【React】styled-components 基本使用

安装

npm install styled-components

组件使用

style.ts

import styled from 'styled-components'

export const HeaderWrapper = styled.div`
  height: 75px;
  background-color: #242424;
  font-size: 14px;
  color: #fff;

  .content {
    display: flex;
    justify-content: space-between;
  }

  .divider {
    height: 5px;
    background-color: #c20c0c;
  }
`

export const HeaderLeft = styled.div`
  display: flex;

  .logo {
    display: block;
    width: 176px;
    height: 70px;
    background-position: 0 0;
    text-indent: -9999px;
  }

  .title-list {
    display: flex;
    line-height: 70px;

    .item {
      position: relative;

      a {
        display: block;
        padding: 0 20px;
        color: #ccc;
      }

      :last-of-type a {
        position: relative;

        ::after {
          position: absolute;
          content: '';
          width: 28px;
          height: 19px;
          background-image: url(${require('@/assets/img/sprite_01.png')});
          background-position: -190px 0;
          top: 20px;
          right: -15px;
        }
      }

      &:hover a,
      .active {
        color: #fff;
        background: #000;
        text-decoration: none;
      }

      .active .icon {
        position: absolute;
        display: inline-block;
        width: 12px;
        height: 7px;
        bottom: -1px;
        left: 50%;
        transform: translate(-50%, 0);
        background-position: -226px 0;
      }
    }
  }
`
export const HeaderRight = styled.div`
  display: flex;
  align-items: center;
  color: #787878;
  font-size: 12px;

  .search {
    width: 158px;
    height: 32px;
    border-radius: 16px;

    input {
      &::placeholder {
        font-size: 12px;
      }
    }
  }

  .center {
    width: 90px;
    height: 32px;
    line-height: 32px;
    text-align: center;
    border: 1px solid #666;
    border-radius: 16px;
    margin: 0 16px;
    cursor: pointer;
    color: #fff;

    :hover {
      color: #fff;
      border-color: #fff;
    }
  }
`

index.tsx

import {
  HeaderLeft,
  HeaderRight,
  HeaderWrapper
} from "@/components/app-header/style";
import headerTitles from "@/assets/data/header_titles.json";
// ...

interface IProps {
  children?: React.ReactNode;
}

const AppHeader: FC<IProps> = () => {
  // ...

  return (
    <HeaderWrapper>
      <div className={"content wrap-v1"}>
        <HeaderLeft>
          <a className="logo sprite_01" href="/">
            网易云音乐
          </a>
          <div className="title-list">
            {headerTitles.map((item) => {
              return (
                <div className="item active" key={item.title}>
                  {showItem(item)}
                </div>
              );
            })}
          </div>
        </HeaderLeft>
        <HeaderRight>
          <span className="input">
            <Input
              className="search"
              placeholder="音乐/视频/电台/用户"
              prefix={<SearchOutlined />}
            />
          </span>
          <span className="center">创作者中心</span>
          <span className="login">登录</span>
        </HeaderRight>
      </div>
      <div className="divider"></div>
    </HeaderWrapper>
  );
};

export default memo(AppHeader);

主题使用

theme.ts

const theme = {
  color: {
    primary: '#c20c0c',
    secondary: ''
  },
  size: {},
  mixin: {
    wrapv1: `
      width: 1100px;
      margin: 0 auto;
    `,
    textNowrap: `
      white-space: nowrap;
      text-overflow: ellipsis;
      overflow: hidden;`
  }
}

export default theme

index.tsx

import React from "react";
import ReactDOM from "react-dom/client";
import App from "@/App";
import "normalize.css";
// 导入全局样式
import "./assets/css/index.scss";
import { HashRouter } from "react-router-dom";
import store from "@/store";
import { Provider } from "react-redux";
import { ThemeProvider } from "styled-components";
import theme from "@/assets/theme";

const root = ReactDOM.createRoot(
  document.getElementById("root") as HTMLElement
);
root.render(
  <React.StrictMode>
    <Provider store={store}>
      <ThemeProvider theme={theme}>
        <HashRouter>
          <App />
        </HashRouter>
      </ThemeProvider>
    </Provider>
  </React.StrictMode>
);

在 styled-components 组件中直接使用 ：

background-color: ${(props) => props.theme.color.primary};