ion-delete-button
隶属于ionItem

用法

<ion-list show-delete="shouldShowDelete">
  <ion-item>
    <ion-delete-button class="ion-minus-circled"></ion-delete-button>
    Hello, 列表项!
  </ion-item>
</ion-list>
<ion-toggle ng-model="shouldShowDelete">
  显示删除?
</ion-toggle>