Do the IDE code references between Kotlin and Swif...

# multiplatform

[Lukáš Kúšik]

Do the IDE code references between Kotlin and Swift work for anyone who uses AppCode with KMM?

For me, objects from the shared Kotlin library in Swift code are red underlined, even the new KMM project template is broken for me.

[Vidmantas Kerbelis]

Works just fine.
With one project’s setup - I get directed directly to the .kt files reference to the specific location.
With another I get a massive .swift file mapping generated which does not directly jump to the .kt file. (Not sure why though)
-
So, something’s up with how you’ve set up the project probably. (Also try Gradle -> Reload All Gradle Projects)

[Lukáš Kúšik]

This is a new KMM project

I have so far ignored the
Collection contains no element matching the predicate. error, but that might be a problem 😄

[Vidmantas Kerbelis]

How does your build.gradle look?

[Lukáš Kúšik]

Android

plugins {
    kotlin("multiplatform")
    id("com.android.application")
}

group = "me.user"
version = "1.0-SNAPSHOT"

repositories {
    google()
    jcenter()
}

kotlin {
    android()
    sourceSets {
        val androidMain by getting {
            dependencies {
                implementation(project(":shared"))
                implementation("com.google.android.material:material:1.5.0")
                implementation("androidx.appcompat:appcompat:1.4.1")
                implementation("androidx.constraintlayout:constraintlayout:2.1.3")
            }
        }
    }
}

android {
    compileSdkVersion(31)
    defaultConfig {
        applicationId = "me.user.androidApp"
        minSdkVersion(24)
        targetSdkVersion(31)
        versionCode = 1
        versionName = "1.0"
    }
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }
    buildTypes {
        getByName("release") {
            isMinifyEnabled = false
        }
    }
}

[Vidmantas Kerbelis]

Wait, why’s there a build.gradle.kts under iosApp? iosApp should not need any build.gradle 🤔

[Lukáš Kúšik]

I think it's the new KMM xcode-less iOS modules that manages the xcode project

[Vidmantas Kerbelis]

Everything should be set up under the
shared/build.gradle.kts, should look something like:

kotlin {
    android()

    listOf(
        iosX64(),
        iosArm64(),
        iosSimulatorArm64()
    ).forEach {
        it.binaries.framework {
            baseName = "shared"
            isStatic = false
        }
    }

    sourceSets {
     ...
    }
}

[Lukáš Kúšik]

That's there..
I have also tried new KMM project template with Xcode and also the KMM template from latest Android Studio. All fail the Gradle sync in AppCode with Collection contains no element matching the predicate.

I guess I'll create an issue on YouTrack

[Lukáš Kúšik]

https://youtrack.jetbrains.com/issue/KMA-589/New-KMM-project-template-fails-to-Gradle-Sync-with-Collection-contains-no-element-matching-the-predicate.

[Vidmantas Kerbelis]

Mmm, I see, this is built via New Project -> Kotlin Multiplatform Mobile: Gradle,
I created a new project using this on my machine and actually… It works just fine 🤔
AppCode 2022.2.5,
Kotlin Multiplatform Mobile for AppCode Plugin used to generate the project 222.4459.24

[Vidmantas Kerbelis]

Just now I managed to get it running on a simulator

[Lukáš Kúšik]

do you have M1? what's your Java version?

[Vidmantas Kerbelis]

Naa, not an M1. Maybe that’s an issue.

java version “11.0.12” 2021-07-20 LTS

Java(TM) SE Runtime Environment 18.9 (build 11.0.12+8-LTS-237)

Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.12+8-LTS-237, mixed mode)

[Vidmantas Kerbelis]

And the references are working

[Vidmantas Kerbelis]

Screen Recording 2022-12-14 at 13.37.56.mov

[Lukáš Kúšik]

I have tried AppCode 2022.2.5 with the same result.
I envy you 😄 I have to switch to Xcode all the time when I want to work with the shared library 😬

[Ciaran Sloan]

yeah have the same issue. Not able to use app code as get unresolved references too, so I just stick with X-Code these days

[mbonnin]

Well... https://blog.jetbrains.com/appcode/2022/12/appcode-2022-3-release-and-end-of-sales-and[…]tent=blog&utm_medium=social&utm_source=twitter&utm_term=223

[Lukáš Kúšik]

Oh no... F

[mbonnin]

Yea, I understand the decision but it still feels sad to be stuck with Xcode

[Ciaran Sloan]

yeah thats a bit disappointing! X-Code is such a pain to work with 😢

[Lukáš Kúšik]

inb4 the Swift plugin is moved to Android Studio and it gets renamed to Mobile Studio 😄

[Lukáš Kúšik]

UPDATE: If anyone has the same problem with KMM references in AppCode, install JDK 11 🙂