React BigCalendar拖放示例不起作用

Question

我只是通过BigCalendar拖放例如去这里。我试图自己创建一个本地拖放示例，以了解拖放如何与BigCalendar一起使用。我创建了以下内容：

Dnd.js

import React from 'react'
import events from './events'
import HTML5Backend from 'react-dnd-html5-backend'
import { DragDropContext } from 'react-dnd'
import BigCalendar from 'react-big-calendar'
import withDragAndDrop from 'react-big-calendar/lib/addons/dragAndDrop';
import 'react-big-calendar/lib/css/react-big-calendar.css';

import 'react-big-calendar/lib/addons/dragAndDrop/styles.less';

const DragAndDropCalendar = withDragAndDrop(BigCalendar)

class Dnd extends React.Component {
  constructor(props) {
    super(props)
    this.state = {
      events: events,
    }

    this.moveEvent = this.moveEvent.bind(this)
  }

  moveEvent({ event, start, end }) {
    const { events } = this.state

    const idx = events.indexOf(event)
    const updatedEvent = { ...event, start, end }

    const nextEvents = [...events]
    nextEvents.splice(idx, 1, updatedEvent)

    this.setState({
      events: nextEvents,
    })

    alert(`${event.title} was dropped onto ${event.start}`)
  }

  resizeEvent = (resizeType, { event, start, end }) => {
    const { events } = this.state

    const nextEvents = events.map(existingEvent => {
      return existingEvent.id == event.id
        ? { ...existingEvent, start, end }
        : existingEvent
    })

    this.setState({
      events: nextEvents,
    })

    alert(`${event.title} was resized to ${start}-${end}`)
  }

  render() {
    return (
      <DragAndDropCalendar
        selectable
        events={this.state.events}
        onEventDrop={this.moveEvent}
        resizable
        onEventResize={this.resizeEvent}
        defaultView="week"
        defaultDate={new Date(2015, 3, 12)}
      />
    )
  }
}

export default DragDropContext(HTML5Backend)(Dnd)

index.js

import React from 'react';
import ReactDOM from 'react-dom';
import Knight from './knight/knight';
import Square from './square/square';
import Board from './board/board';
import Dnd from './bigcalender/dnd';
import { moveKnight , observe } from './game';
import BigCalendar from 'react-big-calendar'
import SimpleDrag from './simpleDrag/simpleDrag';
import moment from 'moment';

BigCalendar.momentLocalizer(moment);

const rootEl = document.getElementById('root');

ReactDOM.render(
    <Dnd />,
    rootEl
)

日历可以很好地显示所有事件，问题在于拖放功能无法正常工作。该代码几乎是BigCalendar拖放源代码的复制粘贴。那么，为什么拖放示例在我的项目中不起作用？

我已在本地创建的例子也可以看到我的我的回购这里。

Answer 1

这似乎少即是不支持create-react-app默认情况下，这样的.less进口为dragAndDrop你Dnd.js不工作。

您可以在项目中设置LESS，也可以直接导入.css文件，因为它已经存在。

要使用该.css文件，请在您的dnd.js文件中更改此导入...

import 'react-big-calendar/lib/addons/dragAndDrop/styles.less';

为此...

import 'react-big-calendar/lib/addons/dragAndDrop/styles.css';