프레이머 모션이 포함된 애니메이션 회전목마
26554 단어 javascriptframermotionreact
전제 조건:
React 애플리케이션 생성 및 Npm 모듈 설치
bash 또는 터미널에서 아래 명령을 실행합니다.
npx create-react-app carousel
cd carousel && npm install framer-motion @popmotion/popcorn
앱 구성 요소 업데이트
import React from "react";
import { useState } from "react";
import { motion, AnimateSharedLayout } from "framer-motion";
import Carousel from "./Carousel";
import "./styles.css";
const Pagination = ({ currentPage, setPage }) => {
// Wrap all the pagination Indicators
// with AnimateSharedPresence
// so we can detect when Indicators
// with a layoutId are removed/added
return (
<AnimateSharedLayout>
<div className="Indicators">
{pages.map((page) => (
<Indicator
key={page}
onClick={() => setPage(page)}
isSelected={page === currentPage}
/>
))}
</div>
</AnimateSharedLayout>
);
};
const Indicator = ({ isSelected, onClick }) => {
return (
<div className="Indicator-container" onClick={onClick}>
<div className="Indicator">
{isSelected && (
// By setting layoutId, when this component
// is removed and a new one is added elsewhere,
// the new component will animate out from the old one.
<motion.div className="Indicator-highlight"
layoutId="highlight" />
)}
</div>
</div>
);
};
const pages = [0, 1, 2, 3, 4];
const App = () => {
/* We keep track of the pagination direction as well as
* current page, this way we can dynamically generate different
* animations depending on the direction of travel */
const [[currentPage, direction], setCurrentPage] = useState([0, 0]);
function setPage(newPage, newDirection) {
if (!newDirection) newDirection = newPage - currentPage;
setCurrentPage([newPage, newDirection]);
}
return (
<>
<Carousel
currentPage={currentPage}
direction={direction}
setPage={setPage}
/>
<Pagination currentPage={currentPage}
setPage={setPage} />
</>
);
};
export default App;
캐러셀 컴포넌트 생성
앱의 src 폴더에 Carousel.js를 추가하고 아래와 같이 코드를 업데이트합니다.
import React from "react";
import { useRef } from "react";
import { motion, AnimatePresence } from "framer-motion";
import { wrap } from "@popmotion/popcorn";
// Variants in framer-motion define visual states
// that a rendered motion component can be in at
// any given time.
const xOffset = 100;
const variants = {
enter: (direction) => ({
x: direction > 0 ? xOffset : -xOffset,
opacity: 0
}),
active: {
x: 0,
opacity: 1,
transition: { delay: 0.2 }
},
exit: (direction) => ({
x: direction > 0 ? -xOffset : xOffset,
opacity: 0
})
};
const pages = [0, 1, 2, 3, 4];
const Carousel = ({ currentPage, setPage, direction }) => {
/* Add and remove pages from the array to checkout
how the gestures and pagination animations are
fully data and layout-driven. */
const hasPaginated = useRef(false);
function detectPaginationGesture(e, { offset }) {
if (hasPaginated.current) return;
let newPage = currentPage;
const threshold = xOffset / 2;
if (offset.x < -threshold) {
// If user is dragging left, go forward a page
newPage = currentPage + 1;
} else if (offset.x > threshold) {
// Else if the user is dragging right,
// go backwards a page
newPage = currentPage - 1;
}
if (newPage !== currentPage) {
hasPaginated.current = true;
// Wrap the page index to within the
// permitted page range
newPage = wrap(0, pages.length, newPage);
setPage(newPage, offset.x < 0 ? 1 : -1);
}
}
return (
<div className="slider-container">
<AnimatePresence
// This will be used for components to resolve
// exit variants. It's necessary as removed
// components won't rerender with
// the latest state (as they've been removed)
custom={direction}>
<motion.div
key={currentPage}
className="slide"
data-page={currentPage}
variants={variants}
initial="enter"
animate="active"
exit="exit"
drag="x"
onDrag={detectPaginationGesture}
onDragStart={() => (hasPaginated.current = false)}
onDragEnd={() => (hasPaginated.current = true)}
// Snap the component back to the center
// if it hasn't paginated
dragConstraints={{ left: 0, right: 0, top: 0, bottom: 0 }}
// This will be used for components to resolve all
// other variants, in this case initial and animate.
custom={direction}
/>
</AnimatePresence>
</div>
);
};
export default Carousel;
스타일링
캐러셀의 간단한 스타일로 App.css를 업데이트합니다.
body {
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
overflow: hidden;
background: #09a960;
}
* {
box-sizing: border-box;
}
.App {
font-family: sans-serif;
text-align: center;
}
.slider-container {
position: relative;
width: 600px;
height: 600px;
}
.slide {
border-radius: 5px;
background: white;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
/* position of indicator container */
.Indicators {
display: flex;
justify-content: center;
margin-top: 30px;
}
.Indicator-container {
padding: 20px;
cursor: pointer;
}
.Indicator {
width: 10px;
height: 10px;
background: #fcfcfc;
border-radius: 50%;
position: relative;
}
.Indicator-highlight {
top: -2px;
left: -2px;
background: #09f;
border-radius: 50%;
width: 14px;
height: 14px;
position: absolute;
}
앱 실행
npm start
localhost:3000에서 간단한 애니메이션 Carousel을 볼 수 있습니다.
감사
Reference
이 문제에 관하여(프레이머 모션이 포함된 애니메이션 회전목마), 우리는 이곳에서 더 많은 자료를 발견하고 링크를 클릭하여 보았다 https://dev.to/satel/animated-carousel-with-framer-motion-2fp텍스트를 자유롭게 공유하거나 복사할 수 있습니다.하지만 이 문서의 URL은 참조 URL로 남겨 두십시오.
우수한 개발자 콘텐츠 발견에 전념 (Collection and Share based on the CC Protocol.)