實現效果
image.png
ScrollProgress組件
<template>
<div class="flex justify-center items-center w-full mb-12">
<div ref="progress" class="w-45 h-4 bg-gray-300 rounded-2 relative">
<div ref="progressPivot" class="h-full w-11 bg-dgray rounded-2 absolute"></div>
</div>
</div>
</template>
<script type="text/ecmascript-6">
export default {
props: {
progress: {
type: Number,
default: 0
},
progressWidth: {
type: Number,
default: 45
},
progressHeight: {
type: Number,
default: 4
},
pivotWidth: {
type: Number,
default: 11
},
},
watch: {
progress(value) {
this.$refs.progressPivot.style.left = (this.progressWidth - this.pivotWidth) * value + 'px'
}
},
mounted() {
this.$refs.progress.style.height = this.progressHeight + 'px'
this.$refs.progress.style.width = this.progressWidth + 'px'
this.$refs.progressPivot.style.width = this.pivotWidth + 'px'
},
}
</script>
使用示例
<!-- scrollView內容 -->
<div ref="scrollView" class="overflow-x-scroll w-100">
<div v-for="(i, index) in list" :key="index" class="text-12 w-70 mr-8">
{{i}}
</div>
</div>
<!--進度條 -->
<scroll-progress :progress="progress" />
import ScrollProgress from '@/components/ScrollProgress'
components: {
ScrollProgress
},
<!-- 監(jiān)聽數據列表砰左，網絡請求結束后顯示列表才能獲取到scrollView -->
watch: {
list() {
this.$nextTick(() => {
let scrollView = this.$refs.scrollView;
if (!scrollView) return
scrollView.addEventListener("scroll", this.scroll, false);
})
}
},
methods: {
scroll(e) {
let leftViewOffset = e.target.scrollLeft;
let contentW = e.target.scrollWidth-e.target.clientWidth
this.progress = leftViewOffset/contentW
},
}
使用時導入css樣式即可 tailwindcss
