| <template> | 
|     <view class="u-avatar-group"> | 
|         <view | 
|             class="u-avatar-group__item" | 
|             v-for="(item, index) in showUrl" | 
|             :key="index" | 
|             :style="{ | 
|                 marginLeft: index === 0 ? 0 : $u.addUnit(-size * gap) | 
|             }" | 
|         > | 
|             <u-avatar | 
|                 :size="size" | 
|                 :shape="shape" | 
|                 :mode="mode" | 
|                 :src="$u.test.object(item) ? keyName && item[keyName] || item.url : item" | 
|             ></u-avatar> | 
|             <view | 
|                 class="u-avatar-group__item__show-more" | 
|                 v-if="showMore && index === showUrl.length - 1 && (urls.length > maxCount || extraValue > 0)" | 
|                 @tap="clickHandler" | 
|             > | 
|                 <u--text | 
|                     color="#ffffff" | 
|                     :size="size * 0.4" | 
|                     :text="`+${extraValue || urls.length - showUrl.length}`" | 
|                     align="center" | 
|                     customStyle="justify-content: center" | 
|                 ></u--text> | 
|             </view> | 
|         </view> | 
|     </view> | 
| </template> | 
|   | 
| <script> | 
|     import props from './props.js'; | 
|     /** | 
|      * AvatarGroup  头像组 | 
|      * @description 本组件一般用于展示头像的地方,如个人中心,或者评论列表页的用户头像展示等场所。 | 
|      * @tutorial https://www.uviewui.com/components/avatar.html | 
|      *  | 
|      * @property {Array}           urls     头像图片组 (默认 [] ) | 
|      * @property {String | Number} maxCount 最多展示的头像数量 ( 默认 5 ) | 
|      * @property {String}          shape    头像形状( 'circle' (默认) | 'square' ) | 
|      * @property {String}          mode     图片裁剪模式(默认 'scaleToFill' ) | 
|      * @property {Boolean}         showMore 超出maxCount时是否显示查看更多的提示 (默认 true ) | 
|      * @property {String | Number} size      头像大小 (默认 40 ) | 
|      * @property {String}          keyName  指定从数组的对象元素中读取哪个属性作为图片地址  | 
|      * @property {String | Number} gap      头像之间的遮挡比例(0.4代表遮挡40%)  (默认 0.5 ) | 
|      * @property {String | Number} extraValue  需额外显示的值 | 
|      * @event    {Function}        showMore 头像组更多点击 | 
|      * @example  <u-avatar-group:urls="urls" size="35" gap="0.4" ></u-avatar-group:urls=> | 
|      */ | 
|     export default { | 
|         name: 'u-avatar-group', | 
|         mixins: [uni.$u.mpMixin, uni.$u.mixin, props], | 
|         data() { | 
|             return { | 
|   | 
|             } | 
|         }, | 
|         computed: { | 
|             showUrl() { | 
|                 return this.urls.slice(0, this.maxCount) | 
|             } | 
|         }, | 
|         methods: { | 
|             clickHandler() { | 
|                 this.$emit('showMore') | 
|             } | 
|         }, | 
|     } | 
| </script> | 
|   | 
| <style lang="scss" scoped> | 
|     @import "../../libs/css/components.scss"; | 
|   | 
|     .u-avatar-group { | 
|         @include flex; | 
|   | 
|         &__item { | 
|             margin-left: -10px; | 
|             position: relative; | 
|   | 
|             &--no-indent { | 
|                 // 如果你想质疑作者不会使用:first-child,说明你太年轻,因为nvue不支持 | 
|                 margin-left: 0; | 
|             } | 
|   | 
|             &__show-more { | 
|                 position: absolute; | 
|                 top: 0; | 
|                 bottom: 0; | 
|                 left: 0; | 
|                 right: 0; | 
|                 background-color: rgba(0, 0, 0, 0.3); | 
|                 @include flex; | 
|                 align-items: center; | 
|                 justify-content: center; | 
|                 border-radius: 100px; | 
|             } | 
|         } | 
|     } | 
| </style> |