如何在材质 ui popper 中键入过渡道具答案

【问题标题】：how to type transition props in material ui popper如何在材质 ui popper 中键入过渡道具
【发布时间】：2020-08-07 17:02:44
【问题描述】：

我用的是材质uipopper，想把转场分离成一个单独的函数如下

import React from 'react';
import { makeStyles, Theme, createStyles } from '@material-ui/core/styles';
import Popper from '@material-ui/core/Popper';
import Fade from '@material-ui/core/Fade';

const useStyles = makeStyles((theme: Theme) =>
  createStyles({
    paper: {
      border: '1px solid',
      padding: theme.spacing(1),
      backgroundColor: theme.palette.background.paper,
    },
  }),
);

export default function TransitionsPopper() {
  const classes = useStyles();
  const [anchorEl, setAnchorEl] = React.useState<null | HTMLElement>(null);

  const handleClick = (event: React.MouseEvent<HTMLElement>) => {
    setAnchorEl(anchorEl ? null : event.currentTarget);
  };

  const open = Boolean(anchorEl);
  const id = open ? 'transitions-popper' : undefined;

  const popperTrans = ({ TransitionProps }) => (
    <Fade {...TransitionProps} timeout={350}>
      <div className={classes.paper}>The content of the Popper.</div>
    </Fade>
  )
  return (
    <div>
      <button aria-describedby={id} type="button" onClick={handleClick}>
        Toggle Popper
      </button>
      <Popper id={id} open={open} anchorEl={anchorEl} transition>
        {popperTrans}
      </Popper>
    </div>
  );
}

我正在使用 typescript，它会抛出 tslint 错误 Binding element 'TransitionProps' implicitly has an 'any' type。如何在此处输入TransitionProps？

【问题讨论】：

标签： reactjs typescript material-ui typescript-typings

【解决方案1】：

或者，TransitionProps 被导出，所以你可以这样做：

import { TransitionProps as TransitionPropsType } from "@material-ui/core";

然后：

  const popperTrans = ({ TransitionProps }: { TransitionProps: TransitionPropsType }) => (
    <Fade {...TransitionProps} timeout={350}>
      <div className={classes.paper}>The content of the Popper.</div>
    </Fade>
  )

【讨论】：

【解决方案2】：

我找到了答案。我们可以从Fade 导入FadeProps 并使用它来输入TransitionProps。

import React from 'react';
import { makeStyles, Theme, createStyles } from '@material-ui/core/styles';
import Popper from '@material-ui/core/Popper';
import Fade, { FadeProps } from '@material-ui/core/Fade';

const useStyles = makeStyles((theme: Theme) =>
  createStyles({
    paper: {
      border: '1px solid',
      padding: theme.spacing(1),
      backgroundColor: theme.palette.background.paper,
    },
  }),
);

export default function TransitionsPopper() {
  const classes = useStyles();
  const [anchorEl, setAnchorEl] = React.useState<null | HTMLElement>(null);

  const handleClick = (event: React.MouseEvent<HTMLElement>) => {
    setAnchorEl(anchorEl ? null : event.currentTarget);
  };

  const open = Boolean(anchorEl);
  const id = open ? 'transitions-popper' : undefined;

  const popperTrans = ({ TransitionProps }: { TransitionProps: FadeProps }) => (
    <Fade {...TransitionProps} timeout={350}>
      <div className={classes.paper}>The content of the Popper.</div>
    </Fade>
  )
  return (
    <div>
      <button aria-describedby={id} type="button" onClick={handleClick}>
        Toggle Popper
      </button>
      <Popper id={id} open={open} anchorEl={anchorEl} transition>
        {popperTrans}
      </Popper>
    </div>
  );
}

【讨论】：