KMP with Koin Annotations

androidApp/build.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
     id("com.android.application")
     kotlin("android")
+    id("com.google.devtools.ksp")
 }
 
 android {
@@ -17,6 +18,15 @@ android {
             isMinifyEnabled = false
         }
     }
+
+    applicationVariants.all {
+        val variantName = name
+        sourceSets {
+            getByName("main") {
+                java.srcDir(File("build/generated/ksp/$variantName/kotlin"))
+            }
+        }
+    }
 }
 
 dependencies {
@@ -28,5 +38,7 @@ dependencies {
     with(Deps.Koin) {
         implementation(core)
         implementation(android)
+        implementation(annotations)
+        ksp(kspCompiler)
     }
 }

androidApp/src/main/java/com/example/helloworldkmp/android/GreetPresenter.kt

@@ -1,7 +1,9 @@
 package com.example.helloworldkmp.android
 
 import com.example.helloworldkmp.Greeting
+import org.koin.core.annotation.Factory
 
+@Factory
 class GreetPresenter(val greeting: Greeting) {
     fun print() = greeting.greeting()
 }

androidApp/src/main/java/com/example/helloworldkmp/android/MainApplication.kt

@@ -1,13 +1,12 @@
 package com.example.helloworldkmp.android
 
 import android.app.Application
-import com.example.helloworldkmp.android.di.androidModule
+import com.example.helloworldkmp.android.di.AndroidModule
 import com.example.helloworldkmp.di.appModule
-import com.example.helloworldkmp.di.commonModule
-import com.example.helloworldkmp.di.platformModule
 import org.koin.android.ext.koin.androidContext
 import org.koin.android.ext.koin.androidLogger
 import org.koin.core.context.startKoin
+import org.koin.ksp.generated.*
 
 class MainApplication : Application() {
     override fun onCreate() {
@@ -16,7 +15,7 @@ class MainApplication : Application() {
         startKoin {
             androidContext(this@MainApplication)
             androidLogger()
-            modules(appModule() + androidModule)
+            modules(appModule() + AndroidModule().module)
         }
     }
 }

androidApp/src/main/java/com/example/helloworldkmp/android/di/AndroidModule.kt

@@ -1,10 +1,8 @@
 package com.example.helloworldkmp.android.di
 
-import com.example.helloworldkmp.android.GreetPresenter
-import org.koin.core.module.dsl.singleOf
-import org.koin.dsl.module
+import org.koin.core.annotation.ComponentScan
+import org.koin.core.annotation.Module
 
-
-val androidModule = module {
-    singleOf(::GreetPresenter)
-}
+@Module
+@ComponentScan("com.example.helloworldkmp.android")
+class AndroidModule

build.gradle.kts

@@ -3,17 +3,19 @@ buildscript {
         gradlePluginPortal()
         google()
         mavenCentral()
+        mavenLocal()
     }
     dependencies {
         classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.21")
-        classpath("com.android.tools.build:gradle:7.1.1")
+        classpath("com.android.tools.build:gradle:7.1.3")
     }
 }
 
 allprojects {
     repositories {
         google()
         mavenCentral()
+        mavenLocal()
     }
 }
 

buildSrc/src/main/java/Dependencies.kt

@@ -1,5 +1,7 @@
+
 object Versions {
     const val koin = "3.2.0"
+    const val koinAnnotaions = "1.0.0-beta-3"
 }
 
 object Deps {
@@ -8,6 +10,7 @@ object Deps {
         const val core = "io.insert-koin:koin-core:${Versions.koin}"
         const val test = "io.insert-koin:koin-test:${Versions.koin}"
         const val android = "io.insert-koin:koin-android:${Versions.koin}"
+        const val annotations = "io.insert-koin:koin-annotations:${Versions.koinAnnotaions}"
+        const val kspCompiler = "io.insert-koin:koin-ksp-compiler:${Versions.koinAnnotaions}"
     }
-
 }

gradle.properties

@@ -14,4 +14,9 @@ kotlin.mpp.enableCInteropCommonization=true
 
 # Native
 kotlin.native.binary.memoryModel=experimental
-kotlin.native.binary.freezing=disabled
+kotlin.native.binary.freezing=disabled
+
+kotlinVersion=1.6.21
+koinVersion=3.2.0
+koinKspVersion=1.0.0-beta-3
+kspVersion=1.6.21-1.0.5

iosApp/iosApp/iOSApp.swift

@@ -5,7 +5,7 @@ import shared
 struct iOSApp: App {
 
     init() {
-        HelperKt.doInitKoin()
+        GreetingHelperKt.doInitKoin()
     }
 
 	var body: some Scene {

settings.gradle.kts

@@ -1,4 +1,12 @@
 pluginManagement {
+
+    val kotlinVersion: String by settings
+    val kspVersion: String by settings
+
+    plugins {
+        id("com.google.devtools.ksp") version kspVersion apply false
+    }
+
     repositories {
         google()
         gradlePluginPortal()

shared/build.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
     kotlin("multiplatform")
+    id("com.google.devtools.ksp")
     kotlin("native.cocoapods")
     id("com.android.library")
 }
@@ -28,15 +29,19 @@ kotlin {
                 with(Deps.Koin) {
                     api(core)
                     api(test)
+                    api(annotations)
                 }
             }
+            kotlin.srcDir("build/generated/ksp/android/androidDebug/kotlin")
         }
         val commonTest by getting {
             dependencies {
                 implementation(kotlin("test"))
             }
         }
-        val androidMain by getting
+        val androidMain by getting {
+            dependsOn(commonMain)
+        }
         val androidTest by getting
         val iosX64Main by getting
         val iosArm64Main by getting
@@ -66,4 +71,11 @@ android {
         minSdk = 21
         targetSdk = 32
     }
+}
+
+dependencies {
+    add("kspCommonMainMetadata",Deps.Koin.kspCompiler)
+    add("kspAndroid",Deps.Koin.kspCompiler)
+    add("kspIosX64",Deps.Koin.kspCompiler)
+    add("kspIosSimulatorArm64",Deps.Koin.kspCompiler)
 }

shared/src/commonMain/kotlin/com/example/helloworldkmp/Greeting.kt

@@ -1,5 +1,8 @@
 package com.example.helloworldkmp
 
+import org.koin.core.annotation.Single
+
+@Single
 class Greeting(private val platform: Platform) {
 
     fun greeting(): String {

shared/src/commonMain/kotlin/com/example/helloworldkmp/Platform.kt

@@ -1,5 +1,8 @@
 package com.example.helloworldkmp
 
+import org.koin.core.annotation.Single
+
+@Single
 expect class Platform() {
     val name: String
 }

shared/src/commonMain/kotlin/com/example/helloworldkmp/di/AppModule.kt

@@ -1,3 +1,11 @@
 package com.example.helloworldkmp.di
 
-fun appModule() = listOf(commonModule, platformModule)
+import org.koin.core.annotation.ComponentScan
+import org.koin.core.annotation.Module
+import org.koin.ksp.generated.module
+
+fun appModule() = listOf(AppModule().module)
+
+@Module
+@ComponentScan("com.example.helloworldkmp")
+class AppModule

shared/src/iosMain/kotlin/com/example/helloworldkmp/Helper.kt → shared/src/iosMain/kotlin/com/example/helloworldkmp/GreetingHelper.kt

@@ -1,7 +1,6 @@
 package com.example.helloworldkmp
 
 import com.example.helloworldkmp.di.appModule
-import com.example.helloworldkmp.di.commonModule
 import org.koin.core.component.KoinComponent
 import org.koin.core.component.inject
 import org.koin.core.context.startKoin