当前第一次使用Material-UI-React构建扩展卡,我遇到的问题是单击一个扩展卡时它们都扩展了。如何将代码重构为仅允许点击的卡片展开而不会影响其他卡片?
const useStyles = makeStyles(theme => ({
card: {
maxWidth: 300
},
media: {
height: 0,
paddingTop: '56.25%' // 16:9
},
expand: {
transform: 'rotate(0deg)',
marginLeft: 'auto',
transition: theme.transitions.create('transform', {
duration: theme.transitions.duration.shortest
})
},
expandOpen: {
transform: 'rotate(180deg)'
}
}));
const HomePageCards = props => {
console.log(props);
const classes = useStyles();
const [expanded, setExpanded] = React.useState(false);
function handleExpandClick() {
setExpanded(!expanded);
}
return (
<Card className={classes.card}>
<CardHeader title={props.title} subheader={`User: ${props.username}`} />
<CardMedia
className={classes.media}
image='https://source.unsplash.com/1600x900/?crafts'
title={props.title}
/>
<CardContent>
<Typography variant='body2' color='textSecondary' component='p'>
{props.description}
</Typography>
</CardContent>
<CardActions disableSpacing>
<IconButton
className={clsx(classes.expand, {
[classes.expandOpen]: expanded
})}
onClick={handleExpandClick}
aria-expanded={expanded}
aria-label='show more'
>
<ExpandMoreIcon />
</IconButton>
</CardActions>
<Collapse in={expanded} timeout='auto' unmountOnExit>
<CardContent>
<Typography paragraph>Method:</Typography>
<Typography paragraph>
<strong>Step 1:</strong>
{props.step_1}
</Typography>
<Typography paragraph>
<strong>Step 2:</strong>
{props.step_2}
</Typography>
<Typography paragraph>
<strong>Step 3:</strong>
{props.step_3}
</Typography>
<Typography>
<strong>Step 4:</strong>
{props.step_4}
</Typography>
<Typography>
<strong>Step 5:</strong>
{props.step_5}
</Typography>
</CardContent>
</Collapse>
</Card>
);
};
import React, { useEffect, useState } from 'react';
import Axios from 'axios';
import HomePageCards from '../HomePageCards/HomePageCards';
const HomePage = props => {
const [users, setUsers] = useState([]);
useEffect(() => {
const token = localStorage.getItem('token');
Axios.get('https://bw-how-to.herokuapp.com/guides', {
headers: { authorization: token }
})
.then(res => {
// console.log('Data', res.data);
setUsers(res.data);
})
.catch(err => console.error(err));
}, []);
return (
<div className='character-list grid-view'>
{users.map(user => (
<HomePageCards {...user} key={user.id} />
))}
</div>
);
};
export default HomePage;
我环顾四周,但似乎找不到解决方法。任何建议或指导将不胜感激。预先谢谢你。