Is there any link available to understand internals of compose iOS? Curious to know how is it differ...

# compose-ios

[Sanjeeviraj M]

Is there any link available to understand internals of compose iOS?
Curious to know how is it different from Flutter, and how is it different from Android Compose.

[Nikita Lipsky]

I doubt for now but stay tuned

[Sanjeeviraj M]

Thanks

[Landry Norris]

As of right now, the best link to understand the internals is https://github.com/JetBrains/compose-multiplatform-core/tree/jb-main

[Landry Norris]

It seems like the runtime is mostly shared, so state management, recomposition, and all of that should be the same as Android (technically behind by a month or 2). The main difference is UI, where you’ll want to look at either the compose:ui module for high level code, or at skiko for the lower-level integration. Skiko github: https://github.com/JetBrains/skiko

[Oleksandr Karpovich [JB]]

Not specifically about ios, but about the Compose internals https://jorgecastillo.dev/book/

[Landry Norris]

How up to date is the book? I know there’s been a lot of internal changes in Compose, and there’s a lot more still in progress.

[Oleksandr Karpovich [JB]]

If I remember correctly this book went out ~1.5 year ago. I'm not sure if it covers all the recent changes. Some core things about runtime probably still relevant.

[Alejandro Rios]

I think they are in this slack @Jorge Castillo @shikasd (not gonna tag them) 😅

[Marcin Wisniowski]

If I remember correctly this book went out ~1.5 year ago

As far as I see the book is still unfinished, currently the page says it's 85% written. Would be interesting for it to be outdated before it's even done. 😄

[wenjie.lu]

similar to Android’s ComposeView , it base on uikit View to custom canvas.If I say something wrong, please correct me.

[Sanjeeviraj M]

Well i have explored the code. Found skia is bundled with iOS. Skia is already available in Android. The compose core uses skia for rendering.
They have even explained it a little bit in Kotlin conf

[Stefan Oltmann]

@Sanjeeviraj M Do you remember in which talk this was? I may have missed this.

[Alejandro Rios]

I think is this

one▾

[Oleksandr Karpovich [JB]]

https://youtu.be/03T-ARIo0t8?t=18746▾

- with time point

[Sanjeeviraj M]

https://www.youtube.com/watch?v=03T-ARIo0t8▾

Talk about Compose iOS Timestamp - 5:13