如何在vue中使用拖动排序组件sortablejs-编程知识

如何在vue中使用拖动排序组件sortablejs

效果图：

在这里插入图片描述
1.首先，我们需要在vue项目中安装依赖：

npm install -save sortablejs

2.创建demo文件=>demoTest.vue，直接附上实例代码：

<template><div><div id="table-names"><div class="tableItem" v-for="item of tableData" :key="item.id"><span>{{ item.id }}</span>=><span>{{ item.name }}</span>=><span>{{ item.sort }}</span></div></div><el-button @click="refreshData">刷新</el-button><el-button @click="initData">取缓存</el-button></div>
</template><script>
import Sortable from 'sortablejs'
let tableDemoSort = 'DEMOSORT'
const list = [{name: 'laowang1', id: '0', sort: 1},{name: 'laowang2', id: '1', sort: 2},{name: 'laowang3', id: '2', sort: 3},{name: 'laowang4', id: '3', sort: 4}
]
export default {data(){return{tableData:[]}},computed: {},created() {this.initData()},mounted(){this.dragTable()},methods:{initData() {let stData = this.getTableDataToLocalStorage()console.log('initData=>stData', JSON.stringify(stData))if (stData) {this.tableData = JSON.parse(JSON.stringify(stData))// this.$forceUpdate()} else {this.tableData = list}this.setTableDataToLocalStorage(this.tableData)},refreshData() {this.tableData = listthis.setTableDataToLocalStorage(this.tableData)},setTableDataToLocalStorage(data) {localStorage.setItem(tableDemoSort, JSON.stringify(data))},getTableDataToLocalStorage() {return JSON.parse(localStorage.getItem(tableDemoSort))},dragTable(){let el = document.getElementById('table-names')Sortable.create(el, {animation: 200,chosenClass: "chosenClass",  // 被选中项的css 类名// dragClass: "dragClass",  // 正在被拖拽中的css类名onEnd: evt => {let {oldIndex, newIndex} = evtthis.switchMapOrder(oldIndex, newIndex)}})},switchMapOrder(oldIndex, newIndex){console.log(`oldIndex: ${oldIndex}, newIndex: ${newIndex}`)const tableData = this.tableDatalet resultData = [] // 结果数组// 先把被移动的那条数据单独取出来let beSpliceItem = tableData.splice(oldIndex, 1)// 把剩下的数据复制给结果数组resultData = tableData// 把被移动的那条数据赋值给结果数组resultData.splice(newIndex, 0, beSpliceItem[0])// 遍历结果数组，让sort重新排序let newTableData = []resultData.forEach((item, index) => {item.sort = index + 1newTableData.push(item)})this.tableData = newTableData// this.$forceUpdate()this.setTableDataToLocalStorage(newTableData)// this.dragTable()}}
}
</script><style>
#table-names {display: flex;flex-direction: column;
}
.tableItem{padding: 6px 10px;cursor: pointer;
}
.sortable-chosen{background-color: blue;
}/* // 拖拽 */
.dragClass {background-color: rgba(0, 188, 235, 0.5) !important;color: #0000a3 !important;
}
/* // 停靠 */
.ghostClass {background-color: rgba(0, 191, 243, 0.1) !important;
}
/* // 选择 */
.chosenClass {background-color: rgba(0, 188, 235, 0.2) !important;
}
</style>