Hi here… I’m trying out hybrid of RecyclerView and...

# compose

[elye]

Hi here…
I’m trying out hybrid of RecyclerView and ComposeViewHolder.. but looks like everytime it binds, it setContent, cause to it be slower. The profile looks as the image below. How can it be speed up?

FYI, the detail question in.
https://stackoverflow.com/questions/69514265/how-to-make-recyclerview-with-composable-viewholder-render-faster

[adjpd]

Are you running a release build with R8 enabled?

[elye]

I have minifyEnabled true , and see the below triggered. So I believe R8 is enabled. The result is the same.

[seb]

Note that debug builds are considerably slower than release builds and you should never do perf optimisation based on debug builds, especially when it comes to Compose

[Will Shelor]

If you don’t have to do this, I would suggest against it. In my experience, multiple ComposeViews is indeed reasonably slower to render than a single ComposeView or XML. In my testing, what you’ve described is one of the slowest ways of doing Compose. Is there any reason you don’t want to use LazyColumn?

[elye]

It’s partly we can do incremental migration of a big live project. True, having LazyColumn would be ideal.

[Zach Klippenstein (he/him) [MOD]]

You can also put Android views in composables so you could still do incremental migration

[Will Shelor]

I’d say you’ll have better luck converting the full content of your RecyclerView one RecyclerView at a time. The more ComposeViews on a screen at a time, the worse the performance is (it’s not a deal breaker, but if you’ve got a bunch of them it’ll probably be noticeably slow, even on production builds).