[Animated] Optimize by moving animation to a high priority thread

[oblador]

Loving the Animated API, but in some areas, such as interpolating on scroll events, the performance is not always 100%. There's been talk of moving that part off the JS thread into native code since 0.8.0, but couldn't find an issue tracking this.

I think animation performance affects UX of basically every app and will solve some issues with Navigator among others. Would be nice to hear if this is being worked on or if help is wanted.

[skv-headless]

👍

[chirag04]

it would be helpful to add help wanted tag if this is not worked on at fb.

cc @ide @sahrens @vjeux

[PhilippKrone]

@oblador Does it mean that you are going to work on this? ;)

[oblador]

@PhilippKrone: Talked to vjeux on reactiflux a few days ago about it and from I what understood it's being worked on and that he recently spun up a whole team just working with performance optimizations.

[vjeux]

Right now the focus of the team is on start performance. No one is actively working on animation perf

[oblador]

Related Product Pains post.

[mkonicek]

Hi there! This issue is being closed because it has been inactive for a while.

But don't worry, it will live on with ProductPains! Check out its new home: https://productpains.com/post/react-native/animated-optimize-by-moving-animation-to-a-high-priority-thread

ProductPains helps the community prioritize the most important issues thanks to its voting feature.
It is easy to use - just login with GitHub.

Also, if this issue is a bug, please consider sending a PR with a fix.
We're a small team and rely on the community for bug fixes of issues that don't affect fb apps.

[jnak]

@mkonicek There is already a product pains post here that has already 151 votes.

You should delete the one you just created

[ide]

This is landing soon for Android anyway.

[oblador]

@ide: Yes, that's very exciting; props to the exponent team for that! Still needed for iOS though :-)