mirror of
https://github.com/ant-design/ant-design.git
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88 lines
1.6 KiB
Markdown
88 lines
1.6 KiB
Markdown
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---
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order: 1
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title:
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zh-CN: 异步加载
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en-US: Asynchronous loading
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---
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## zh-CN
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匹配内容列表为异步返回时。
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## en-US
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async
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```jsx
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import { Mentions } from 'antd';
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import debounce from 'lodash/debounce';
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const { Option } = Mentions;
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class AsyncMention extends React.Component {
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constructor() {
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super();
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this.loadGithubUsers = debounce(this.loadGithubUsers, 800);
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}
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state = {
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search: '',
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loading: false,
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users: [],
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};
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onSearch = search => {
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this.setState({ search, loading: !!search, users: [] });
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console.log('Search:', search);
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this.loadGithubUsers(search);
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};
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loadGithubUsers(key) {
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if (!key) {
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this.setState({
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users: [],
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});
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return;
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}
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fetch(`https://api.github.com/search/users?q=${key}`)
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.then(res => res.json())
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.then(({ items = [] }) => {
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const { search } = this.state;
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if (search !== key) return;
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this.setState({
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users: items.slice(0, 10),
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loading: false,
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});
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});
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}
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render() {
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const { users, loading } = this.state;
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return (
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<Mentions style={{ width: '100%' }} loading={loading} onSearch={this.onSearch}>
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{users.map(({ login, avatar_url: avatar }) => (
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<Option key={login} value={login} className="antd-demo-dynamic-option">
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<img src={avatar} alt={login} />
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<span>{login}</span>
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</Option>
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))}
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</Mentions>
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);
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}
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}
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ReactDOM.render(<AsyncMention />, mountNode);
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```
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<style>
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.antd-demo-dynamic-option img {
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width: 20px;
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height: 20px;
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margin-right: 8px;
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}
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</style>
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