iOS Build Doesn't Work

[gmitch215]

Main Issue

The KorGE iOS Build doesn't function correctly. Opening the app on my phone makes it instantly crash, causing a SIGABRT.

The issue seems to be in korlibs-io, where the app lacks permissions for storage. The app works correctly on JVM (Desktop) and Android, so it might be something with the Kotlin/Native wrapper.

I built it with gradlew build and opened build/platforms/ios in XCode. I archived and properly signed it to TestFlight. I also had to manually fix the other issues that are below this one.

Full Error:
https://hasteb.in/nv10iAKl7js8Qpi

Relevant Code:

val root: VfsFile = applicationDataVfs["combinatory_data"]

val settingsFile: VfsFile = root["settings.json"]

@Suppress("unchecked_cast")
suspend fun loadSettings() {
    // 'root' will exist at this point
    if (!settingsFile.exists())
        settingsFile.writeString("{}")

    // ...
}

Other Issues:

• icon80.png doesn't exist and isn't used anymore, and should be replaced with icon87.png.
• icon1024.png can't be transparent or have an alpha channel, so I copied it and turned it off.

[soywiz]

Do the crash reproduces on the simulator? I tried the simulator right now and it seems to work properly (at least the hello world)

[gmitch215]

The crash is related to the write function in korlibs-io. Does the hello world project use that?

[soywiz]

Nope, no write in the hello-world, but does reading for the image.

Can you put a try...catch. Does the combinatory_data folder exists in the applicationDataVfs?

ensureParents would create ancestor folders if required:

settingsFile.ensureParents().writeString("...")

[gmitch215]

I'll attempt with a try/catch. And yes, combinatory_data and root exist at that point, but I'll try with ensureParents.

Can you try the iOS simulator with a write function?

[soywiz]

Throws an exception (if the file doesn't exist) but doesn't crashes.

./gradlew runIosSimulatorDebug

[gmitch215]

I'll try it in the CREATE stream mode when possible. The Exception might be causing the SIGABRT.

It's weird that this only happens on iOS. I don't get this kind of behavior on Android or on Desktop.

Would you happen to have access to an iPhone & Apple Developer Account you can test on? I probably won't be able to re-test it for a few hours.

[soywiz]

I sold my iphone in my last minimalism step. I still don't understand why there are two variants: simulator and device since on M1* machines it is using ARM64 already. I could ask someone to lend me iphone for checking, but if you can figure it out it would be nice because that would likely take a few days.

[gmitch215]

Tried create, getting a similar stacktrace.

New Stacktrace: https://hasteb.in/w23F20yUyevf33L

Relevant Code

suspend fun main() = Korge(
    gameId = ID,
    title = TITLE,
    windowSize = SIZE,
    backgroundColor = MAIN_COLOR,
    icon = ICON
) {
    container = sceneContainer(defaultTransition = TRANSITION)
    container.addTo(this)
    loadingSequence(this)
}

suspend fun loadingSequence(stage: Stage) {
    // ...
    // I/O
    loaded = withContext(Dispatchers.CIO) {
        // Storage
        if (!root.exists()) root.mkdirs()

        loadSettings()
        // ...
    }
}

val root: VfsFile = applicationDataVfs["combinatory_data"]

val settingsFile: VfsFile = root["settings.json"]

@Suppress("unchecked_cast")
suspend fun loadSettings() {
    if (!settingsFile.exists())
        settingsFile.open(VfsOpenMode.CREATE).use { it.writeString("{}") }

    val json = Json.parse(settingsFile.readString()) as Map<String, Any>
    Setting.load(json)
}

[gmitch215]

@soywiz Any updates?

[soywiz]

I'm on an hiatus and won't code or check messages in that time; will return around ~ early December.

[gmitch215]

@soywiz Any updates?

[gmitch215]

@soywiz Pinging you once again.