Hey guys, I would really appreciate if I could get...

# compose-ios

[Fudge]

Hey guys, I would really appreciate if I could get your experience regarding performance while running Compose apps on iOS (jank is lag spikes /fps drops for those not familiar with the term)
(Running in Release)

🔥 I've had no jank or fps issues
👀 There is some initial jank but after that it runs smoothly
🥶 Jank occurs occasionally
💤 I often find it difficult to reach the target frame rate of the device

[Filip Wiesner]

are we talking about release or debug build?

[darkmoon_uk]

...asking the key questions; Debug/Release is a big deal with Compose in general not only iOS 👌

[Fudge]

Release, obviously
I don't care about lag during development

[Fudge]

And thanks guys, looking forward to hearing more

[Filip Wiesner]

It may be obvious to you but not everyone

[Fudge]

@Filip Wiesner I guess you are right

[Filip Wiesner]

I am interested in the results as well. Thanks for editing the original message so that the results are not skewed 🤝

[Max]

🔥 👀 i selected both. Actually on iPhone 14 Pro Max mostly no jank/fps issues. The only times i observe it is due to implementation issues on my end. I have quite complex lazycolumns which is on my end to fix. Or dialogs appearing i know sometimes my setup with a statemachine is not 100% perfect so the show animation sometimes lags. But these are all on my end
Pure compose render lag i do not observe

[Dmitriy Tarasevich]

I'm in the process of pitching compose iOS at my company and part of it is evaluating the hitch. It seems as though everyone notices something when scrolling slowly through lazy columns.

[Max]

@Dmitriy Tarasevich interesting, which iPhones do you use for the testing? i can only speak for newer iPhones atm, and lazy list can be completely smooth on CMP on iOS given it’s correctly implemented. It supports even 120hz iirc. Do you have a minimal code sample? would like to compare on my device too

[Rok Oblak]

I constantly have jank on keyboard opening and pushing scaffold footers upwards.