93 lines
2.4 KiB
TypeScript
93 lines
2.4 KiB
TypeScript
import type { PropsWithChildren, ReactElement } from 'react';
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import { StyleSheet, ViewStyle, StyleProp } from 'react-native';
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import Animated, {
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interpolate,
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useAnimatedRef,
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useAnimatedStyle,
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useScrollViewOffset,
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} from 'react-native-reanimated';
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import { ThemedText, ThemedView } from '@/components/theme/Theme';
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import { useBottomTabOverflow } from '@/components/ui/TabBarBackground';
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import { Colors } from '@/constants/Colors';
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import { useColorScheme } from '@/hooks/useColorScheme';
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const HEADER_HEIGHT = 150;
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type Props = PropsWithChildren<{
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headerImage?: ReactElement;
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headerBackgroundColor?: { dark: string; light: string };
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headerHeight?: number;
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headerTitle?: ReactElement;
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}>;
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const ParallaxScrollView = ({
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children,
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headerImage = <ThemedView />,
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headerBackgroundColor = { light: Colors.light.accent, dark: Colors.dark.accent },
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headerHeight = HEADER_HEIGHT,
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headerTitle = <ThemedText />,
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}: Props) => {
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const scheme = useColorScheme() ?? 'dark';
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const scrollRef = useAnimatedRef<Animated.ScrollView>();
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const scrollOffset = useScrollViewOffset(scrollRef);
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const bottom = useBottomTabOverflow();
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const headerAnimatedStyle = useAnimatedStyle(() => {
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return {
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transform: [
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{
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translateY: interpolate(
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scrollOffset.value,
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[-headerHeight, 0, headerHeight],
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[-headerHeight / 2, 0, headerHeight * 0.75],
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),
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},
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{
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scale: interpolate(scrollOffset.value, [-headerHeight, 0, headerHeight], [2, 1, 1]),
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},
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],
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};
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});
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return (
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<ThemedView style={styles.container}>
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<Animated.ScrollView
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ref={scrollRef}
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scrollEventThrottle={16}
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scrollIndicatorInsets={{ bottom }}
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contentContainerStyle={{ paddingBottom: bottom }}
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>
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<Animated.View
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style={[
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styles.header,
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{
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backgroundColor: headerBackgroundColor[scheme],
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height: headerHeight,
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},
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headerAnimatedStyle,
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]}
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>
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{headerImage}
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{headerTitle}
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</Animated.View>
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<ThemedView style={styles.content}>{children}</ThemedView>
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</Animated.ScrollView>
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</ThemedView>
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);
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};
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export default ParallaxScrollView;
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const styles = StyleSheet.create({
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container: {
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flex: 1,
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},
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header: {
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overflow: 'hidden',
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},
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content: {
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flex: 1,
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padding: 32,
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gap: 16,
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overflow: 'hidden',
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},
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});
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