meliorence/react-native-snap-carousel

Snapping between items is very jerky

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#189 建立於 2017年10月18日

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 (30 留言) (19 反應) (0 負責人)JavaScript (10,045 star) (2,223 fork)batch import
*enhancementhelp wantedreact-native bug

描述

Hi guys,

I've searched around a lot and haven't found any information about this, but even the simplest of tests with the carousel I find are very jerky.

When swiping between items in the carousel, I notice that as soon as I release my finger, the speed of the snap changes. This means when I quickly flick to the next item, it instantly slows the snap speed so it looks like the swipe "hit a wall."

I'm tested this using Expo on an iPhone 7.

I've compared this to the native ScrollView with pagingEnabled or even snapToInterval and that has a much smoother effect.

Is this purely because the "snapping" action can't work out how much force a user swiped with? Or am I completely missing something?

I can probably put together an Expo snack to demonstrate the issue if need be.

貢獻者指南

技術棧
javascriptreactandroidios
領域
mobilefrontend
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
half day
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
React Native basicsUnderstanding of gesture handlersAnimation in React Native
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
45
研究方向
Investigate the carousel's snapping animation logic in the source code (e.g., Carousel.js). Compare the behavior with native ScrollView's pagingEnabled. Review the 30 comments for any proposed fixes or insights. Consider creating an Expo snack to reproduce the issue for precise debugging.