kotlin-multiplatform

name	kotlin-multiplatform
description	Kotlin Multiplatform - shared code, expect/actual, iOS integration
version	1.0.0
sasmp_version	1.3.0
bonded_agent	04-kotlin-multiplatform
bond_type	PRIMARY_BOND
execution	{"timeout_ms":30000,"retry":{"max_attempts":3,"backoff":"exponential","initial_delay_ms":1000}}
parameters	{"required":[{"name":"target","type":"string","validation":"^(setup|shared|expect_actual|ios)$"}],"optional":[{"name":"platforms","type":"array","default":["android","ios"]}]}
logging	{"level":"info","events":["skill_invoked","target_loaded","error_occurred"]}

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