10

我使用样式组件在 CodeSandbox 中有我的应用程序。请参考以下网址 https://lrn6vmq297.sse.codesandbox.io/

每次我进行一些更改时,控制台都会说。

Warning: Prop `className` did not match.

It looks like you've wrapped styled() around your React component (Component), but the className prop is not being passed down to a child. No styles will be rendered unless className is composed within your React component.

并且 UI 未按预期呈现。任何人都知道我为什么会遇到这个问题?请看一下上面的网址。

谢谢

4

4 回答 4

11

基本上,您需要传递this.props.classNameprops.className或解构className生成styled-components并手动将其应用于您要设置样式的组件。否则,您不会将className应用于任何东西,因此不会看到任何样式更改。

工作示例:

编辑样式化组件

components/LinkComponent.js(这functional component接受className生成的styled()props传递给下面创建的样式组件——您需要手动将它们应用到Link组件)

import React from "react";
import PropTypes from "prop-types";
import { Link } from "react-router-dom";

const LinkComponent = ({ className, children, link }) => (
  <Link className={className} to={link}>
    {children}
  </Link>
);

LinkComponent.propTypes = {
  className: PropTypes.string.isRequired,
  link: PropTypes.string.isRequired,
  children: PropTypes.string.isRequired
};

export default LinkComponent;

components/StyledLink.js(导入functional component以上内容并将其传递给styled()——你也可以创建一个样式化的主题来更新styled()元素)

import styled from "styled-components";
import LinkComponent from "./LinkComponent";

const StyledLink = styled(LinkComponent)`
  color: ${props => (!props.primary && !props.danger ? "#03a9f3" : "#ffffff")};
  background-color: ${props => {
    if (props.primary) return "#03a9f3";
    if (props.danger) return "#f56342";
    return "transparent";
  }};
  font-weight: bold;
  margin-right: 20px;
  padding: 8px 16px;
  transition: all 0.2s ease-in-out;
  border-radius: 4px;
  border: 2px solid
    ${props => {
      if (props.primary) return "#03a9f3";
      if (props.danger) return "#f56342";
      return "#03a9f3";
    }};

  &:hover {
    color: ${props => (!props.primary && !props.danger ? "#0f7ae5" : "#ffffff")};
    background-color: ${props => {
      if (props.primary) return "#0f7ae5";
      if (props.danger) return "#be391c";
      return "transparent";
    }};
    text-decoration: none;
    border: 2px solid ${props => (props.danger ? "#be391c" : "#0f7ae5")}};
  }
`;

export default StyledLink;

components/Header.js(导入StyledLink上面创建的样式化组件并使用它——传递给该组件的任何其他道具将自动传递给function,但是,在这种情况下,您需要解构prop来使用它)

import React from "react";
import StyledLink from "./StyledLink";

export default () => (
  <nav className="container">
    <StyledLink primary link="/">Home</StyledLink>
    <StyledLink danger link="/about">About</StyledLink>
    <StyledLink link="/portfolio">Portfolio</StyledLink>
  </nav>
);
于 2018-11-16T08:19:17.040 回答
1

我有类似的情况,我需要使用由 styled-component 创建的组件,并将 css 属性传递给该组件。希望这可以帮助!

主要组件(在此处定义 CSS 属性)

import Wrapper from 'components/Wrapper'

const CustomWrapper = styled(Wrapper)`
  &:hover {
    background-color: blue;  // defining css property I want to pass down
  }
`;
...

render() {
  return (
    ... <CustomWrapper />  // using my CustomWrapper component made from 'styled-component'
  )
}
`;

Wrapper.js - 功能组件(在此处使用定义的 CSS)

const Wrapper = props => {
  const { className } = props;  // see how className is destructed and used below

  return (
    <div className={className}>  // 'className' is used here
      {YOUR_CONTENT}
    </div>  
  )
}
于 2019-06-27T19:36:46.103 回答
0

链接实际上不起作用(或者我不明白您到底想显示什么),但是从错误消息看来,您应该像这样传递 className styled(<Component className={your source for classnames} />)

于 2018-11-16T06:24:27.910 回答
0

对于共享组件,最好使用 forwardRef,或者你可以只传递 props:

import React from 'react'
import styled from 'styled-components'

function MainComponent() {
  return (
    <LoadingStyled />
  )
})

const LoadingStyled = styled(LoadingComponent)`
  margin-top: 40px;
`

import React, { forwardRef } from 'react'

export const LoadingComponent = forwardRef((props, ref) => {
  return (
    <div {...props}>
      I got all props and styles, yeeeee!
    </div>
  )
})

没有 forwardRef 的替代方案。

import React from 'react'

export const LoadingComponent = (props) => {
  return (
    <div {...props}>
      I got all props and styles, yeeeee!
    </div>
  )
}
于 2019-05-14T12:02:59.817 回答