使用react-sortable-hoc实现拖拽

如图:

在这里插入图片描述

提示:下面案例可供参考

1.文件1

代码如下(示例):文件名称:./dragcomponents

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

const Sortable: React.FC<any> = (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 <div>{children}</div>;
    });

    // 拖拽ico
    const DragHandle = sortableHandle((value1, sortIndex1) => (
        <div id='ListItem' className='ListItem' >
            <div className="ChildCom">
                <ComSortItem data={value1} index={sortIndex1} updateData={updateData} />
            </div>
        </div>
    ));
    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 (
            // <div id='ListItem' className='ListItem' >
            //     <DragHandle value1={value} sortIndex1={sortIndex} />
            // </div>
            <DragHandle valuedata={value} sortIndexdata={sortIndex} />
        );
    });

    // 拖拽后回调
    const onSortEnd = ({ oldIndex, newIndex }) => {
        const List = arrayMoveImmutable(dataSource, oldIndex, newIndex);
        sortEnd(List);
    };
    return (
        <>
            <SortableContainer onSortEnd={onSortEnd} useDragHandle helperClass="row-dragging-item">
                {dataSource.length > 0 &&
                    dataSource.map((value, index) => (
                        <SortableItem
                            key={`sortable-item-${index}`}
                            index={index}
                            value={value}
                            sortIndex={index}
                        />
                    ))}
            </SortableContainer>
        </>
    );
}

export default Sortable;

2.文件2

代码如下(示例):文件名称’./usedrag’

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<any> = (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'>
                
                <div className='name'><span className="icon iconfont iconyidongshu"></span>{showdata.data.valuedata.fieldName}</div>
                <div className='Opt'>
                    <span>控件标签显示名称<span>{showdata.data.valuedata.labelName}</span></span>
                    <span>所占列宽<span>{showdata.data.valuedata.span}</span></span>
                    {/* <Checkbox onChange={changeChecked} checked={checked} ></Checkbox> */}
                </div>
            </div>
        )
    }

    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 (
        <div className='RightBox' >
            <div className='item-con' style={{ overflow: 'auto' }}>
                <Sortable
                    className='sortable'
                    dataSource={...props.renderData}
                    ComSortItem={(p) => <AddForm {...p} />}
                    sortEnd={(val) => {
                        updateSource(val)
                    }}
                />
            </div>
        </div>
    );
};


export default Usedrag

3.使用

代码如下(示例):

import Usedrag from './usedrag';
<Usedrag renderData={renderData}/>

到此这篇关于react拖拽组件react-sortable-hoc的使用的文章就介绍到这了,更多相关react拖拽组件react-sortable-hoc内容请搜索阿兔在线工具以前的文章或继续浏览下面的相关文章希望大家以后多多支持阿兔在线工具!

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