48 lines
1.3 KiB
TypeScript
48 lines
1.3 KiB
TypeScript
import React, {useMemo} from 'react'
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import {TouchableWithoutFeedback} from 'react-native'
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import {BottomSheetBackdropProps} from '@gorhom/bottom-sheet'
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import Animated, {
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Extrapolate,
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interpolate,
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useAnimatedStyle,
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} from 'react-native-reanimated'
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import {msg} from '@lingui/macro'
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import {useLingui} from '@lingui/react'
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export function createCustomBackdrop(
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onClose?: (() => void) | undefined,
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): React.FC<BottomSheetBackdropProps> {
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const CustomBackdrop = ({animatedIndex, style}: BottomSheetBackdropProps) => {
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const {_} = useLingui()
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// animated variables
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const opacity = useAnimatedStyle(() => ({
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opacity: interpolate(
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animatedIndex.value, // current snap index
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[-1, 0], // input range
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[0, 0.5], // output range
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Extrapolate.CLAMP,
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),
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}))
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const containerStyle = useMemo(
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() => [style, {backgroundColor: '#000'}, opacity],
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[style, opacity],
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)
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return (
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<TouchableWithoutFeedback
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onPress={onClose}
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accessibilityLabel={_(msg`Close bottom drawer`)}
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accessibilityHint=""
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onAccessibilityEscape={() => {
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if (onClose !== undefined) {
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onClose()
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}
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}}>
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<Animated.View style={containerStyle} />
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</TouchableWithoutFeedback>
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)
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}
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return CustomBackdrop
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}
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