react拖拽组件react sortable hoc的使用

import * as React from 'react'
import {
    sortableContainer,
    sortableElement,
    sortableHandle,
} from "react-sortable-hoc"; // 拖拽的关键组件

const Sortable: React.FC = (props) => {
    const { dataSource = [], ComSortItem, sortEnd } = props;
    // 拖拽时原列表替换
    function arrayMoveMutable(array, fromIndex, toIndex) {
        const startIndex = fromIndex < 0 ? array.length + fromIndex : fromIndex;
        if (startIndex >= 0 && startIndex < array.length) {
            const endIndex = toIndex < 0 ? array.length + toIndex : toIndex;
            const [item] = array.splice(fromIndex, 1);
            array.splice(endIndex, 0, item);
        }
    }

    // 拖拽时返回新数组
    function arrayMoveImmutable(array, fromIndex, toIndex) {
        array = [...array];
        arrayMoveMutable(array, fromIndex, toIndex);
        return array;
    }

    // 拖拽容器
    const SortableContainer = sortableContainer(({ children }) => {
        return 
{children}
;
    });

    // 拖拽ico
    const DragHandle = sortableHandle((value1, sortIndex1) => (
        

            

                
            
        
    ));
    function handleDelete(index) {
        const List = [...dataSource];
        List.splice(index, 1)
        sortEnd(List);
    }
    // 数据更新
    function updateData(val, index) {
        const List = [...dataSource];

        List[index] = val;
        sortEnd(List);
    }
    // 拖拽体
    const SortableItem = sortableElement(({ value, sortIndex }) => {
        return (
            // 

            //     
            // 
            
        );
    });

    // 拖拽后回调
    const onSortEnd = ({ oldIndex, newIndex }) => {
        const List = arrayMoveImmutable(dataSource, oldIndex, newIndex);
        sortEnd(List);
    };
    return (
        <>
            
                {dataSource.length > 0 &&
                    dataSource.map((value, index) => (
                        
                    ))}
            
        
    );
}

export default Sortable;

import * as React from 'react'
import { Checkbox } from 'antd'

import Sortable from './dragcomponents'
import './index.scss'
const _ = require('lodash')
import store from './store'
import { SAVE_RENDER_ALL_DATA } from './actionType'
const Usedrag: React.FC = (props) => {
    const { state, dispatch } = React.useContext(store);
    // 自定义拖拽体
    const {upDateRenderData} = props
    const showdata ={...props.renderData}
    function AddForm(showdata) {
        return (
            < div className='ItemBox'>

                
{showdata.data.valuedata.fieldName}
                

                    控件标签显示名称{showdata.data.valuedata.labelName}
                    所占列宽{showdata.data.valuedata.span}
                
            

        )
    }

    const updateSource = (val) => {
        const arrdata: any = _.cloneDeep(props.renderData)
        const arr: any = _.cloneDeep(val)
        if(JSON.stringify(arrdata) !== JSON.stringify(arr)){
            for (let i = 0; i <= arr.length - 1; i++) {
                arr[i].edit = 1;
            }
        }
        // upDateRenderData(arr)
        dispatch({
            type: SAVE_RENDER_ALL_DATA,
            value: arr
        })
    }

    return (
        

            

                 }
                    sortEnd={(val) => {
                        updateSource(val)
                    }}
            
        
    );
};


export default Usedrag

import Usedrag from './usedrag';