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Examples / custom-animations / Blur Parallax
Examples / custom-animations / Blur Parallax
Type
Document
Status
Published
Created
Apr 22, 2026
Updated
Apr 22, 2026

{/*

=========================================================================#

This page generated by /scripts/gen-pages.mjs, Don't update it manually#

=========================================================================

*/}

import { Tabs } from 'nextra/components'
import { Callout } from 'nextra/components'
import Demo from '@/components/Demo'

Check out the `blur-parallax` animation demo for the full source code [here](https://github.com/dohooo/react-native-reanimated-carousel/blob/main/example/app/app/demos/custom-animations/blur-parallax/index.tsx)
import * as React from "react";
import { StyleSheet, View } from "react-native";
import Animated, {
	interpolate,
	useAnimatedStyle,
} from "react-native-reanimated";
import type { SharedValue } from "react-native-reanimated";
import Carousel from "react-native-reanimated-carousel";

import { BlurView as _BlurView } from "expo-blur";

import { parallaxLayout } from "@/features/custom-animations/blur-parallax/parallax";

import { SlideItem } from "@/components/SlideItem";
import { window } from "@/constants/sizes";
import { fruitItems } from "@/utils/items";

const BlurView = Animated.createAnimatedComponent(_BlurView);

const PAGE_WIDTH = window.width / 2;

function Index() {
	return (
		<View
			id="carousel-component"
			dataSet={{ kind: "custom-animations", name: "blur-parallax" }}
			style={{
				width: window.width,
				height: 240,
				justifyContent: "center",
				alignItems: "center",
			}}
			<Carousel
				loop
				style={{
					width: window.width,
					height: 240,
					justifyContent: "center",
					alignItems: "center",
					overflow: "visible",
				}}
				contentContainerStyle={{
					width: PAGE_WIDTH,
					overflow: "visible",
				}}
				data={[...fruitItems, ...fruitItems]}
				renderItem={({ index, animationValue }) => (
					<CustomItem index={index} animationValue={animationValue} />
				)}
				customAnimation={parallaxLayout(
					{
						size: PAGE_WIDTH,
						vertical: false,
					},
					{
						parallaxScrollingScale: 1,
						parallaxAdjacentItemScale: 0.5,
						parallaxScrollingOffset: 40,
					},
				)}
				scrollAnimationDuration={1200}
			/>
		</View>
	);
}

interface ItemProps {
	index: number;
	animationValue: SharedValue<number>;
}
const CustomItem: React.FC<ItemProps> = ({ index, animationValue }) => {
	const maskStyle = useAnimatedStyle(() => {
		const opacity = interpolate(animationValue.value, [-1, 0, 1], [1, 0, 1]);

		return {
			opacity,
		};
	}, [animationValue]);

	return (
		<View
			style={{
				flex: 1,
				overflow: "hidden",
				justifyContent: "center",
				alignItems: "center",
				borderRadius: 10,
			}}
			<View style={{ flex: 1, width: "100%" }}>
				<SlideItem index={index} rounded />
			</View>
			<BlurView
				intensity={50}
				pointerEvents="none"
				style={[StyleSheet.absoluteFill, maskStyle]}
			/>
		</View>
	);
};

export default Index;

Examples / custom-animations / Blur Parallax | Dosu