reduced scrollEventThrottle on android (Ticket 4885) #3856
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M-i-k-e-l
reviewed
Dec 11, 2025
src/components/carousel/index.tsx
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| showsVerticalScrollIndicator={false} | ||
| decelerationRate="fast" | ||
| scrollEventThrottle={200} | ||
| scrollEventThrottle={Constants.isAndroid ? 16 : 200} // Android needs 16ms throttle to reliably catch loop boundary during fast swipes |
Collaborator
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Could you please check with the user if this is a regression from RN77? If yes, please start the comment with // TODO: RN 77
I would also add (Ticket 4885) at the end
Is this easy to reproduce in the public demo?
ZivSa1
changed the title
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Description
On Android, the scrollEventThrottle of 200ms was too slow to reliably detect when the scroll landed on a cloned page during fast swipes. This caused the carousel to get stuck on clone pages instead of jumping back to the real page, breaking the infinite loop behavior.
The fix reduces scrollEventThrottle to 16ms on Android to ensure the onScroll handler catches the out-of-bounds position and triggers the loop jump-back.
Changelog
scrollEventThrottle={Constants.isAndroid ? 16 : 200}
Additional info
Ticket 4885