8b0e575f64
* adjust flatlist perf settings * calculate initial num to render based on screen height * adjust window size * don't react to screen height changes
11 lines
344 B
TypeScript
11 lines
344 B
TypeScript
import React from 'react'
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import {Dimensions} from 'react-native'
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const MIN_POST_HEIGHT = 100
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export function useInitialNumToRender(minItemHeight: number = MIN_POST_HEIGHT) {
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return React.useMemo(() => {
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const screenHeight = Dimensions.get('window').height
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return Math.ceil(screenHeight / minItemHeight) + 1
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}, [minItemHeight])
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}
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