h5-Dooring/src/components/BackTop/index.tsx

import { memo } from 'react';
import { BackToTop, Icon } from 'zarm';
import React from 'react';
const themeObj = {
  simple: { bgColor: '#fff', color: '#999' },
  black: { bgColor: '#000', color: '#fff' },
  danger: { bgColor: '#ff5050', color: '#fff' },
  primary: { bgColor: '#00bc71', color: '#fff' },
  blue: { bgColor: '#06c', color: '#fff' },
};
const BackTop = memo((props: { theme: keyof typeof themeObj }) => {
  const { theme = 'simple' } = props;

  return (
    <BackToTop>
      <div
        style={{
          width: 48,
          height: 48,
          lineHeight: '48px',
          textAlign: 'center',
          backgroundColor: themeObj[theme].bgColor,
          color: themeObj[theme].color,
          fontSize: 20,
          borderRadius: 30,
          boxShadow: '0 2px 10px 0 rgba(0, 0, 0, 0.2)',
          cursor: 'pointer',
        }}
      >
        <Icon type="arrow-top" />
      </div>
    </BackToTop>
  );
});

export default BackTop;