My app needs to spawn a long-living process (that ...

# compose

[ste]

My app needs to spawn a long-living process (that follows the app lifetime) and it has to communicate with it using stdin/stdout/stderr.
I wanted to go full-compose, but it seems that it's still not possible to rememberSaveable a Parcelable (I need it to encapsulate the Process object); should I just declare an object at this point?

[Csaba Kozák]

What types can be saved is defined by [SaveableStateRegistry], by default everything which can be stored in the Bundle class can be saved.

Your Parcelable should work.

[ste]

Is this correct then? It throws "unable to marshal value Process..."

@Parcelize
data class ParcelableProcess(val value: @RawValue Process) : Parcelable

@Composable
fun rememberProcess(command: String): ParcelableProcess = rememberSaveable {
    ParcelableProcess(Runtime.getRuntime().exec(command))
}

@Composable
fun Test() {
    val process = rememberProcess(command = "whoami")
}

[Csaba Kozák]

I don’t think this problem is related to Compose. javal.lang.Process is not Parcelable.