Skeleton React Component

Framework7 comes with Skeleton Elements library (aka UI Skeletons, Skeleton Screens, Ghost Elements) - UI for improved perceived performance.
Skeleton Elements library already integrated into Framework7 and you don't have to install it separately. For the full API documentation and more examples check out the official Skeleton Elements for React documentation.
Examples

import React, { useState } from 'react';
import {
  Page,
  Navbar,
  BlockTitle,
  List,
  ListItem,
  SkeletonBlock,
  Card,
  Block,
  Row,
  Button,
} from 'framework7-react';

export default () => {
  const [loading, setLoading] = useState(false);
  const [effect, setEffect] = useState(null);

  const load = (newEffect) => {
    if (loading) return;
    setEffect(newEffect);
    setLoading(true);
    setTimeout(() => {
      setLoading(false);
    }, 3000);
  };
  return (
    
      
    <Page>
      <Navbar title="Skeleton Elements" />

      <BlockTitle>Skeleton List</BlockTitle>
      <List mediaList className="skeleton-text">
        <ListItem
          title="Title"
          subtitle="Subtitle"
          text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi lobortis et massa ac interdum."
        >
          <SkeletonBlock
            style={{ width: '40px', height: '40px', borderRadius: '50%' }}
            slot="media"
          />
        </ListItem>
        <ListItem
          title="Title"
          subtitle="Subtitle"
          text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi lobortis et massa ac interdum."
        >
          <SkeletonBlock
            style={{ width: '40px', height: '40px', borderRadius: '50%' }}
            slot="media"
          />
        </ListItem>
      </List>

      <BlockTitle>Skeleton Card</BlockTitle>
      <Card
        className="skeleton-text"
        title="Card Header"
        content="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi lobortis et massa ac interdum. Cras consequat felis at consequat hendrerit."
        footer="Card Footer"
      ></Card>

      <BlockTitle>Loading Effects</BlockTitle>
      <Block strong>
        <p>It supports few loading effects:</p>
        <Row tag="p">
          <Button fill small round className="col" onClick={() => load('fade')}>
            Fade
          </Button>
          <Button fill small round className="col" onClick={() => load('wave')}>
            Wave
          </Button>
          <Button fill small round className="col" onClick={() => load('pulse')}>
            Pulse
          </Button>
        </Row>
      </Block>
      {loading ? (
        <List mediaList v-if="loading">
          {[1, 2, 3].map((n) => (
            <ListItem
              key={n}
              className={`skeleton-text skeleton-effect-${effect}`}
              title="Full Name"
              subtitle="Position"
              text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi lobortis et massa ac interdum. Cras consequat felis at consequat hendrerit. Aliquam vestibulum vitae lorem ac iaculis. Praesent nec pharetra massa, at blandit lectus. Sed tincidunt, lectus eu convallis elementum, nibh nisi aliquet urna, nec imperdiet felis sapien at enim."
            >
              <SkeletonBlock
                style={{ width: '40px', height: '40px', borderRadius: '50%' }}
                slot="media"
              />
            </ListItem>
          ))}
        </List>
      ) : (
        <List mediaList>
          <ListItem
            title="John Doe"
            subtitle="CEO"
            text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi lobortis et massa ac interdum. Cras consequat felis at consequat hendrerit. Aliquam vestibulum vitae lorem ac iaculis. Praesent nec pharetra massa, at blandit lectus. Sed tincidunt, lectus eu convallis elementum, nibh nisi aliquet urna, nec imperdiet felis sapien at enim."
          >
            <img
              src="https://placeimg.com/80/80/people/1"
              style={{ width: '40px', height: '40px', borderRadius: '50%' }}
              slot="media"
            />
          </ListItem>
          <ListItem
            title="Jane Doe"
            subtitle="Marketing"
            text="Cras consequat felis at consequat hendrerit. Aliquam vestibulum vitae lorem ac iaculis. Praesent nec pharetra massa, at blandit lectus. Sed tincidunt, lectus eu convallis elementum, nibh nisi aliquet urna, nec imperdiet felis sapien at enim."
          >
            <img
              src="https://placeimg.com/80/80/people/2"
              style={{ width: '40px', height: '40px', borderRadius: '50%' }}
              slot="media"
            />
          </ListItem>
          <ListItem
            title="Kate Johnson"
            subtitle="Admin"
            text="Sed tincidunt, lectus eu convallis elementum, nibh nisi aliquet urna, nec imperdiet felis sapien at enim."
          >
            <img
              src="https://placeimg.com/80/80/people/3"
              style={{ width: '40px', height: '40px', borderRadius: '50%' }}
              slot="media"
            />
          </ListItem>
        </List>
      )}
    </Page>
      
    
  );
};