uv-index-item.vue
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<template>
<!-- #ifdef APP-NVUE -->
<cell ref="uv-index-item">
<!-- #endif -->
<view
class="uv-index-item"
:id="`uv-index-item-${id}`"
:class="[`uv-index-item-${id}`]"
>
<slot />
</view>
<!-- #ifdef APP-NVUE -->
</cell>
<!-- #endif -->
</template>
<script>
import mpMixin from '@/uni_modules/uv-ui-tools/libs/mixin/mpMixin.js'
import mixin from '@/uni_modules/uv-ui-tools/libs/mixin/mixin.js'
// #ifdef APP-NVUE
// 由于weex为阿里的KPI业绩考核的产物，所以不支持百分比单位，这里需要通过dom查询组件的宽度
const dom = uni.requireNativePlugin('dom')
// #endif
/**
* IndexItem
* @description
* @tutorial https://www.uvui.cn/components/indexList.html
* @property {String}
* @event {Function}
* @example
*/
export default {
name: 'uv-index-item',
mixins: [mpMixin, mixin],
data() {
return {
// 本组件到滚动条顶部的距离
top: 0,
height: 0,
id: ''
}
},
created() {
// 子组件uv-index-anchor的实例
this.anchor = {}
},
mounted() {
this.init()
},
methods: {
init() {
// 此处会活动父组件实例，并赋值给实例的parent属性
this.getParentData('uv-index-list')
if (!this.parent) {
return this.$uv.error('uv-index-item必须要搭配uv-index-list组件使用')
}
this.$uv.sleep().then(() =>{
this.getIndexItemRect().then(size => {
// 由于对象的引用特性，此处会同时生效到父组件的children数组的本实例的top属性中，供父组件判断读取
this.top = Math.ceil(size.top)
this.height = Math.ceil(size.height)
})
})
},
getIndexItemRect() {
return new Promise(resolve => {
// #ifndef APP-NVUE
this.$uvGetRect('.uv-index-item').then(size => {
resolve(size)
})
// #endif
// #ifdef APP-NVUE
const ref = this.$refs['uv-index-item']
dom.getComponentRect(ref, res => {
resolve(res.size)
})
// #endif
})
}
},
}
</script>
<style lang="scss" scoped>
@import '@/uni_modules/uv-ui-tools/libs/css/components.scss';
</style>