动画后应用背景滤镜样式

问题描述 投票:0回答:2

为了进一步了解 React,我使用

react-router-dom
styled-components
framer-motion
创建了一个项目。

我的版本是这样的。

package-json:

    ....
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-icons": "^4.7.1",
    "react-router-dom": "^6.8.1",
    "react-scripts": "5.0.1",
    "styled-components": "^5.3.6",
    ....

我的模态有一个不透明的简单动画,并且容器应用了

backdrop-filter: blur(10px)
。我希望模态开始淡入时立即应用模糊效果。现在,动画已经执行,并且只有在应用背景滤镜之后才执行。我觉得这很奇怪,因为所有其他样式,例如
background-color
,都是从动画开始的那一刻起应用的。

我的组件

Modal.js
:

import { IntroModal, ModalContainer } from './Modal.styled';
import { useEffect, useRef } from 'react';
import { motion } from 'framer-motion';
import { AnimatePresence } from 'framer-motion';
import { IoMdClose } from 'react-icons/io';

const Modal = ({ isOpen, toggleModal, closeOnOutsideClick, children }) => {
  const modalRef = useRef(null);

  useEffect(() => {
    const handleClickOutside = (event) => {
      if (
        closeOnOutsideClick &&
        modalRef.current &&
        !modalRef.current.contains(event.target)
      ) {
        toggleModal();
      }
    };

    document.addEventListener('mousedown', handleClickOutside);
    return () => {

      document.removeEventListener('mousedown', handleClickOutside);
    };
  }, [modalRef, closeOnOutsideClick, toggleModal]);
  const closeButtonStyle = {
    color: 'white',
    fontSize: '1.5rem',
    cursor: 'pointer',
    filter: 'drop-shadow(0px 0px 2px #000)',
  };
  !isOpen
    ? (document.body.style.overflow = 'hidden')
    : (document.body.style.overflow = 'auto');
  return (
    <AnimatePresence>
      !isOpen && (
      <motion.div
        style={isOpen ? { display: 'none' } : null}
        initial={{ opacity: 0 }}
        animate={{ opacity: 1 }}
        exit={{ opacity: 0 }}
        key={isOpen}
      >
        <IntroModal>
          <ModalContainer ref={modalRef}>
            <button onClick={toggleModal}>
              <IoMdClose style={closeButtonStyle} />
            </button>
            {children}
          </ModalContainer>
        </IntroModal>
      </motion.div>
      )
    </AnimatePresence>
  );
};
export default Modal;

Modal.styled.js

import styled from 'styled-components';

export const IntroModal = styled.div`
  position: fixed;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 11;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);

    button {
      position: absolute;
      top: 0.3rem;
      right: 0.3rem;
      padding: 0.5rem;
      border: none;
      background: transparent;
      transition: transform 0.2s ease-in-out;
      &:hover {
        transform: scale(1.1);
      }
    }

    img {
      width: 50%;
      box-shadow: 0 0 15px #000;
      margin-top: 1rem;
    }

    p {
      font-weight: bold;
      font-size: 1rem;
      padding: 0 1rem;
    }
`;

export const ModalContainer = styled.div`
  backdrop-filter: blur(10px);
  position: absolute;
  top: 50%;
  width: 30%;
  background-color: rgba(38, 50, 50, 0.5);
  text-align: center;
  transform: translateY(-50%);
  padding: 1rem 0.2rem 0.5rem;
  border-top: 0.7px solid #b6b6b666;
  border-right: 0.7px solid #8e8e8e66;
  border-bottom: 0.7px solid #000;
  border-left: 0.7px solid #77777766;
  border-radius: 18px;
  box-shadow: 0 0 1rem 0 #000;
  min-height: 200px;
  display: inherit;
  flex-wrap: wrap;
  flex-direction: row;
  justify-content: center;
  align-items: center;

  @media screen and (max-width: 768px) {
    width: 80vw;
    height: 80vh;
  }
`;

export const ModalWrapper = styled.div`
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 50%;
  height: 25%;
  font-size: 2rem;
`;

这是它现在外观的 gif:

我尝试将样式直接应用于组件,例如

style={backdropFilter: blur(10px)
,并将其包含在动画中,如下所示(分别在外部
motion.div
ModalContainer
中尝试过):

      <motion.div
        style={isOpen ? { display: 'none' } : null}
        initial={{ opacity: 0, backdropFilter: 'blur(0px)' }}
        animate={{ opacity: 1, backdropFilter: 'blur(10px)' }}
        exit={{ opacity: 0, backdropFilter: 'blur(0px)' }}
        key={isOpen}
      >
        <IntroModal>
          <motion.ModalContainer ref={modalRef}
              initial={{ opacity: 0, backdropFilter: 'blur(0px)' }}
              animate={{ opacity: 1, backdropFilter: 'blur(10px)' }}
              exit={{ opacity: 0, backdropFilter: 'blur(0px)' }}
              key={isOpen}
          >
            <button onClick={toggleModal}>
              <IoMdClose style={closeButtonStyle} />
            </button>
            {children}
          </motion.ModalContainer>
        </IntroModal>
      </motion.div>

非常感谢任何提示和建议!

reactjs styled-components framer-motion css-filters backdrop
2个回答
1
投票

我不相信你可以制作动画

backdrop-filter: blur
,所以你只看到它的两种状态 -
blur(0)
blur(10px)
,而不是所有中间动画步骤,所以看起来它是在其他转换之后应用的完成。

这个答案建议从

backdrop-filter: blur(10px) opacity(0);
backdrop-filter: blur(4px) opacity(1);
进行动画处理,因为
backdrop-filter: opacity
可以进行动画处理。


0
投票

我有完全相同的问题;当任何与变换相关的动画触发时,模糊效果就会消失。不确定问题是来自 CSS 还是 Framer-Motion。 但如果问题归咎于 Framer-Motion,我想你可以使用 React-Transition-Group 来实现这个动画,也许问题就可以解决。一旦找到解决方案,我会写另一个答案。 🤷

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