abhimuktheeswarar / flywheel Goto Github PK

Hi,

I am trying to implement a very simple State in my KMM project and I run into an exception.
I don't know if I am doing things correctly, here are some details.

versions

• kotlin : 1.5.30
• flywheel : 1.1.4-RC
• kotlinxCoroutines : 1.5.2-native-mt

use case

I would like to State defined in the shared kotlin code base and I would like to collect this State in my Swift view model.

On Kotlin side

• I made an State and corresponding Actions in shared (my state has a boolean value modified by the actions)
• I have SDK kotlin class where I have put a Reducer and a StateReserve

Now on Swift side :

• I have imported flywheel framework and the CoroutinesHelper.swift file
• I have defined the following state in a ViewModel :

final class MyViewModel: ObservableObject {
    let sdk: MySDK

    @Published var myState: MyState = MyState(myBoolean = false)

    init() {
        sdk = MySDK()
        sdk.myStateReserve.states.collect(collector: Collector<MyState> { myState in
            self.myState = myState
        } as! Kotlinx_coroutines_coreFlowCollector) { (unit, error) in
            // code executed if the Flow object is completed
        }
    }

    ..
}

what is happening

So the first thing different from the sample code you provided is that I am forced to cast Collector<MyState> to Kotlinx_coroutines_coreFlowCollector

And surely the problem is here as the Exception is the following, calling init():

Could not cast value of type '_TtGC6iosApp9CollectorCSo18SharedMyState_' (0x11046c4d0) to 'SharedKotlinx_coroutines_coreFlowCollector' (0x10218ae48).

Am I doing the most simple thing to collect a state in Swift ? If not I am interested to know how I can improve my code !
Thank you so much !

(BTW wiki documentation is great !)

Love the library! Great work. I really like the structure and design of it. I am, however, struggling to write unite tests for some code I wrote using this library. Most likely it's just a lack of understanding on my part, but I seem to keep running into deadlock issues when running tests. I'm using the new coroutine test library for testing common code. How would you go about testing SideEffects or Actions in this library?