import React from 'react'; import { Space, Spin, Switch } from 'antd'; const App: React.FC = () => { const [auto, setAuto] = React.useState(false); const [percent, setPercent] = React.useState(-50); React.useEffect(() => { const timeout = setTimeout(() => { setPercent((v) => { const nextPercent = v + 5; return nextPercent > 150 ? -50 : nextPercent; }); }, 100); return () => { clearTimeout(timeout); }; }, [percent]); const mergedPercent = auto ? 'auto' : percent; return ( { setAuto(!auto); setPercent(-50); }} /> ); }; export default App;