高阶组件和 Material-UI 的 makeStyles 的样式问题

Question

我正在尝试根据如何使用 makeStyles 设置组件样式并在 Material UI 中仍然具有生命周期方法来避免无效的钩子调用错误？ .

无法说出我在这里可能做错了什么。 类名似乎生成得很好，但样式不是。 请参阅类代码下方的 .RecipeReviewCard-avatar-10 的定义检查器返回。 在 codeandbox 上找到了完整的可运行示例。 似乎 makeStyles 没有执行，但是如果我执行withStyles(styles())(RecipeReviewCard)我得到相同的钩子错误。

const styles = makeStyles(theme => ({
  root: {
    maxWidth: 345
  },
  ...snipped for brevity...
  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;
    ... snipped for brevity...
}

export default withStyles(styles)(RecipeReviewCard);

.RecipeReviewCard-avatar-10 {
    0: m;
    1: a;
    2: k;
    3: e;
    4: S;
    5: t;
    6: y;
    7: l;
    8: e;
    9: s;
    10: -;
    11: a;
    12: v;
    13: a;
    14: t;
    15: a;
    16: r;
    17: -;
    18: 5;

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Answer 1

您的沙箱中有几个主要问题：

• 您不应该将makeStyles与withStyles混合使用。 makeStyles应仅用于创建要在函数组件中调用的自定义钩子。 只需删除makeStyles调用。
• 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。

这是沙箱的工作（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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