:android-wave: I'm having reeeeeally slow composable preview rendering time in Android Studio. Betw...

# compose

[BenjO]

👋 I'm having reeeeeally slow composable preview rendering time in Android Studio. Between 30s if I'm lucky, up to 1min.
I'm using
• Windows 10 (cpu 8 cores, 24GB RAM)
• Android Studio Arctic Fox 2020.3.1 Canary 2
• Android Gradle Plugin 7.0.0-alpha02
• Kotlin to 1.4.20
• Compose version to 1.0.0-alpha08.
I disabled my antivirus and added rules to exclude project files, but still no luck...
I'm previewing one composable at a time.
I tested few weeks ago on a MacBook, it was much much faster.

Performance might not be a major concern right now, but if someone has a clue on how to improve it a bit, I take it !

[Bryan Herbst]

Agreed- between Alpha 08 and AS 2020.3 something got super slow this week for the preview

[Colton Idle]

Do you by any chance use the dependency-analysis plugin?

https://github.com/autonomousapps/dependency-analysis-android-gradle-plugin

[BenjO]

I'll give the plugin a try and let you know. Thanks

[Colton Idle]

Oh no. My point was that the plugin on 0.68 and lower had an issue where it made everything slow. 😃
No need to add it I think

[BenjO]

😅 ahah ok. No I'm not using it.
I found that even an empty project is slow to show previews on Windows.
I don't know how to specifically monitor preview time (because I don't know if it uses gradle), but I recorded what's happening on my computer after creating a blank compose project.

blank_compose_project_slow_preview.avi

[BenjO]

Added a contribution to https://issuetracker.google.com/issues/174779271