Hey everyone, I just wanted to show I was experimenting with Compose Desktop multiplatform (based on...

# compose-desktop

[Arjan van Wieringen]

Hey everyone, I just wanted to show I was experimenting with Compose Desktop multiplatform (based on the experimental folder in de JB repo) and was quite amazed. Ofcourse I ran into a lot of weirdness, but nonetheless I was able to pull the following movie off quite fast. It is a common module which contains everything: logic, viewmodel and compose view. The platform specific modules only bootstrap my MandelbrotViewer composable. In the movie we have JVM, iOS iPad Simulator and JS. Quite the difference in platform!

Biggest issue is that I got VM allocation errors when using withContext(Dispatchers.Default) on iOS targets so it is blocking the main thread. I also can't get it to work on Arm64 on Mac. But it's experimental. So... there's that.
I really enjoyed this, and it was very very easy. I can't understate how awesome it would be to have a true multiplatform UI library in Kotlin. I'll post the code later on GitHub.

Screen Recording 2022-10-12 at 20.16.52.mp4

[spierce7]

Thanks for sharing!

I haven’t dug into the new memory manager yet, but Dispatchers.Default isn’t working yet? 😞

Is there a limitation around this I’m not aware of? Is there a bug to track that anyone is aware of in the coroutines library?

[Landry Norris]

I’ve been using Dispatchers.Default on iOS, and can confirm that it does not run on the main thread for me. I’ve been using the new mm for a while.

[Arjan van Wieringen]

Probably just an error on my side. I think I need to switch to the new MM or something.

[Anmol Verma]

@thelumiereguy

[thelumiereguy]

Oh wow! I definitely gotta check this out!

[Arjan van Wieringen]

Here is the git repo: https://github.com/avwie/mandelbrot-compose-multiplatform

[Landry Norris]

If you’re using compose 1.2.0, it would be good to use Kotlin 1.7.20

[Landry Norris]

1.7.20 also brings the new mm by default

[Arjan van Wieringen]

@Landry Norris Ah, now the dispatcher works! But the 1.2.0 compose version for Kotlin 1.7.20 doesn't support JS. You win some you lose some 🙂

[Landry Norris]

You can add kotlin.native.binary.memoryModel=experimental before 1.7.20