I'd love to know if anyone has explored the Unidirectional Data Flow for Android? I took a unique ap...

# android

[Adam Hurwitz]

I'd love to know if anyone has explored the Unidirectional Data Flow for Android? I took a unique approach implementing it with LiveData + Kotlin as opposed to RxJava. A few major Kotlin benefits with this pattern are the Sealed class and the shallow .copy(..) function.

I'd love any feedback on this new approach! 🙂 🤖

Medium - https://hackernoon.com/android-unidirectional-flow-with-livedata-bf24119e747
YouTube -

https://youtu.be/Elp-Z-pQTpM▾

[bloder]

Undirectional Data Flow It's a great approach, but it's going to be better when Compose gets released and actually I'm using coroutines (Flow extension) to implement a kind of Redux implementation https://gist.github.com/bloderxd/830e92702b92c4cf0906c57e54726e14

[bloder]

but it's a good approach, I'm just pretty excited about compose to use better

[sngrekov]

There is no need to wait for Compose to try Declarative UI on Android, it is already there

[bloder]

how do u try that without Compose? Let's suppose you have this:

fun render(state: MyState) {
 
}

this MyState is the view state, how do u render that today properly with no imperative way? 🤔

[bloder]

of course u can build tools for that, but just with android framework, how do u do?

[bloder]

using databinding?

[sngrekov]

Different ways. You can use declarative UI libraries like Litho, Anko, Anvil which allows exactly this.
But if you still prefer plain old xml for some reason, you can mimic this render() method by your own.

[bloder]

Yeah I can create tools for that but I'm waiting some kind of official support to that.

[sngrekov]

My point is that you don't even need to create one, they are already there. But yes, they are not "official"

[Adam Hurwitz]

Hey @bloder, @sngrekov, I am just seeing these messages now. I switched from Slack web to the app so that I'll receive realtime notifications moving forward! 📬

[Adam Hurwitz]

@bloder, Thank you for the feedback! I haven't explored Compose yet. I've started using Coroutines to handle basic threading use cases, but need to look into the Flow extension. Your code sample is interesting!