Does anyone have a template for a kotlin multiplatform library for both Android and JVM?

Is there any way to get the typealias target type when overriding a method on a specific platform:

// Common
expect class Input

interface Foo {
  fun doStuff(input: Input)
}

// JVM
actual typealias Input = InputStream

// Use site
object : Foo {
  // I want this type to be `InputStream` when implementing this
  override fun doStuff(input: Input) {
    ...
  }
}

I have project 'FW' that have api dependencies 'LibA' and 'LibC'. When I build framework(cocoapods) for iOS, classes from LibA and LibC are not available top ios app. Only classes that explicitly mentioned (e.g. as return types) appears in header. How do i export all classes from api dependencies?

Hi guys, how I can create a publish artifact of a new source set created? I'm build a REST client for my backend and doing implementation in frontend(kotlin js), retrofit, ktor core(multiplatform). The ktor one I needed to create a new source set because the multiplatform plugin doesn't allow me to create a new common source set, but now I need to create an artifact for each target, but the Ktor one is not a target exactly.

val ktorMain by creating {
    dependsOn(commonMain)
    dependencies {
        applyShared()
        implementation("io.ktor:ktor-client-core:$ktor_version")
    }
}

Someone can help me with that?

Hello, I would like to build a command-line tool with #kotlin-native (should I post there?) This would be a first time for me so any pointers would be appreciated. It would be something relatively simple and I need a command-line options parser, a way to parse JSON and do basic HTTP calls but that’s pretty much it.

I have a project for windows and linux. Both has cinterop mapping. I am trying to reduce code by having some kind of "native-common". Is it possible somehow? See my build gradle here https://github.com/skoky/mylaps-x2-kotlin/blob/master/build.gradle

Hello all, I started some basic implementations on Kotlin multiplatform and started following some amazing blogs written by everyone here. I am trying to implement a basic Service Locator that relies on a lateinit var. I dont see a way to initialize this var in my iOS Code and I also dont see the var in the native compiled code. Code -

@ThreadLocal
object ServiceLocator {

    lateinit var applicationContext: ApplicationContext

    val CareApi by lazy { CareZoneApi(PlatformServiceLocator.httpClientEngine) }

    val performLogin: PerformLogin
        get() = PerformLogin(CareApi)

    val loginPresenter: LoginPresenter
        get() = LoginPresenter(performLogin, getUserSettings(applicationContext))

}

How do I access the

applicationContext

in my iOS app code to assign it a value. The ApplicationContext is my custom class. PS: Please let me know if this is also not the right place to ask this query.

What is suggested way to distribute resource files in MPP library? E.g. iOS app <- fwbundle <- lib-a <- lib-b; androidApp <- lib-a <- lib-b. lib-b have file "mytext.txt" that need to be accessed from lib-a class. lib-a class is used from iOS app. In which folder mytext.txt should be created (src/commonMain/resources?)? How to ensure, that it is exported in fwbundle.framework (so it is available to code from lib-a and to code from iOS app itself)?

Hey guys, I'm working on multiplatform project with iOS app with K/N framework and everything worked just fine untill I've added a cinterop Keychain wrapper written in ObjectiveC. Right now I'm getting

bitcode bundle could not be generated because (...) was built without full bitcode.

when trying to build an archive of my app. Has anybody faced something like this before?

I need Thread-exclusive access to a Map in common code - synchronized is deprecated in K/MP and I'd rather not refactor this code to single coroutine + channel 'actor' style if it can be avoided...does anyone know a neat way to do mutual thread exclusion in K/MP? I'm writing for Android and iOS .

I might just define a my own

expect synchronized

for now and alias it to the JVM implementation for Android, for iOS just pass through in the knowledge that its coroutines are single threaded anyway.

Hi! I just walked through this hands on example, which was super helpful. Thanks to whoever wrote this:

<https://play.kotlinlang.org/hands-on/Targeting%20iOS%20and%20Android%20with%20Kotlin%20Multiplatform/01_Introduction>

I noticed that in this example we create a SharedCode module right inside the same folder as the Android app. Is this approach common, or is it normal to have your shared code as its own project that could be kept in its own git repository? If I do that, I'm not sure how difficult it becomes to link it to my Android app since it's no longer as simple as

implementation project(':SharedCode')

. Just curious what others have done about this.

Is the

androidMain

sourceSet associated with any compilation?

Hi, I am developing my first MPP project. I am wondering if it is possible to make Android studio on Linux understand platform specific imports e.g.

import platform.UIKit.UIDevice

. On Mac it's working just fine but on Linux I am getting

Unresolved reference: platform

. It would be helpful to have syntax highlighting working also on Linux which is my primary platform. Any suggestions?

Hi All! How to use kapt in multiplatform? I apply kap plugin and use kapt 'com.github.bumptech.glide:compiler:4.9.0' in androidMain section. but have an error Gradle DSL method not found: 'kapt()'

Hi!! All Someone has coded location delegates in iosMain (the common part in Kotlin). I need to know if any type of delegates can be implemented in iosMain or the development must be in swift (because if that cannot be done, how scalable is KM?). Something like this https://discuss.kotlinlang.org/t/swift-delegate-cllocationmanagerdelegateprotocol/14320/5

I don't seem to be able to register two different, named Android targets in Kotlin/MP e.g.

kotlin {
    android("standardAndroid") { ... }
    android("specialAndroid") { ... }
}

Get:

Cannot add extension with name 'kotlinOptions', as there is an extension already registered with that name.

...is this expected?

Hi all, I just followed this tutorial - https://play.kotlinlang.org/hands-on/Targeting%20iOS%20and%20Android%20with%20Kotlin%20Multiplatform/01_Introduction I got it to work, but now I want to be able to use android packages inside my

androidMain

. ideas?

After upgrading project from 1.3.31 (Konan, lipo linking) to 1.3.50 (MPP, fatframework task), tests stop working with error:

*** Terminating app due to uncaught exception 'NSGenericException', reason: 'Only one Kotlin framework can be loaded currently'
*** First throw call stack:

Any suggestion how to fix it? App runs fine, only tests are failing. And tests were working before without any problem.

Hi, trying to build kotlin multiplatform project with version 1.3.60-dev-2303 and getting this error during the IOS build.

> Task :linkMyLibReleaseFrameworkIos
e: Compilation failed: Lowering DCEPhase: phases [Devirtualization] are required, but not satisfied

I'm using these options

freeCompilerArgs += "-Xdisable-phases=Devirtualization,BuildDFG"

I’m trying to build a mac application with kotlin/native but I didn’t get an executable as result. Can someone point me to the configuration mistake I made please? https://gist.github.com/thebino/5d0b2992dc0ee1e65eca2a3b46de4f70

Hi all - The following check always fails for me, causing the

iostarget

to be set to

iosX64

.

val iOSTarget: (String, KotlinNativeTarget.() -> Unit) -> KotlinNativeTarget =
        if (System.getenv("SDK_NAME")?.startsWith("iphoneos") == true)
            ::iosArm64
        else
            ::iosX64

How would I add an extra common target/module/sourceSet?

After publishing my MPP library to Artifactory I get this error when building:

Unable to find a matching variant of …

The reason is that I introduced an additional build type in my project which of course doesn’t have a matching one in the MPP project. This doesn’t happen with other MPP projects. Is it because I’ve published both the

debug

and

release

types of my MPP library?

Is there a way to have something in the common folder that has default arguments, and just be called from iOS with a default constructor? When I try this, Xcode keeps telling me

init()

not allowed, and I need to add all params. So far the only work around I have is using a secondary constructor like this. It's not the worst thing but it feels kind of unnecessary:

class MyClass(
	private val paramOne: Int = 5,
	private val paramTwo: Int = 10
) {
	constructor() : this(5, 10)
}

it looks like the

iosTest

gradle task, as created by the project template, doesn't have a results file?

Anyone having trouble with common tests finding references from

commonMain

? Running into this in a new project with nearly identical setup & build.gradle

Anybody sharing ViewModel code between iOS and Android? I'd like to have the ViewModels be shared code, but it looks like the downside is that a custom ViewModel in the shared code would not be tied to the Android lifecycle like in the jetpack libraries. Has anyone come across this design decision and could offer advice? Thanks!