kotlin-multiplatform
Kotlin Multiplatform - shared code, expect/actual, iOS integration
Kotlin Multiplatform - shared code, expect/actual, iOS integration
Kotlin Multiplatform Skill
Build cross-platform applications with shared Kotlin code.
Topics Covered
Project Setup
kotlin {
androidTarget()
listOf(iosX64(), iosArm64(), iosSimulatorArm64()).forEach {
it.binaries.framework { baseName = "Shared"; isStatic = true }
}
sourceSets {
commonMain.dependencies {
implementation("io.ktor:ktor-client-core:2.3.8")
}
androidMain.dependencies { implementation("io.ktor:ktor-client-okhttp:2.3.8") }
iosMain.dependencies { implementation("io.ktor:ktor-client-darwin:2.3.8") }
}
}
expect/actual
// commonMain
expect class SecureStorage { fun get(key: String): String? }
// androidMain
actual class SecureStorage { actual fun get(key: String) = prefs.getString(key, null) }
// iosMain
actual class SecureStorage { actual fun get(key: String) = KeychainWrapper.get(key) }
Troubleshooting
| Issue | Resolution |
|---|---|
| "No actual for expect" | Add implementation in platform source set |
| iOS framework not found | Run linkDebugFrameworkIos task |
Usage
Skill("kotlin-multiplatform")
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