reactjs如何实现列表可拖动排序

reactjs如何实现列表可拖动排序，下面web建站小编给大家介绍一下实现代码！

实现代码如下：

import React, { useState,useEffect } from "react";
import { Input,Radio, Button,Space,Checkbox,Form  } from "antd";
import { DeleteOutline, CloseCircleOutline,UnorderedListOutline } from 'antd-mobile-icons'
import { Dialog, Toast, Divider } from 'antd-mobile'
import {
  sortableContainer,
  sortableElement,
  sortableHandle,
} from 'react-sortable-hoc';
import {arrayMoveImmutable} from 'array-move';

const RadioComponent = (props) => {
  const {onDelete,onListDate,componentIndex,setIsEdit,isEdit,componentTitle,componentDate,previewVisible} = props;
  const [radioList,setRadioList] = useState([])
  const [remark, setRemark] = useState(false)
  const [required, setRequired] = useState(false)
  const [radioTitle, setRadioTitle] = useState('')
  const [id, setId] = useState(2)
  const [radioId, setRadioId] = useState(111211)
  useEffect(()=>{
    if(componentDate !== undefined){
      setRadioList(componentDate)
    }else{
      setRadioList([{id:0,value:''},{id:1,value:''}])
    }
  },[componentIndex])

  useEffect(()=>{
    if(isEdit === false && previewVisible === undefined){
      onListDate(radioList,radioTitle,required,remark) 
    }
  },[isEdit])
 
  const onChange = (e) => {
    console.log(e.target.value);
    setRequired(e.target.checked)
  };

  // 添加备注
  const addRemark = ()=>{
    setRemark(true)
  }

  // 删除备注
  const deleteRemark = ()=>{
    setRemark(false)
  }

  // 删除选项
  const deleteRadio = (item)=>{
    console.log(item);
    if(radioList.indexOf(item) > -1){
      radioList.splice(radioList.indexOf(item),1)
    }
    setRadioList([...radioList])
  }

  const SortableItem = sortableElement(({item,num}) => (
    <li>
      <Radio key = {item.id} value = {item.value} style = {{width:'100%',position:'relative'}} >
      <Input style = {{border:'none',width:'96%'}} placeholder = {`选项${num+1}`} defaultValue={item.value}
        onBlur = {(e)=>{
        item.value = e.target.value
        console.log(item.value);
        setRadioList([...radioList])}}
        readOnly = {isEdit == true ? '':'none'}></Input>
        <DragHandle  />
      <CloseCircleOutline  onClick = {()=>{deleteRadio(item)}} style = {{position:'absolute',right:'10px',top:'10px',display:isEdit == true ? '':'none'}}/>
    </Radio>
    </li>
  ));

  const onSortEnd = ({oldIndex, newIndex}) => {
    var arry1 = arrayMoveImmutable(radioList,oldIndex,newIndex)
    setRadioList(arry1);
  }; 

  const DragHandle = sortableHandle(() => <UnorderedListOutline  style = {{position:'absolute',right:'30px',top:'10px',display:isEdit == true ? '':'none'}}/>);
  const SortableContainer = sortableContainer(({children}) => {
  return <ul>{children}</ul>;

});

    return(
      <div id = {componentIndex} style = {{backgroundColor:'#fff', paddingTop:'10px',paddingLeft:'20px'}} >
        <span style = {{display: required == true ? '':'none',color:'red',fontSize:'20px'}}>*</span>
          <span style={{fontWeight:'bold',fontSize:'14px'}}>{componentIndex} [单选]</span>
        <Input placeholder = "请输入问题" defaultValue = {radioTitle === ''? componentTitle:componentTitle} autoFocus style = {{width:'80%',border:'none',paddingLfet:'5px'}} onBlur={e=>{setRadioTitle(e.target.value);}} readOnly = {isEdit == true ? '':'none'} >
        </Input>
        <Radio.Group style = {{display:'block'}}>
          <SortableContainer onSortEnd={onSortEnd} useDragHandle  >
           {
              radioList.map((item,index)=>{
                return(
                  <SortableItem key={`item-${item.id}`} index={index} item = {item} num={index} />
                )
              })
            }
          </SortableContainer>
        </Radio.Group>
        <div style = {{display:remark == true ? '':'none',fontSize:'14px'}}>
          <span>备注</span><Input style={{border:'none',width:'80%'}} placeholder='请输入' readOnly = {isEdit == true ? '':'none'}></Input>
          <DeleteOutline onClick={deleteRemark} style={{float:'right',margin:'10px',display:isEdit == true ? '':'none'}}/>
        </div>
        <div style={{display:isEdit == true ? '':'none'}}>
        <Button type="link" onClick={()=>{setRadioList([...radioList,{id:id,value:''}]);setId(id+1);console.log(radioList);}}>添加选项</Button>
          <span style={{display:remark == false ? '':'none'}}>|</span>
        <Button type="link" style={{display:remark == false ? '':'none'}} onClick={addRemark}>添加[备注]项</Button>
        <div style={{borderTop:'1px #d7d7d7 solid ',paddingTop:'10px',marginTop:'15px',marginLeft:'-15px'}}>
        <Checkbox onChange={onChange}>必填</Checkbox>
        <DeleteOutline  
          onClick={async () => {
          const result = await Dialog.confirm({
            content: '是否确定删除该题目？',
          })
          if (result) {
            Toast.show({ content: '点击了确认', position: 'bottom' })
            onDelete(componentIndex)
          } else {
            Toast.show({ content: '点击了取消', position: 'bottom' })
          }
          }} style={{float:'right',margin:'10px'}}  />
        </div>
        </div>
      </div>
    )
}

export default RadioComponent

根据需求安装脚手架！

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标签： react, 拖动排序

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