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#compose
  • l

    Leland Richardson [G]

    05/23/2019, 5:01 PM
    explaining everything would have been way too much, so i picked what i felt were most foundational concepts
  • j

    jtravis

    05/23/2019, 6:22 PM
    Have there been any blog entries about how unit tests will work with these new constructs?
  • l

    Leland Richardson [G]

    05/23/2019, 6:48 PM
    no. testing APIs are only theoretical at this point, so it would be difficult to blog about them.
  • f

    Fudge

    05/24/2019, 7:55 PM
    I really hope in Compose this "go look in some XML file" system won't be the norm. I've changed my mind
  • m

    miha-x64

    05/24/2019, 8:26 PM
    There may be an adapter to resources which returns an Observable of the requested resource. But Compose is about re-invoking 
    render
    on any change, single value change is not very easy to use with it.
  • l

    Leland Richardson [G]

    05/24/2019, 8:32 PM
    since resources are based on context, grabbing them would probably involve an effect which grabbed the Context ambient. This would subscribe it to context changes automatically
  • l

    Leland Richardson [G]

    05/24/2019, 8:32 PM
    so it shouldn’t be too hard
  • m

    miha-x64

    05/24/2019, 9:08 PM
    Resources could invalidate within a single context (changingConfigurations)
  • r

    Ryan Mentley

    05/24/2019, 9:12 PM
    Yeah, we likely need to treat the whole Context as a model somehow (for instance, this would be how you'd handle different layouts based on screen size)
  • r

    Ryan Mentley

    05/24/2019, 9:13 PM
    so whatever solution works for that would work for making it observe, say, locale changes
  • r

    Ryan Mentley

    05/24/2019, 9:13 PM
    except that it'd probably be something sort of implicit for things like strings
  • r

    Ryan Mentley

    05/24/2019, 9:13 PM
    That's a bit of speculation though, since we don't have a fleshed-out story there yet
  • a

    Adam Powell

    05/24/2019, 9:42 PM
    Other fun things still to consider include any sort of multi-locale handling, runtime provided resources...
  • t

    themishkun

    05/24/2019, 9:44 PM
    The 
    @Model
    annotation reminds me about a Hoplon framework for clojurescript frontend. Same as Hoplon, It is a form of FRP, as far can I see. But where is FRP, there is backpressure problem. Any plans on how to handle that?
  • a

    Adam Powell

    05/24/2019, 9:48 PM
    Naively, (and it'd probably work just swell for most cases,) 
    @Model
    frames could be endpoints of FRP streams like 
    kotlinx.coroutines.flow
    and take the latest values going into a pending composition
  • a

    Adam Powell

    05/24/2019, 9:49 PM
    If you for some reason wanted to deliberately throttle the upstream we could probably provide for that
  • a

    Adam Powell

    05/24/2019, 9:49 PM
    Dunno if it would directly be 
    @Model
    at that point though
  • l

    Leland Richardson [G]

    05/24/2019, 9:51 PM
    not sure if that answers your question though
  • a

    Adam Powell

    05/24/2019, 9:53 PM
    @Model
    gives a nice shortcut to latest snapshots
  • j

    Jacob Applin

    05/24/2019, 9:54 PM
    From looking at the examples the composed methods look like a dsl to me as opposed to an object with constructor arguments ie:
    Copy code
    fun dsl() {
	Column {
		Text("Hello")
		Image("<https://image>")
		Array(2) { Text("$it") }
	}
}

fun composition() {
	Column(
		Text("Hello"),
		Image("<https://image>"),
		*Array(2) { Text("Hello") }
	)
}
  • a

    Adam Powell

    05/24/2019, 9:54 PM
    And yeah you can build some very FRP type constructs on either side of it
  • j

    Jacob Applin

    05/24/2019, 9:55 PM
    was wondering if an api shape more similar to the composition method was/is being considered
  • a

    Adam Powell

    05/24/2019, 9:56 PM
    Yes, it was considered and we went with the current direction for a whole host of reasons 🙂 if it's not in a published faq already it should be
  • a

    Adam Powell

    05/24/2019, 9:57 PM
    @Leland Richardson [G] do you have a canned paste for this yet?
  • l

    Leland Richardson [G]

    05/24/2019, 9:58 PM
    @Adam Powell no. but perhaps a blog post discussing the various things considered would be appropriate
  • a

    Adam Powell

    05/24/2019, 9:58 PM
    Very much so
  • a

    Adam Powell

    05/24/2019, 9:59 PM
    It's elicited some rather strong responses in here so far 🙂
  • j

    Jacob Applin

    05/24/2019, 9:59 PM
    I'm partial to the version where it's all building several objects, as it let's you do cool stuff like this:
  • j

    Jacob Applin

    05/24/2019, 10:01 PM
    where Primary, and Secondary are just objects that represent some functionality that styles the button, and Material is just 16.dp
  • l

    Leland Richardson [G]

    05/24/2019, 10:02 PM
    what part of this do you think is difficult to do in the approach we have taken?
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