<transition-group class="container" name="sort">
        <div class="app-item" v-for="app in customApps" :key="app.id" :draggable="true"
            @dragstart="dragstart(app)"
            @dragenter="dragenter(app,$event)"
            @dragend="getDragend(customApps, 'customer', $event)">
            <div>
                <img class="icon_a" v-if="app.logo" :src="app.logo" >
                <div class="ellipsis" >{{app.name}}</div>
            </div>
        </div>
    </transition-group>

    import { APi } from '@/api/enterpriseAPi'
    <script>
        export default {
            data() {
                return {
                    oldData: [],
                    newData: [],
                    customApps: [],
                    dragStartId: '',
                    dragEndId: ''
                }
            }
        }
    </script>

    dragstart(value) {
        this.oldData = value
        this.dragStartId = value.id
    },
    dragenter(value) {
        this.newData = value
        this.dragEndId = value.id
    },
    getDragend(listData, type) {
            if (this.oldData !== this.newData) {
                let oldIndex = listData.indexOf(this.oldData)
                let newIndex = listData.indexOf(this.newData)
                let newItems = [...listData]
                // 刪除之前DOM節(jié)點(diǎn)
                newItems.splice(oldIndex, 1)
                // 在拖拽結(jié)束目標(biāo)位置增加新的DOM節(jié)點(diǎn)
                newItems.splice(newIndex, 0, this.oldData)
                // 每次拖拽結(jié)束后，將拖拽處理完成的數(shù)據(jù)，賦值原數(shù)組，使DOM視圖更新，頁(yè)面顯示拖拽動(dòng)畫(huà)
                this.customApps = newItems
                // 每次拖拽結(jié)束后調(diào)用接口時(shí)時(shí)保存數(shù)據(jù)
               Api(this.dragStartId, this.dragEndId).then((res) => {})
            }
        },

    <style lang="scss" scoped>
        .sort-move {
            transition: transform 1s;
        }
    </style>