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kotlinlang

I heard that having R8 disabled will have a significant impact on Compose Render time. I was just reading this <https://engineering.premise.com/measuring-render-performance-with-jetpack-compose-c0bf5814933|article> about it. I was just wondering if Google recommends to enable R8 for compose?

Does R8 have specific optimizations for Compose?

no, but many of its general-purpose optimizations are very helpful for compose

lambda-heavy code in particular tends to benefit quite a bit

not to mention it will omit a lot of unused code; any parts of the compose libraries themselves that you aren't using, any `@Preview` functions and associated utilities that you may have in your existing source files...

Is stripping @Preview composables a specific optimization or just due to the fact that they're not called explicitly? What if we do call them from somewhere, they're not stripped then right?
What if a library uses them, like <https://github.com/airbnb/Showkase|showkase> uses them from the generated code :thinking_face:

the result of not being called explicitly. If you generate code that calls them, that will still work.