mirror of https://github.com/tooot-app/app
32 lines
875 B
TypeScript
32 lines
875 B
TypeScript
/**
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* Copyright (c) JOB TODAY S.A. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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*/
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import { useState } from 'react'
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import { NativeSyntheticEvent, NativeScrollEvent } from 'react-native'
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import { Dimensions } from '../@types'
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const useImageIndexChange = (imageIndex: number, screen: Dimensions) => {
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const [currentImageIndex, setImageIndex] = useState(imageIndex)
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const onScroll = (event: NativeSyntheticEvent<NativeScrollEvent>) => {
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const {
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nativeEvent: {
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contentOffset: { x: scrollX }
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}
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} = event
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if (screen.width) {
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const nextIndex = Math.round(scrollX / screen.width)
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setImageIndex(nextIndex < 0 ? 0 : nextIndex)
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}
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}
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return [currentImageIndex, onScroll] as const
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}
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export default useImageIndexChange
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