How to use Kotlin multiplatform sealed class in Swift
How to use Kotlin multiplatform sealed class in Swift
How to use Kotlin multiplatform sealed class in Swift
Learn how to transform your sealed class into Swift enums
![How to use Kotlin multiplatform sealed class in Swift](https://framerusercontent.com/images/9eUZAtCZZmYjMYQusNTqq0X8DAc.jpg)
![How to use Kotlin multiplatform sealed class in Swift](https://framerusercontent.com/images/9eUZAtCZZmYjMYQusNTqq0X8DAc.jpg)
Learn how to transform your sealed class into Swift enums
Learn how to transform your sealed class into Swift enums
Learn how to transform your sealed class into Swift enums
The problem
If you intend to use a sealed class from a Kotlin multiplatform module in a Swift client, you can access the information, but you won’t be able to use it as an enum in Swift. This is because the generated Swift code for a sealed class does not translate to an enum in Swift.
Indeed if you define a sealed class, such as the one shown below:
sealed class Destination(val path: String, val icon: ImageVector) { object Home : Destination("home", Icons.Rounded.Home) object Storybook : Destination("storybook", Icons.Rounded.Refresh) object Settings : Destination("settings", Icons.Rounded.Settings) }
The only possible way to instantiate a Destination
in Swift is as follows:
let destination: Destination = Destination.Home()
when we want to do this :
let destination: Destination = .home
So, how to make these sealed classes more Swift-friendly?
Solution
We are going to use KSwift library, a Swift-friendly api generator for Kotlin/Native frameworks.
Add in root build.gradle
buildscript { repositories { mavenCentral() google() gradlePluginPortal() } dependencies { classpath("dev.icerock.moko:kswift-gradle-plugin:<latest>") } }
Add in project build.gradle
plugins { id("dev.icerock.moko.kswift") } kswift { install(dev.icerock.moko.kswift.plugin.feature.SealedToSwiftEnumFeature) }
Rebuild the project and the kswift library generated for us the Swift api and now we can access to the sealed class in a more Swift way :
let destination: Destination = .home
The problem
If you intend to use a sealed class from a Kotlin multiplatform module in a Swift client, you can access the information, but you won’t be able to use it as an enum in Swift. This is because the generated Swift code for a sealed class does not translate to an enum in Swift.
Indeed if you define a sealed class, such as the one shown below:
sealed class Destination(val path: String, val icon: ImageVector) { object Home : Destination("home", Icons.Rounded.Home) object Storybook : Destination("storybook", Icons.Rounded.Refresh) object Settings : Destination("settings", Icons.Rounded.Settings) }
The only possible way to instantiate a Destination
in Swift is as follows:
let destination: Destination = Destination.Home()
when we want to do this :
let destination: Destination = .home
So, how to make these sealed classes more Swift-friendly?
Solution
We are going to use KSwift library, a Swift-friendly api generator for Kotlin/Native frameworks.
Add in root build.gradle
buildscript { repositories { mavenCentral() google() gradlePluginPortal() } dependencies { classpath("dev.icerock.moko:kswift-gradle-plugin:<latest>") } }
Add in project build.gradle
plugins { id("dev.icerock.moko.kswift") } kswift { install(dev.icerock.moko.kswift.plugin.feature.SealedToSwiftEnumFeature) }
Rebuild the project and the kswift library generated for us the Swift api and now we can access to the sealed class in a more Swift way :
let destination: Destination = .home
The problem
If you intend to use a sealed class from a Kotlin multiplatform module in a Swift client, you can access the information, but you won’t be able to use it as an enum in Swift. This is because the generated Swift code for a sealed class does not translate to an enum in Swift.
Indeed if you define a sealed class, such as the one shown below:
sealed class Destination(val path: String, val icon: ImageVector) { object Home : Destination("home", Icons.Rounded.Home) object Storybook : Destination("storybook", Icons.Rounded.Refresh) object Settings : Destination("settings", Icons.Rounded.Settings) }
The only possible way to instantiate a Destination
in Swift is as follows:
let destination: Destination = Destination.Home()
when we want to do this :
let destination: Destination = .home
So, how to make these sealed classes more Swift-friendly?
Solution
We are going to use KSwift library, a Swift-friendly api generator for Kotlin/Native frameworks.
Add in root build.gradle
buildscript { repositories { mavenCentral() google() gradlePluginPortal() } dependencies { classpath("dev.icerock.moko:kswift-gradle-plugin:<latest>") } }
Add in project build.gradle
plugins { id("dev.icerock.moko.kswift") } kswift { install(dev.icerock.moko.kswift.plugin.feature.SealedToSwiftEnumFeature) }
Rebuild the project and the kswift library generated for us the Swift api and now we can access to the sealed class in a more Swift way :
let destination: Destination = .home
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