reactjs – 如何使用Typescript扩展Material-UI组件的道具？

2019年7月28日 286次阅读

我想使用typescript从Material-UI扩展Button组件的道具,以便能够将额外的道具传递给它的子项.

import { NavLink } from 'react-router-dom';
import { Button } from 'material-ui';

<Button
  component={NavLink}

  // NavLink props that needs to be added to typescript declarations
  activeClassName={classes.activeButton}
  exact={true}
  to={to}
>
  {title}
</Button>

我试图在./app/types/material_ui.d.ts中添加以下声明：

declare module 'material-ui' {
  interface Button {
    activeClassName?: any;
    exact?: boolean;
    to?: string;
  }
}

抛出错误“TS2693：’Button’只引用一个类型,但在这里被用作值.”

我也试过这个宣言：

import * as React from 'react';

import { PropTypes, StyledComponent } from 'material-ui';
import { ButtonBaseProps } from 'material-ui/ButtonBase';

declare module 'material-ui' {
  export interface ButtonProps extends ButtonBaseProps {
    color?: PropTypes.Color | 'contrast';
    component?: React.ReactNode;
    dense?: boolean;
    disabled?: boolean;
    disableFocusRipple?: boolean;
    disableRipple?: boolean;
    fab?: boolean;
    href?: string;
    raised?: boolean;
    type?: string;

    activeClassName?: any;
    exact?: boolean;
    to?: string;
  }

  export class Button extends StyledComponent<ButtonProps> { }
}

其中引发错误“TS2323：无法重新声明导出的变量’按钮’”.

我的tsconfig.json看起来像这样：

{
  "compilerOptions": {
    ...
    "paths": {      
      "history": ["./node_modules/@types/history/index"],
      "redux": ["./node_modules/@types/redux/index"],
      "react": ["./node_modules/@types/react/index"],
      "*": ["./app/types/*", "*"]
    },
  },
  ...
}

最后来自Material-UI的原始类型定义：

import * as React from 'react';
import { StyledComponent, PropTypes } from '..';
import { ButtonBaseProps } from '../ButtonBase';

export interface ButtonProps extends ButtonBaseProps {
  color?: PropTypes.Color | 'contrast';
  component?: React.ReactNode;
  dense?: boolean;
  disabled?: boolean;
  disableFocusRipple?: boolean;
  disableRipple?: boolean;
  fab?: boolean;
  href?: string;
  raised?: boolean;
  type?: string;
}

export default class Button extends StyledComponent<ButtonProps> {}

我正在使用material-ui 1.0.0-beta.8 with react 15.6.1,react-router-dom 4.2.2和typescript 2.5.2.

最佳答案 以下代码适用于我

import { Button, StyledComponent } from 'material-ui';
import { ButtonProps } from 'material-ui/Button';

declare module 'material-ui' {
  export interface MyProps {

    exact?: boolean;
    to?: string;
  }
  export class Button extends StyledComponent<ButtonProps & MyProps> {
  }

}

“我没有问题”TS2693：’Button’只引用一个类型,但在这里被用作一个值.我也在使用Typescript 2.5.2

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