react hooks更新、刷新子组件

最新推荐文章于 2024-08-19 18:38:43 发布

原创最新推荐文章于 2024-08-19 18:38:43 发布 · 7.5k 阅读

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本文介绍了如何使用React和Ant Design实现一个带有刷新功能的组件切换，当用户点击刷新按钮时，动态更新对应的Cmp1到Cmp6组件。通过useState和 useEffect hook管理状态并控制组件显示。

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import React, { Fragment, useEffect, useState, } from 'react';
import {
  Tabs,
  Button,
} from 'antd';
import { connect, history } from 'umi';
import Cmp1 from './components/cmp1';
import Cmp2 from './components/cmp2';
import Cmp3 from './components/cmp3';
import Cmp4 from './components/cmp4';
import Cmp5 from './components/cmp5';
import Cmp6 from './components/cmp6';

const { TabPane } = Tabs;

const DemoPage = () => {
  const [refresh, setRefresh] = useState(false);
  useEffect(() => {
    refresh && setTimeout(() => setRefresh(false));
  }, [refresh]);
  // tab切换
  const handleTabChange = (key) => {
    setCurrentKey(key);
  };
  //刷新，重新加载组件
  const handleReload = () => {
      setRefresh(true);
  };

  return (
    <Fragment>
      <div>
          <Button onClick={handleReload}>刷新</Button>
        <div>
          <Tabs activeKey={currentKey} onChange={handleTabChange}>
            <TabPane tab="1" key="1"></TabPane>
            <TabPane tab="2" key="2"></TabPane>
            <TabPane tab="3" key="3"></TabPane>
            <TabPane tab="4" key="4"></TabPane>
            <TabPane tab="5" key="5"></TabPane>
            <TabPane tab="6" key="6"></TabPane>
          </Tabs>
          {currentKey === '1' && !refresh && (
              <Cmp1/>
          )}
          {currentKey === '2' && !refresh && (
              <Cmp2/>
          )}
          {currentKey === '3' && !refresh && (
             <Cmp3/>
          )}
          {currentKey === '4' && !refresh && (
              <Cmp4/>
          )}
          {currentKey === '5' && !refresh && (
              <Cmp5/>
          )}
          {currentKey === '6' && !refresh && (
              <Cmp6/>
          )}
        </div>
      </div>
    </Fragment>
  );
};
export default connect()(DemoPage);