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Has anyone used `contentType` in `LazyColumn`  ? I’m trying to implement a multi type List, but I’m facing serious performance issue

What type of performance issues are you having?  Compose is very janky at the moment in debug builds, so it’s possible that you are experiencing that and should try deploying a release build to a physical device and seeing if you still have issues.

As for the “multi type list”, there’s no such thing with LazyColumn to my knowledge.  It just has items, and each item has emitted UI.  There’s no real equivalent to the recyclerview approach of row types.

I’m aware of compose issues with debug builds, I’m facing UI jank when scrolling my list in release build on a physical device

You can use `item`  or `items`  to emit `LazyRow` in a `LazyColum`  to build a “multi type list”

As far as I understand contentType should just be something that is the same (compared with a == probably) for items that emit the same exact composable. But it's true that I haven't found a lot of documentation about it.