Nik*_*las 2 reactjs framer-motion
在我的反应应用程序中,我需要在组件之间切换,就像在轮播中一样。我发现这个示例仅使用成帧器运动构建图像轮播:https://codesandbox.io/s/framer-motion-image-gallery-pqvx3 ?file=/src/Example.tsx:1715-1725
我想使其适应组件之间的切换。目前我的页面看起来像这样:
const variants = {
enter: (direction: number) => {
return {
x: direction > 0 ? 100 : -100,
opacity: 0,
}
},
center: {
zIndex: 1,
x: 0,
opacity: 1,
},
exit: (direction: number) => {
return {
zIndex: 0,
x: direction < 0 ? 100 : -100,
opacity: 0,
}
},
}
const Page = () => {
const [[page, direction], setPage] = useState([0, 0])
const paginate = (newDirection: number) => {
setPage([page + newDirection, newDirection])
}
return (
<motion.div
key={page}
custom={direction}
variants={variants}
initial="enter"
animate="center"
exit="exit"
>
<!-- my components, between which I want to switch, should appear here -->
</motion.div>
)
}
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我必须如何构建逻辑才能在组件(幻灯片)之间动态切换?在codesandbox示例中,图像通过数组更改:
const imageIndex = wrap(0, images.length, page);
<motion.img key={page} src={images[imageIndex]} />
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我怎样才能在 jsx 元素之间切换?
编辑
Joshua Wootonn 的答案是正确的,但您custom还需要将道具添加到 以TestComp使动画能够使用动态变体,如下所示:
const TestComp = ({ bg }: { bg: string }) => (
<motion.div
custom={direction}
variants={variants}
initial="enter"
animate="center"
exit="exit"
transition={{
x: { type: "spring", stiffness: 100, damping: 30 },
opacity: { duration: 0.2 },
}}
className="absolute w-full h-full"
style={{
background: bg,
}}
/>
)
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上面的答案中缺少一些东西来使退出动画正常工作。
<AnimatePresence initial={false} custom={direction}>
{page === 0 && <TestComp key="0" bg="rgb(171, 135, 255)" />}
{page === 1 && <TestComp key="1" bg="rgb(68, 109, 246)" />}
{page === 2 && <TestComp key="2" bg="rgb(172, 236, 161)" />}
</AnimatePresence>
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<div style={{ position: "relative", height: "300px", width: "300px" }}>
<AnimatePresence initial={false} custom={direction}>
...
</AnimatePresence>
</div>
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以及子组件上
height: 100%;
width: 100%;
position: absolute;
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工作代码andbox:https://codesandbox.io/s/framer-motion-carousel-animation-wetrf ?file=/src/App.tsx:658-708
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