Hi, I am creating a simple multiplatform project (Android, iOS) and I have a problem with UI Corouti...

# kotlin-native

[rafal.adasiewicz]

Hi, I am creating a simple multiplatform project (Android, iOS) and I have a problem with UI CoroutineDispatcher for iOS. As Roman Elizarov mentioned in this thread https://github.com/Kotlin/kotlinx.coroutines/issues/462#issuecomment-429233477 I’ve added https://github.com/JetBrains/kotlinconf-app/blob/master/konfios/konfswift/ui/UI.swift dispatcher to my iOS app, but for some reason compiler says that Kotlinx_coroutines_core_nativeCoroutineDispatcher is undeclared. Moreover, I’ve spotted that if I go with the second solution https://github.com/Kotlin/kotlinx.coroutines/issues/470#issuecomment-414635811 everything works fine and Kotlinx_coroutines_core_nativeCoroutineDispatcher is declared properly. Why does Kotlinx_coroutines_core_nativeCoroutineDispatcher type disappears in the first approach?
I am using:

coroutines - '0.30.2-eap13'
kotlin_version = '1.3.0-rc-146'
Gradle version =  4.7

[alex009]

your kotlin project on native compiled into framework?

[rafal.adasiewicz]

yes

[alex009]

in framework header file exist classes only used in your project directly. if in your project never used CoroutinesDispatcher in public api then in framework header class not appear

[alex009]

so you can use CoroutinesDispatcher in kotlin code like in second solution. or you can write in your project some public variable with tipe CoroutinesDispatcher and class will be available in swift

[alex009]

https://github.com/JetBrains/kotlin-native/issues/2201 issue for this case

[alex009]

try just to add
val justValue: CoroutinesDispatcher? = null somewhere in your kotlin project

[alex009]

after that in swift you should get Kotlinx_coroutines_core_nativeCoroutineDispatcher

[rafal.adasiewicz]

okay, thanks!