cjd-parkball/src/components/card/demo/loading.md

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---
category: 2
title: 预加载的卡片
title_en: Loading card
---

 zh-CN

数据读入前会有文本块样式。

 en-US

Shows a loading indicator while the contents of the card is being fetched.

````jsx
import { Skeleton, Switch, Card, Icon, Avatar } from 'parkball';

const { Meta } = Card;

class App extends React.Component {
  state = {
    loading: true,
  }

  onChange = (checked) => {
    this.setState({ loading: !checked });
  }

  render() {
    const { loading } = this.state;

    return (
      <div>
        <Switch checked={!loading} onChange={this.onChange} />

        <Card style={{ width: 300, marginTop: 16 }} loading={loading}>
          <Meta
            avatar={<Avatar src="https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png" />}
            title="Card title"
            description="This is the description"
          />
        </Card>

        <Card
          style={{ width: 300, marginTop: 16 }}
          actions={[<Icon type="setting" />, <Icon type="edit" />, <Icon type="ellipsis" />]}
        >
          <Skeleton loading={loading} avatar active>
            <Meta
              avatar={<Avatar src="https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png" />}
              title="Card title"
              description="This is the description"
            />
          </Skeleton>
        </Card>
      </div>
    );
  }
}

ReactDOM.render(<App />, mountNode);
````