Compose's very first recomposition runs synchronou...

# squarelibraries

[jw]

Compose's very first recomposition runs synchronously. If you are using launchMolecule by the time you get the StateFlow returned a single recomposition has run. If you are using moleculeFlow then it will emit immediately, although i'm not sure if that involves posting to the dispatcher or not.

[andrew]

Nothing looks too terribly incorrect here then…. It’s probably an id10t error somewhere 🥴

[andrew]

The events after init sometimes seem to be ignored, is the problem I’m facing

[jw]

Hmm I don't know a lot about the behavior of MutableSharedFlow without any args. I've never used one.

[jw]

Based on https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/-mutable-shared-flow.html it looks like it defaults to rendezvous behavior which means two events sent between recompositions would be impossible

[jw]

i would consider beefing up the extraBufferCapacity to a reasonable number like 64 and then using trySend at the callsite and checking that it was successful or otherwise crashing

[jw]

realistically you should never have 64 events between frames (since you're using a context clock I'm assuming you're tied to frames)

[andrew]

Yeah, it seems that MutableSharedFlow has some other different behavior in that sense. The only reason I was using it was to mitigate the equality checks that occur when emitting to a state flow

[andrew]

I’m seeing some log events that weren’t running initially

[jw]

yeah you definitely shouldn't use a state flow. a channel would be my other suggestion

[andrew]

Haven’t worked with channels much yet, I’ll give it a try 🙂

[andrew]

Oh my dumb fuck self

[andrew]

I forgot to emit the result of the network request, I was pulling my hair over this lol 🥴

[andrew]

Thank you for being my rubber duck rubber duck

[andrew]

I'm back in business 😎😎😎

[Colton Idle]

unrelated: i really want to use molecule. i still dont get it. waiting for it to click. i did watch jakes droidcon talk on it, but if anyone has any pointers or any like tldr that made it click for you. pass it on. 😅

[andrew]

Realistically, you can think of it as another way to process incoming state. It doesn't have to be a presenter like how it's demoed, or used here, but it let's you transform data in a declarative way that's enabled by compose

[andrew]

Or, just to return state based off of the observed result of a side effect

[andrew]

@Colton Idle I reference the presenter in my ViewModel, for example. I go from Repository to Presenter which transforms data into a UI friendly state.

[andrew]

Compose is great at being a state container