Kotlin Multiplatform Library using Cocoapods with multiple ios targets

Question

I have a Kotlin Multiplatform Library which supports Android, ios(arm64, simArm64). I recently added a cocoapod dependancy of the ios target (Analytics).

When using only one ios target(for example arm64) then the library compiles and works as expected.

When I add the additional ios target simArm64, i get the error that the compiler: Unresolved reference: cocoapods

My guess this is because .dependsOn doesnt play nicely with cocoapods, has anybody come across this issue and how they got around it?

Here is an example of my build gradle.

    iosSimulatorArm64 {
        binaries.framework {
            baseName = frameworkName
            xcf.add(this)
        }
    }
    iosArm64("ios") {
        binaries.framework {
            baseName = frameworkName
            xcf.add(this)
        }
    }
    cocoapods {
        ios.deploymentTarget = "10.0"
        summary = "Some description for a Kotlin/Native module"
        homepage = "Link to a Kotlin/Native module homepage"

        pod("Analytics") {
            version = "~> 4.1.6"
            moduleName = "Segment"
            source = git("https://github.com/Reedyuk/analytics-ios.git") {
                branch = "master"
            }
        }
    }
....
        val iosMain by getting {
            dependencies {
                implementation("io.ktor:ktor-client-ios:$ktor_version")
            }
        }
        val iosSimulatorArm64Main by getting
        iosSimulatorArm64Main.dependsOn(iosMain)
        val iosTest by getting
        val iosSimulatorArm64Test by getting
        iosSimulatorArm64Test.dependsOn(iosTest)

Answer 1

After further inspection, i managed to find a solution.

In the cocoapods extension there is a 'framework' field, in addition adding

kotlin.mpp.enableCInteropCommonization=true

to the gradle.properties file

You will have something that looks like this:

kotlin {
    android {
        publishAllLibraryVariants()
    }

    val xcf = XCFramework()
    iosSimulatorArm64 {
        binaries.framework {
            baseName = frameworkName
            xcf.add(this)
        }
    }
    iosArm64("ios") {
        binaries.framework {
            baseName = frameworkName
            xcf.add(this)
        }
    }

    sourceSets {
        val commonMain by getting
        val commonTest by getting
        val androidMain by getting {
            dependencies {
                api("com.segment.analytics.android:analytics:4.10.3")
            }
        }
        val androidTest by getting

        val iosMain by getting {}
        val iosSimulatorArm64Main by getting
        iosSimulatorArm64Main.dependsOn(iosMain)
        val iosTest by getting
        val iosSimulatorArm64Test by getting
        iosSimulatorArm64Test.dependsOn(iosTest)
    }

}

kotlin {
    cocoapods {
        ios.deploymentTarget = "10.0"
        summary = "Some description for a Kotlin/Native module"
        homepage = "Link to a Kotlin/Native module homepage"
        framework {  }
        pod("Analytics") {
            version = "~> 4.1.6"
            moduleName = "Segment"
            source = git("https://github.com/Reedyuk/analytics-ios.git") {
                branch = "master"
            }
        }
    }
}