform MVVM tutorial, you'll build a production-ready app from scratch that runs natively on Android and iOS โ€” sharing one ViewModel, one database, and one repository layer across both platforms.

โฑ TIMESTAMPS
00:00 โ€” Introduction & finished app demo
05:00 โ€” Prerequisites & environment setup
10:00 โ€” KMP project setup with wizard
15:00 โ€” Fix AGP version error (8.9.2 + Gradle 8.11.1)
20:00 โ€” MVVM architecture explained for KMP
25:00 โ€” Gradle & libs.versions.toml setup
30:00 โ€” SQLDelight schema & code generation
35:00 โ€” Data layer: TodoEntity & DriverFactory (expect/actual)
42:00 โ€” Domain layer: Repository pattern
47:00 โ€” ViewModel: shared StateFlow + business logic
52:00 โ€” Android UI with Jetpack Compose
57:00 โ€” iOS UI with SwiftUI + ObservableObject bridge
62:00 โ€” Fix all iOS linker errors (libsqlite3)
66:00 โ€” Live demo on Android emulator & iOS simulator

๐Ÿ›  WHAT WE USE
โ€ข Kotlin Multiplatform (KMP) โ€” Kotlin 2.0.21
โ€ข MVVM architecture โ€” shared ViewModel + StateFlow
โ€ข SQLDelight 2.0.2 โ€” cross-platform SQLite database
โ€ข Jetpack Compose โ€” Android native UI
โ€ข SwiftUI โ€” iOS native UI
โ€ข expect/actual โ€” platform-specific implementations
โ€ข AGP 8.9.2 + Gradle 8.11.1

๐Ÿ“Œ WHAT YOU'LL LEARN
โœ… MVVM clean architecture in Kotlin Multiplatform
โœ… expect/actual pattern for platform-specific code
โœ… SQLDelight on Android & iOS from shared code
โœ… Shared ViewModel with StateFlow
โœ… Bridging KMP StateFlow to SwiftUI ObservableObject
โœ… Repository pattern in shared commonMain
โœ… Fix every common KMP + iOS error

๐Ÿข USED IN PRODUCTION BY
Netflix, McDonald's, Google, Cash App and Forbes โ€” KMP is no longer experimental. It's the skill that makes you a 10x mobile developer in 2026.

๐Ÿ”— RESOURCES
โ€ข Source code: https://github.com/khaliqdadmohmand/kmp_todo_app
โ€ข KMP Wizard: https://kmp.jetbrains.com
โ€ข SQLDelight docs: https://cashapp.github.io/sqldelight

#KotlinMultiplatform #KMP #MVVM #SQLDelight #SwiftUI #JetpackCompose #AndroidDevelopment #iOSDevelopment #Kotlin #MobileDev