Description
In this complete Kotlin Multiplatform (KMP) tutorial, you'll build a fully working Todo app that runs natively on both Android and iOS — sharing the same database, ViewModel, and business logic.
⏱ TIMESTAMPS
00:00 — Introduction & app demo
05:00 — Prerequisites & tool setup
10:00 — Create KMP project with the wizard
15:00 — Fix AGP version error (very common!)
20:00 — Project structure explained
25:00 — Gradle & dependency files
30:00 — SQLDelight schema & database
35:00 — Shared Kotlin code (Model, Repository, ViewModel)
45:00 — Android UI with Jetpack Compose
50:00 — iOS UI with SwiftUI
55:00 — Fix every iOS error step by step
58:00 — Run on both platforms & live demo
🛠 TECH STACK
• Kotlin Multiplatform (KMP) — Kotlin 2.0.21
• SQLDelight 2.0.2 — shared SQLite database
• Jetpack Compose — Android UI
• SwiftUI — iOS UI
• AGP 8.9.2 + Gradle 8.11.1
📌 WHAT YOU'LL LEARN
✅ expect/actual pattern in KMP
✅ Shared ViewModel with StateFlow
✅ SQLDelight on Android & iOS
✅ Fix the AGP 9.x version error
✅ Fix all common iOS linker errors (libsqlite3)
✅ Run on Android emulator & iOS simulator
🔗 SOURCE CODE
https://github.com/khaliqdadmohmand/kmp_todo_app
📢 USED BY NETFLIX, McDONALD'S & GOOGLE
As of 2026, KMP is officially supported by Google and used in production by major companies. This is the skill that will make you stand out as a mobile developer.
#KotlinMultiplatform #KMP #AndroidDevelopment #iOSdevelopment #JetpackCompose #SwiftUI #SQLDelight #MobileDevelopment #Kotlin #CrossPlatform