Trying to find the easiest way to use a KMM library as a dependency for separate iOS, Android, and p...

# multiplatform

[Samuel Michael]

Trying to find the easiest way to use a KMM library as a dependency for separate iOS, Android, and possibly Web, any suggestions?

[Derek Ellis]

What do you mean? You should be able to use any KMP library in a KMP project

[Derek Ellis]

As long as the library supports the appropriate targets

[Samuel Michael]

Thanks for responding, I mean I am setting up a multiplatform library for a pre-existing iOS app and Android app

[Samuel Michael]

I want to begin extracting shared logic into the library to reduce duplication

[Samuel Michael]

Wondering the best way to access the library and set up the development environment for a demo I am doing

[Samuel Michael]

For example: Should I create a giant folder with both apps and the library all inside and try to reference it from the apps using gradle system and the xcodeproj=./iosApp
Or publish the library to a local or online repo and use it as a dependency that way

[Samuel Michael]

Ideally I want a large team of developers to be able to start moving snippets of code into the library but still having trouble setting up the apps to support that

[Derek Ellis]

I would combine them into one big project folder. That's the general convention when it comes to Android/iOS apps with KMM.

[Samuel Michael]

Ok yes I went that way, now trying to import the shared module into iOS having some problem

[Derek Ellis]

Publishing it as a local/online library and then using it as a dependency would create a pretty inconvenient workflow since you'd have to make changes to the shared logic, and then wait for your changes to be published, before you can then run it

[Samuel Michael]

Also my iOS app can only be run as a workspace so I am trying to figure that part

[Samuel Michael]

Have to manually run xcodebuild -workspace instead of the default xcodebuild -project

[Derek Ellis]

Are you using the cocoapods plugin?

[Samuel Michael]

Nope didn’t hear about that

[Samuel Michael]

I mean know a little about cocoapods, but which plugin is that?

[Derek Ellis]

I would recommend using that. Makes it really easy to set up the shared Kotlin module as a pod dependency in your iOS app

[Derek Ellis]

https://kotlinlang.org/docs/reference/native/cocoapods.html

[Samuel Michael]

cool so is that instead of the pack for xcode gradle task?

[Derek Ellis]

Yes

[Samuel Michael]

Awesome that might be just what I need then 🙏 Thanks

[Samuel Michael]

Weird I ran xcodebuild -workspace in the terminal and it succeeded but the simulator didn’t launch in IDE or externally

[Derek Ellis]

I usually just run it from within xcode rather than the terminal

[Samuel Michael]

Created a YouTrack issue to allow user to choose from running KMM iOS app as workspace or project

[Samuel Michael]

Yeah trying to do from Android Studio for fun, but AppCode or Xcode works too I guess

[Derek Ellis]

Have you tried the new KMM plugin for AS?

[Samuel Michael]

Yeah that is what I am using but it uses xcodebuild -project as a default

[Samuel Michael]

So I am trying to see If i can edit the terminal command it uses under the hood to use a workspace flag

[Derek Ellis]

Oh huh, I see

[Samuel Michael]

[Derek Ellis]

that is kind of odd since with the cocoapods plugin you don't really have a choice but to use the workspace

[Samuel Michael]

Haha cool You are right I should focus on getting access to the shared library from iOS anyway

[Samuel Michael]

Running iOS simulator in Android Studio is not practical since Swift syntax highlighting doesn’t exist yet

[Samuel Michael]

Hey still trying to add the framework using cocoapods plugin. For some reason it didn’t like when I tried to add the plugin everything turned red.

[Samuel Michael]

Also wanted to ask if you had any idea how to add a podfile to Carthage setup since we use Carthage to manage dependencies

[Samuel Michael]

Or just modify this

val packForXcode by tasks.creating(Sync::class) {
    group = "build"
    val mode = System.getenv("CONFIGURATION") ?: "DEBUG"
    val sdkName = System.getenv("SDK_NAME") ?: "iphonesimulator"
    val targetName = "ios" + if (sdkName.startsWith("iphoneos")) "Arm64" else "X64"
    val framework = kotlin.targets.getByName<KotlinNativeTarget>(targetName).binaries.getFramework(mode)
    inputs.property("mode", mode)
    dependsOn(framework.linkTask)
    val targetDir = File(buildDir, "xcode-frameworks")
    from({ framework.outputDirectory })
    into(targetDir)
}

pack for Xcode to use find Carthage directory