Hailey
25 lines
732 B
TypeScript
25 lines
732 B
TypeScript
import {useWindowDimensions} from 'react-native'
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import {useSafeAreaInsets} from 'react-native-safe-area-context'
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import {useBottomBarOffset} from 'lib/hooks/useBottomBarOffset'
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const MIN_POST_HEIGHT = 100
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export function useInitialNumToRender({
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minItemHeight = MIN_POST_HEIGHT,
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screenHeightOffset = 0,
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}: {minItemHeight?: number; screenHeightOffset?: number} = {}) {
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const {height: screenHeight} = useWindowDimensions()
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const {top: topInset} = useSafeAreaInsets()
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const bottomBarHeight = useBottomBarOffset()
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const finalHeight =
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screenHeight - screenHeightOffset - topInset - bottomBarHeight
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const minItems = Math.floor(finalHeight / minItemHeight)
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if (minItems < 1) {
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return 1
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}
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return minItems
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}
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