uniapp组件之tab选项卡滑动切换功能实现
薇森 人气:0uniapp组件之tab选项卡滑动切换
效果如下：
代码如下：
<template>
<view class="content">
<view class="nav">
<!-- 选项卡水平方向滑动，scroll-with-animation是滑动到下一个选项时，有一个延时效果 -->
<scroll-view class="tab-scroll" scroll-x="true" scroll-with-animation :scroll-left="scrollLeft">
<view class="tab-scroll_box">
<!-- 选项卡类别列表 -->
<view class="tab-scroll_item" v-for=" (item,index) in category" :key="index" :class="{'active':isActive==index}" @click="chenked(index)">
{{item.name}}
</view>
</view>
</scroll-view>
</view>
<!-- 选项卡内容轮播滑动显示，current为当前第几个swiper子项 -->
<swiper @change="change" :current="isActive" class="swiper-content" :style="fullHeight">
<swiper-item class="swiperitem-content">
<scroll-view scroll-y style="height: 100%;">
<view class="nav_item" >
选项卡1页面
</view>
</scroll-view>
</swiper-item>
<swiper-item class="swiperitem-content">
<scroll-view scroll-y style="height: 100%;">
<view class="nav_item" >
选项卡2页面
</view>
</scroll-view>
</swiper-item>
<swiper-item class="swiperitem-content">
<scroll-view scroll-y style="height: 100%;">
<view class="nav_item" >
选项卡3页面
</view>
</scroll-view>
</swiper-item>
<swiper-item class="swiperitem-content">
<scroll-view scroll-y style="height: 100%;">
<view class="nav_item" >
选项卡4页面
</view>
</scroll-view>
</swiper-item>
<swiper-item class="swiperitem-content">
<scroll-view scroll-y style="height: 100%;">
<view class="nav_item" >
选项卡5页面
</view>
</scroll-view>
</swiper-item>
<swiper-item class="swiperitem-content">
<scroll-view scroll-y style="height: 100%;">
<view class="nav_item" >
选项卡6页面
</view>
</scroll-view>
</swiper-item>
</swiper>
</view>
</template>
<script>
export default {
watch:{
// swiper与上面选项卡联动
currentindex(newval){
this.isActive = newval;
this.scrollLeft = 0;
// 滑动swiper后，每个选项距离其父元素最左侧的距离
for (let i = 0; i < newval - 1; i++) {
this.scrollLeft += this.category[i].width
};
},
},
data() {
return {
isActive: 0,
index: 0,
currentindex:0,
category:[
{
id:1,
name:'选项卡一',
},
{
id:2,
name:'选项卡二',
},
{
id:3,
name:'选项卡三',
},
{
id:4,
name:'选项卡四',
},
{
id:5,
name:'选项卡五',
},
{
id:6,
name:'选项卡六',
},
],
contentScrollW: 0, // 导航区宽度
scrollLeft: 0, // 横向滚动条位置
fullHeight:"",
}
},
mounted() {
var that = this;
//获取手机屏幕的高度，让其等于swiper的高度，从而使屏幕充满
uni.getSystemInfo({
success: function (res) {
that.fullHeight ="height:" + res.windowHeight + "px";
}
});
// 获取标题区域宽度，和每个子元素节点的宽度
this.getScrollW()
},
methods: {
// 获取标题区域宽度，和每个子元素节点的宽度以及元素距离左边栏的距离
getScrollW() {
const query = uni.createSelectorQuery().in(this);
query.select('.tab-scroll').boundingClientRect(data => {
// 拿到 scroll-view 组件宽度
this.contentScrollW = data.width
}).exec();
query.selectAll('.tab-scroll_item').boundingClientRect(data => {
let dataLen = data.length;
for (let i = 0; i < dataLen; i++) {
// scroll-view 子元素组件距离左边栏的距离
this.category[i].left = data[i].left;
// scroll-view 子元素组件宽度
this.category[i].width = data[i].width
}
}).exec()
},
// 当前点击子元素靠左留一个选项展示，子元素宽度不相同也可实现
chenked(index) {
this.isActive = index;
this.scrollLeft = 0;
for (let i = 0; i < index - 1; i++) {
this.scrollLeft += this.category[i].width
};
},
// swiper滑动时，获取其索引，也就是第几个
change(e){
const {current} = e.detail;
this.currentindex = current;
},
}
}
</script>
<style lang="scss">
page{
height: 100%;
display: flex;
background-color: #FFFFFF;
}
.content{
display: flex;
flex-direction: column;
width: 100%;
flex: 1;
.nav{
border-top: 1rpx solid #f2f2f2;
background-color: #fceeee;
position: fixed;
z-index: 99;
width: 100%;
align-items: center;
height: 100rpx;
.tab-scroll{
flex: 1;
overflow: hidden;
box-sizing: border-box;
padding-left: 30rpx;
padding-right: 30rpx;
.tab-scroll_box{
display: flex;
align-items: center;
flex-wrap: nowrap;
box-sizing: border-box;
.tab-scroll_item{
line-height: 60rpx;
margin-right: 35rpx;
flex-shrink: 0;
padding-bottom:10px;
display: flex;
justify-content: center;
font-size: 16px;
padding-top: 10px;
}
}
}
}
.swiper-content{
padding-top: 120rpx;
flex: 1;
.swiperitem-content{
background-color: #ffffff;
.nav_item{
background-color: #FFFFFF;
padding:20rpx 40rpx 0rpx 40rpx ;
}
}
}
}
.active {
position: relative;
color: #ff0000;
font-weight: 600;
}
.active::after {
content: "";
position: absolute;
width: 130rpx;
height: 4rpx;
background-color: #ff0000;
left: 0px;
right: 0px;
bottom: 0px;
margin: auto;
}
/* 隐藏滚动条，但依旧具备可以滚动的功能 */
/deep/.uni-scroll-view::-webkit-scrollbar {
display: none
}
</style>
注意：css当中需要加上以下，为了隐藏滚动条，否则会出现下图效果
/* 隐藏滚动条，但依旧具备可以滚动的功能 */
/deep/.uni-scroll-view::-webkit-scrollbar {
display: none
}
补充：uniapp实现tabs切换（可滑动）
uniapp实现tabs切换（可滑动）
<template>
<view class="body-view">
<!-- 使用scroll-view实现tabs滑动切换 -->
<scroll-view class="top-menu-view" scroll-x="true" :scroll-into-view="tabCurrent">
<view class="menu-topic-view" v-for="item in tabs" :id="'tabNum'+item.id" :key="(item.id - 1)" @click="swichMenu(item.id - 1)">
<view :class="currentTab==(item.id - 1) ? 'menu-topic-act' : 'menu-topic'">
<text class="menu-topic-text">{{item.name}}</text>
<view class="menu-topic-bottom">
<view class="menu-topic-bottom-color"></view>
</view>
</view>
</view>
</scroll-view>
<!-- 内容 -->
<swiper class="swiper-box-list" :current="currentTab" @change="swiperChange">
<swiper-item class="swiper-topic-list" v-for="item in swiperDateList" :key="item.id">
<view class="swiper-item">
{{item.content}}
</view>
</swiper-item>
</swiper>
</view>
</template>
<script>
export default {
data() {
return {
tabs: [{
id: 1,
name: '推荐'
},
{
id: 2,
name: '交通交通'
},
{
id: 3,
name: '住房'
},
{
id: 4,
name: '社会保障'
},
{
id: 5,
name: '民生热点'
},
{
id: 6,
name: '即日头条'
},
{
id: 7,
name: '新闻联播'
},
],
currentTab: 0,
tabCurrent: 'tabNum1',
// Tab切换内容
swiperDateList: [{
id: 1,
content: '推荐'
},
{
id: 2,
content: '交通交通'
},
{
id: 3,
content: '住房'
},
{
id: 4,
content: '社会保障'
},
{
id: 5,
content: '民生热点'
},
{
id: 6,
content: '即日头条'
},
{
id: 7,
content: '新闻联播'
},
],
}
},
onLoad() {
},
methods: {
swichMenu(id) {
this.currentTab = id
console.log(11,id)
this.tabCurrent = 'tabNum'+ id
},
swiperChange(e) {
console.log(22,e.detail.current)
let index = e.detail.current
this.swichMenu(index)
}
}
}
</script>
<style scoped lang="scss">
.body-view {
height: 100vh;
width: 100%;
display: flex;
flex: 1;
flex-direction: column;
overflow: hidden;
align-items: flex-start;
justify-content: center;
}
.top-menu-view {
display: flex;
position: fixed;
top: 100rpx;
left: 0;
white-space: nowrap;
width: 100%;
background-color: #FFFFFF;
height: 86rpx;
line-height: 86rpx;
border-top: 1rpx solid #d8dbe6;
.menu-topic-view {
display: inline-block;
white-space: nowrap;
height: 86rpx;
position: relative;
.menu-topic-text {
font-size: 30rpx;
color: #303133;
padding: 10rpx 40rpx;
}
// .menu-topic-act {
// margin-left: 30upx;
// margin-right: 10upx;
// position: relative;
// height: 100%;
// display: flex;
// align-items: center;
// justify-content: center;
// }
.menu-topic-bottom {
position: absolute;
bottom: 0;
width: 100%;
.menu-topic-bottom-color {
width: 40rpx;
height: 4rpx;
}
}
.menu-topic-act .menu-topic-bottom {
display: flex;
justify-content: center;
}
.menu-topic-act .menu-topic-bottom-color {
background: #3d7eff;
}
}
}
.swiper-box-list {
width: 100%;
padding-top: 200rpx;
flex:1;
background-color: #FFFFFF;
.swiper-topic-list {
width: 100%;
}
}
</style>
继续加油呀~
加载全部内容