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2 years ago
<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>