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Ignore bogus onScroll values (#5499)
authored by
Samuel Newman
and committed by
GitHub
4553e6b6
dd2fedb2
+10
-3
+10
-3
src/view/com/pager/PagerWithHeader.tsx
+10
-3
src/view/com/pager/PagerWithHeader.tsx
···
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(e: NativeScrollEvent) => {
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'worklet'
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const nextScrollY = e.contentOffset.y
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scrollY.value = nextScrollY
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runOnJS(queueThrottledOnScroll)()
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// HACK: onScroll is reporting some strange values on load (negative header height).
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// Highly improbable that you'd be overscrolled by over 400px -
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// in fact, I actually can't do it, so let's just ignore those. -sfn
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const isPossiblyInvalid =
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headerHeight > 0 && Math.round(nextScrollY * 2) / 2 === -headerHeight
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if (!isPossiblyInvalid) {
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scrollY.value = nextScrollY
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runOnJS(queueThrottledOnScroll)()
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}
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},
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[scrollY, queueThrottledOnScroll],
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[scrollY, queueThrottledOnScroll, headerHeight],
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)
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const onPageSelectedInner = React.useCallback(