angular10 长按拖动排序 Longpress sort

Question

angular10 长按拖动排序 Longpress sort

  <ul class="list-group"   cdkDropList (cdkDropListDropped)="drop($event)" [cdkDropListData]="draggableItems">
    <li cdkDrag  [cdkDragDisabled]="isSort"
    *ngFor="let item of draggableItems"  (cdkDragStarted)="dragStarted($event)" (touchstart)="test(item)"
  >
       {{isSort}},Element {{ item.text }}
       
    </li>