has anyone had success setting up the workmanager ...

# koin

[Matthew Laser]

has anyone had success setting up the workmanager capabilities in Koin? the docs are kinda confusing me and I don't really understand what they're saying

[curioustechizen]

I'm using koin with WM and it works. I'm not at my laptop right now but I'll post a snippet later.

I think there's a sample in the Koin repo that I took inspiration from.

[ascii]

I've always just done single { WorkManager.getInstance(androidContext()) }. You can inject the instance and you still retain default androidx startup capabilities.

Indeed, docs for koin-androidx-workmanager are confusing and don't reveal to me what I'd gain if I use it.

[curioustechizen]

The way I understand it (and maybe I'm wrong) is that Koin (or Hilt) offer specific injection features for those components that the user has no control over construction - i.e, that the system constructs for you.

Examples of this are ViewModel and WorkManager Workers. Both these components have some sort of Factory API that you should be using if you want to pass dependencies while constructing them. Koin (and Hilt) offer specific support for these components that helps you hide the Factory boilerplate from you.

[curioustechizen]

WorkManager.getInstance() is just to get an instance of WorkManager. Koin's WM integration allows you to declare and inject Worker instances, not just the WorkManager instance. It allows you to do this:

worker {
    FirmwareUpdateWorker(
        bleRepository = get(),
        appContext = get(),
        firmwareUpdateConfig = get(),
        params = it.get()
    )
}

Here. FirmwareUpdateWorker sub-classes CoroutineWorker and it has constructor parameters that Koin helps you inject.

[curioustechizen]

Elsewhere when you use say val firmwareUpdateWorkRequest = OneTimeWorkRequestBuilder<FirmwareUpdateWorker> () Koin's workerManagerFactory and the above worker DSL work together to obtain the correct instance of the Worker.

[curioustechizen]

At least that's my understanding. Please correct me if I'm wrong!

[ascii]

I see, that would help reduce boilerplate a bit, yeah. Right now I've gotten used to getKoin().inject inside the worker.