i have a sealed class in mu kotlin usecase but the types arent available in iOS - just wondering if there is anything i have to do to get the sealed subclasses to be generated (compiler flag or something?). The module is

domainKmm

class LoginUseCase {
sealed class State {
    object Initial : State()
    object StartAuthorization : State()
    object AuthorizationTokenReceived : State()
    object AccessTokenReceived : State()
    object SuppliersLoading : State()
    data class SuppliersLoaded(val suppliers: List<Supplier>) : State()
    data class ConfirmSupplierChange(val chosenSupplier: Supplier, val currentSupplier: Supplier) : State()
    data class SupplierLoadError(val e: Throwable) : State()
    object NoSupplier : State()
    data class LoggedInSuccess(val isNewSupplier: Boolean) : State()
}
}

So i can use

DomainKmmLoginUseCase

and

DomainKmmLoginUseCase.State

but i cant use

DomainKmmLoginUseCase.State.Initial

I cant find any declaration of things like

Initial

or

StartAuthorization

in the generated iOS header file. is there any guidance on using sealed classes in iOS? i've seen they dont really map to swift well - but havent been able to find any usage examples.

Does Kotlin Multiplatform officially reach Beta ?

Has anyone seen any benchmarks around the new memory manager for Kotlin/native? I’m curious how well it’s performing now

I'm running a test with Kotlin Multiplatform and I see the following message in the logs. What does it mean?

:arrow-optics:compileKotlinIosX64	
Invalid device: iPhone 12	
Invalid device: iPhone 12	
Invalid device: iPhone 12

Does it mean that I have an iPhone 12 connected but I require some other version? Does it mean that it is looking for an iPhone 12 but couldn't find it?

on https://kotlinlang.org/docs/multiplatform-mobile-plugin-releases.html#release-details, 0.3.4 = Beta?

There is something I don't get about the Jetpack Multiplatform libraries: If DataStore depends on Java IO and Android platform APIs, how can it be multiplatform? https://android-developers.googleblog.com/2022/10/announcing-experimental-preview-of-jetpack-multiplatform-libraries.html?m=1

I have a project to develop a shared KMM library module. However, it needs to use both Sqldelight and Ktor, which are also used by our main shared common code module for the app. How can I use the same Sqlight and Ktor dependencies for both multiplatform library iOS frameworks and not duplicate the dependencies?

Hi all, right now I have a kmm mobile app and a ktor server project in separate repositories that I want to combine, but when I put ktor in a jvmMain source set I get

The 'java' plugin has been applied, but it is not compatible with the Android plugins.

. Is there a better way to have a single client/server app in kmm mobile?

⚠️ 🙅 It appears that Cocoapods integration is effectively broken when using Cocoapods version >=

1.11.0

, due to the arbitrary decision from Cocoapods to make it a hard requirement to have a

LANG

environment variable set. • Here is a tracking issue in Cocoapods repo, requesting this requirement be stepped-back • I've also raised a youtrack YouTrack issue to hopefully restore compatibility with latest Cocoapods.

Hi, google recently announced that they have added DataStore and Collections libraries into kotlin multiplatform. They have added them to Jetpack Multiplatform. Those libraries depends on java: • Collections is an example of a library written in the Java programming language that has no Android-specific dependencies, but implements Java collection APIs. • DataStore is written entirely in Kotlin, and it uses coroutines in both its implementation and APIs. It also depends on Java IO and Android platform APIs. Now that these libraries can be used in kotlin multiplatform, does that means that they have been ported to kotlin native removing java dependency and that they can be used to develop a IOS or Windows native project without a JVM installed?

Hi, i am a native android developer looking for a solution to consuming C# (.NET dlls) within a Kotlin/Java Andrid application i have spent the last few days searching the internet for solutions such as Embeddinator-4000, DNNE Java.Interop without success I was wondering (hoping) KMM would allow/support this usecase, can anyone confirm (Or deny 😉 ) KMM is the answer I am looking for please?

Hi, is anyone else getting a lot of warnings in their iOS build after updating from Kotlin 1.7.10 to 1.7.20? In both Xcode 14.0 & 14.1b3, simulator or device, our build is totally cluttered with over 3,000 warnings in the format

(arm64) could not find object file symbol for symbol ...

after changing version. Seems like most relate to iOS code written in Kotlin, or 3rd party dependencies (Okio, SQLDelight, Koin, Apollo, NSExceptionKt).

Is there a KMM lib or pattern to abstract Android's

Service

and the iOS equivalent to keep an app running in the background with UI closed?

Is there any way to anotate a class in common module with java-only lib anotations? expected/actual didnt work because the anotation has enum inside and i couldnt get it to work

Is there any way to import some iOS network specific classes like

platform.Network.NWConnection

to an

actual

Kotlin class? I can see classes like

platform.Network.nw_connection_t

but I am not sure they are the same.

I'd like to nest some tests, ie

class DesignControllerTest {
    @Nested
    inner class DeleteDesign {
        @Test
        fun `design is removed from db`() {}
    }
}

but

@Nested

isn't available, it looks like it requires Junit5. However, JUnit is for JVM only, or? Is there a way to nest test for all platforms?

Hello , question about KMM and swift framework. I wanted to integrate it in Shared module. Doing so by docs https://kotlinlang.org/docsmultiplatform-mobile-ios-dependencies.html results in error module not found. Did someone had the same and how to resolve this? Maybe someone have Open source sample ?

Similar question to above: I have tried to wrap the KMM generated xcframework in a Swift Package, plus some Swift code as wrappers to make the API more 'Swift-y'. But I am unable to get the Package.swift configured just right. It would be great to see an example of this, if possible. Or if not possible, would be nice to know that too.

Hello, I'm trying to compile a c++ static lib and link it to my cinterops compilation. I've managed to compile the c++ lib using cpp-library, but I can't think of how to link the output to the inputs of cinterops. Anyone have any ideas on how to do this, or if I'm doing something completely wrong?

Migrated my KMM Currency Convertor App from using multi-platform settings to the new Jetpack Datastore Preview. Seems like nothing was changed and was trivial. :] . Check it out here https://github.com/develNerd/FL-CurrencyConvertor-Kotlin-Multiplatform-Mobile .

in case anyone is interested, I just finally found out how to bind gradle code generation task properly at the

build

task:

tasks {
    val generateCode by registering(GenerateCode::class)
    kotlin.sourceSets.commonMain { kotlin.srcDir(generateCode.get().outputs.files) }

In my multiplatform project I'm using the following build phase script code to automatically upload dSyms to crashlytics

"${BUILD_DIR%/Build/*}/SourcePackages/checkouts/firebase-ios-sdk/Crashlytics/run"

This works fine in xCode, but in Android studio it points to my git repo that contains the project code, whereas xCode properly defines that as the directory in the derivedData. Is this perhaps an issue with how KMM builds the project when ran from Android Studio? As that for some reason $BUILD_DIR seems to have a different value when ran from the KMM build

Hello! I’am trying to use AppCode to edit kotlin and swift. The Gradle sync compete successful but i don’t get reference resolve between kotlin and swift. The possible wreaking places can be message in gradle log:

Top-level Android dependencies are not supported – please declare the dependencies for an individual source set.

And message from AppCode (doesn’t shows in gradle log)

Collection contains no element matching the predicate.

AppCode 2022.2 Build #OC-222.3345.144, built on August 2, 2022 com.jetbrains.appcode.android (222.3345.144) com.intellij.appcode.kmm (222.3345.144)

Hey folks, I have got some questions and would love to hear your thoughts on this. We have developed two native SDKs (android and iOS) in our company. And since there is alot of same business logic, I was thinking of creating a library(maybe multiplatform?) with ability to publish maven and cocopods artifacts. That way we will still have two native SDKs but code will be the shared. Wanted to clarify few things. 1- Does this sound like a good approach? 2- Can multiplatform library has separate aritifacts for native SDKS? 3- Would it significantly increase the size of SDKs? 4- Would our host app be required to add external dependencies of any sort? e.g Multiplatform etc? 5- Anything else, I should worry about? Any kind of help would be highly appreciate. I have tried looking for similar use cases if anyone else is doing but couldn't find any.

I'm having a lot of difficulty getting @JsExport to work reliably. I have a separate KotlinJs project where it seems okay, but within a multiplatform project the behavior appears inconsistent. From my testing here's the most I know: • At the root level, @JsExport doesn't do anything. However,

main

is always exported regardless. • Within a package, @JsExport works as expected (making sure any identifiers included are not mangled). However, any function not referenced is not included. Functions that are referenced at the root level but not themselves exposed (likely because they aren't referenced?) are still included. Unlike the root level,

main

is not exported. In hindsight, it seems like the issue here is that functions are only included in the output if 1) they're referenced, or 2) they're the root main (rather than being an issue with @JsExport). Is this intended? How can I force the output to include these functions for the purpose of a library?

@Rick Clephas sorry for mentioning you. I’ve an interface in the shared module which I plan to implement the interface in the respective App modules (not in ios, android packages of the kmm module)

interface FetchTalkUseCase {
    suspend fun execute(talkID: String): Talk
}

When I use KMP-NativeCouroutines to generate native async methods, this interface generates the following header file

__attribute__((swift_name("FetchTalkUseCase")))
@protocol DomainFetchTalkUseCase
@required

/**
 @note This method converts instances of CancellationException to errors.
 Other uncaught Kotlin exceptions are fatal.
*/
- (void)executeTalkID:(NSString *)talkID completionHandler:(void (^)(DomainTalk * _Nullable, NSError * _Nullable))completionHandler __attribute__((swift_name("execute(talkID:completionHandler:)")));
- (DomainKotlinUnit *(^(^)(DomainKotlinUnit *(^)(DomainTalk *, DomainKotlinUnit *), DomainKotlinUnit *(^)(NSError *, DomainKotlinUnit *)))(void))executeNativeTalkID:(NSString *)talkID __attribute__((swift_name("executeNative(talkID:)")));
@end;

Which when I implement in Swift code is as Screenshot. Is it working as intended? Can I restrict it to generate only the

async

type ignoring the completionHandler one? 🙇

Given a KMP gradle subproject moduleA with dependencyA (current state of my library), I'm looking for the best way to configure a gradle subproject moduleB that has the following requirements: 1. Add additional code to *moduleA*'s API, both additional classes as well as functions and properties on existing classes (may be achieved via extension functions). 2. Replace dependencyA with dependencyB, which contains *dependencyA*'s API with additions (dependency A and B already exist). 3. Must have access to

internal

API of moduleA in moduleB. 4. moduleA and moduleB produce unique published artifacts. I considered adding moduleA as a dependency to moduleB with

exclude

for dependencyA, but #3 isn't possible this way. Next I considered adding *moduleA*'s source directories to *moduleB*'s such that the same source files would be compiled along with *moduleB*'s API additions. But I ran into this IDE restriction, where "duplicate content root" error causes the source directories to be removed from moduleB. As a workaround, I've added symlinks from moduleB to *moduleA*'s source directories. While this seems to work, I'm not convinced this is the best way to achieve the goals listed above. Are there other project configuration options I could consider?

There are lots of resources on how to use Flows from Swift. Is there any info on how to create Flows?

Updated IntelliJ and now my multiplatform project is upset. In my JVM "desktop" source set, it doesn't know about any of the JVM classes anymore. Latest IntelliJ and Kotlin 1.7.10, anyone seen this in recent updates?

Does the compiler hate expected data class constructors? It seems that any expected primary constructor I write (with corresponding actual versions) complains "Expected class constructor cannot have a property parameter", but if I take it away it complains that data classes have to have a primary constructor. Has AS just got itself in a knot or have I misunderstood something (again 😟)