Well I am trying to figure out how to do this with no di at least.

# multiplatform

[Yauhen Pelkin]

Well I am trying to figure out how to do this with no di at least.

[russhwolf]

You have a dependency. You're going to have to get it somehow. The strategy isn't going to be all that different from what you'd do in a non-mpp android app. Either make it a constructor parameter of a class that isLocationAvailable() is a member of, or you'll need to save a top-level reference to your application during its onCreate()

[Kris Wong]

or expect class Context and pass a Context to the function

[russhwolf]

yeah it can be a function parameter instead of a class thing. In practice though I usually see this as part of a LocationManager sort of class and it's nice if you can pass the context just once at initialization instead of needing to pass it for every method call

[Yauhen Pelkin]

make it a constructor parameter of a class that

so, as i understand in this case instance should be created on android-platform (app) side and passed to commonMain code?

[russhwolf]

yeah

[Yauhen Pelkin]

Now i has something like this:

class MyApp : Application() {

    override fun onCreate() {
        super.onCreate()
        Core.start()
    }
}

Core - is object in commonMain which (according to my idea) will start “business logic processing”
But it seems it should look like
Core.start(thousands of ContextWrapper, LocationManagerWrapper, whateverPlatformSpecieficWrapper)
Am I right?

[russhwolf]

Oh if you already have an injection point like that it helps. You could just define fun Core.start(/* Android dependencies */) in your Android sources and fun Core.start(/* iOS dependencies*/) on iOS, and wire whatever platform-specific stuff you need in there

[russhwolf]

Might just be Core.start(applicationContext) on Android and Core.start() on iOS if that's the only dependency you have

[russhwolf]

If it starts getting unwieldy, that's where having some sort of dependency manager is helpful

[Yauhen Pelkin]

Something seems to have cleared up 🙂 thank you!