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112 lines
2.6 KiB
112 lines
2.6 KiB
<template>
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<view class="navTabBox">
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<view class="longTab">
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<scroll-view scroll-x="true" style="white-space: nowrap; display: flex" scroll-with-animation
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:scroll-left="tabLeft">
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<view class="longItem" :style='"width:"+isWidth+"px"' :data-index="index"
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:class="index===tabClick?'click':''" v-for="(item,index) in tabTitle" :key="index" :id="'id'+index"
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@click="longClick(index)">{{item}}
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<text v-if="tabNum[index]!=0 && tabNum.length == tabTitle.length && tabNum[index] != undefined"
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style="color: #FFFFFF;font-size: 10rpx;background-color: red; width: 20rpx; height: 20rxp; border-radius: 20rpx;padding-left: 2rpx;padding-right: 2rpx;">{{tabNum[index]}}</text>
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</view>
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<view class="underlineBox" :style='"transform:translateX("+isLeft+"px);width:"+isWidth+"px"'>
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<view class="underline"></view>
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</view>
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</scroll-view>
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</view>
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</view>
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</template>
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<script>
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export default {
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name: 'navTab',
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props: {
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tabTitle: {
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type: Array,
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default: []
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},
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tabNum: {
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type: Array,
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default: []
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}
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},
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data() {
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return {
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tabClick: 0, //导航栏被点击
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isLeft: 0, //导航栏下划线位置
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isWidth: 0, //每个导航栏占位
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tabLeft: 0,
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current: 0 //当前的tab
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};
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},
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created() {
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var that = this
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// 获取设备宽度
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uni.getSystemInfo({
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success(e) {
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if (that.tabTitle.length <= 5) {
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that.isWidth = e.windowWidth / that.tabTitle.length //宽度除以导航标题个数=一个导航所占宽度
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} else {
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that.isWidth = e.windowWidth / 5
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}
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}
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})
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},
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methods: {
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// 导航栏点击
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longClick(index) {
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if (this.tabTitle.length > 5) {
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var tempIndex = index - 2;
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tempIndex = tempIndex <= 0 ? 0 : tempIndex;
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this.tabLeft = (index - 2) * this.isWidth //设置下划线位置
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}
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this.tabClick = index //设置导航点击了哪一个
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this.isLeft = index * this.isWidth //设置下划线位置
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if (this.current != index) {
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this.$emit('onTabClick', index); //设置swiper的第几页
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this.current = index
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}
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}
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}
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}
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</script>
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<style lang="scss">
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.navTabBox {
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width: 100vw;
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color: rgba(255, 255, 255, 0.50);
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.click {
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color: white;
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}
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.longTab {
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width: 100%;
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.longItem {
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height: 45px;
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display: inline-block;
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line-height: 45px;
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text-align: center;
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font-size: 28rpx;
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}
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.underlineBox {
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height: 3px;
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width: 20%;
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display: flex;
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align-content: center;
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justify-content: center;
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transition: .5s;
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.underline {
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width: 42upx;
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height: 2px;
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background-color: white;
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}
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}
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}
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}
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</style>
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