您的沙盒中有几个主要问题：
- 您不应该将
makeStyles 与withStyles 混用。 makeStyles 只能用于创建要在函数组件中调用的自定义挂钩。只需删除 makeStyles 调用即可。
- 您应该从
@material-ui/core/styles 而不是从 @material-ui/styles 导入 withStyles，否则它将无法访问默认主题。
这是您的沙盒的工作（至少是样式）版本：
import React from "react";
import { withStyles } from "@material-ui/core/styles";
import clsx from "clsx";
import Card from "@material-ui/core/Card";
import CardHeader from "@material-ui/core/CardHeader";
import CardContent from "@material-ui/core/CardContent";
import CardActions from "@material-ui/core/CardActions";
import Collapse from "@material-ui/core/Collapse";
import Avatar from "@material-ui/core/Avatar";
import IconButton from "@material-ui/core/IconButton";
import Typography from "@material-ui/core/Typography";
import { red } from "@material-ui/core/colors";
import FavoriteIcon from "@material-ui/icons/Favorite";
import ShareIcon from "@material-ui/icons/Share";
import ExpandMoreIcon from "@material-ui/icons/ExpandMore";
import MoreVertIcon from "@material-ui/icons/MoreVert";
import Popper from "@material-ui/core/Popper";
import Paper from "@material-ui/core/Paper";
import ClickAwayListener from "@material-ui/core/ClickAwayListener";
import { Input, Checkbox } from "@progress/kendo-react-inputs";
const styles = theme => ({
root: {
maxWidth: 345
},
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)"
},
avatar: {
backgroundColor: red[500]
}
});
class RecipeReviewCard extends React.Component {
constructor(props) {
super(props);
this.state = {
expanded: false,
anchorEl: null,
open: false
};
this.handleExpandClick = this.handleExpandClick.bind(this);
this.handleClickAway = this.handleClickAway.bind(this);
this.onClick = this.onClick.bind(this);
}
render() {
const classes = this.props.classes;
console.log(classes);
const isNew = this.props.isNew || false;
const iconClass = clsx(classes.expand, {
[classes.expandOpen]: this.state.expanded
});
return (
<div className="ccard">
<Popper
open={this.state.open}
anchorEl={this.state.anchorEl}
placement="bottom-end"
transition
>
{({ TransitionProps }) => (
<Paper>
<Typography className={classes.typography}>
Delete?
<br />
Other?
</Typography>
</Paper>
)}
</Popper>
<Card className={classes.root}>
<CardHeader
avatar={
<Avatar aria-label="recipe" className={classes.avatar}>
R
</Avatar>
}
action={
<ClickAwayListener onClickAway={this.handleClickAway}>
<IconButton aria-label="settings" onClick={this.onClick}>
<MoreVertIcon />
</IconButton>
</ClickAwayListener>
}
title="Shrimp and Chorizo Paella"
subheader="September 14, 2016"
/>
<CardContent>
<div className="">
<Input
name="ID"
style={{ width: "100%" }}
label="ID*"
pattern={"[A-Za-z]+"}
minLength={2}
required={true}
readOnly={!isNew}
disabled={!isNew}
onChange={this.onChange}
value={this.state.id}
/>
</div>
<div className="mb-3">
<Input
name="Description"
style={{ width: "100%" }}
label="Description"
pattern={"[A-Za-z]+"}
minLength={2}
onChange={e => this.onChange(e, "description")}
value={this.state.description}
/>
</div>
<div className="mb-3">
<Checkbox
id={"chb1"}
label="Active"
name="active"
labelPlacement="before"
onChange={e => this.onChange(e, "active")}
value={this.state.active}
/>
</div>
</CardContent>
<CardActions disableSpacing>
<IconButton aria-label="add to favorites">
<FavoriteIcon />
</IconButton>
<IconButton aria-label="share">
<ShareIcon />
</IconButton>
<IconButton
className={iconClass}
onClick={this.handleExpandClick}
aria-expanded={this.state.expanded}
aria-label="show more"
>
<ExpandMoreIcon />
</IconButton>
</CardActions>
<Collapse in={this.state.expanded} timeout="auto" unmountOnExit>
<CardContent>
<Typography paragraph>Method:</Typography>
<Typography paragraph>
Heat 1/2 cup of the broth in a pot until simmering, add saffron
and set aside for 10 minutes.
</Typography>
<Typography paragraph>
Heat oil in a (14- to 16-inch) paella pan or a large, deep
skillet over medium-high heat. Add chicken, shrimp and chorizo,
and cook, stirring occasionally until lightly browned, 6 to 8
minutes. Transfer shrimp to a large plate and set aside, leaving
chicken and chorizo in the pan. Add pimentón, bay leaves,
garlic, tomatoes, onion, salt and pepper, and cook, stirring
often until thickened and fragrant, about 10 minutes. Add
saffron broth and remaining 4 1/2 cups chicken broth; bring to a
boil.
</Typography>
<Typography paragraph>
Add rice and stir very gently to distribute. Top with artichokes
and peppers, and cook without stirring, until most of the liquid
is absorbed, 15 to 18 minutes. Reduce heat to medium-low, add
reserved shrimp and mussels, tucking them down into the rice,
and cook again without stirring, until mussels have opened and
rice is just tender, 5 to 7 minutes more. (Discard any mussels
that don’t open.)
</Typography>
<Typography>
Set aside off of the heat to let rest for 10 minutes, and then
serve.
</Typography>
</CardContent>
</Collapse>
</Card>
</div>
);
}
handleExpandClick() {
this.setState({ expanded: !this.state.expanded });
}
onClick(event) {
this.setState({
anchorEl: event.currentTarget,
open: !this.state.open
});
}
handleClickAway() {
this.setState({
open: false
});
}
onChange() {}
}
export default withStyles(styles)(RecipeReviewCard);
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