微信小程序tab切换（点击标题切换，滑动屏幕切换）

效果图：

WXML文件

  
      
        {{item.title}}
      
  
  
    客厅
    厨房
    卧室
    KTV
    浴室
    广场
    公园
    博物馆
  

JS文件

//index.js
//获取应用实例
const app = getApp()

Page({
  data: {
    allTitle:[
      { id: 0, title: '客厅'},
      { id: 1, title: '厨房'},
      { id: 2, title: '卧室'},
      { id: 3, title: 'KTV'},
      { id: 4, title: '浴室'},
      { id: 5, title: '广场'},
      { id: 6, title: '公园'},
      { id: 7, title: '博物馆'}
    ],
    currentIndex: 0, //当前选中标题的下标
    scrollLeft: 0, //tab滚动条的位置
  },

  onLoad: function () {

  },

  //点击切换标题
  changeTitle(event){
    let index = event.target.dataset.current;//当前点击标题的index
    this.setData({
      currentIndex:index
    })
  },

  //滑动切换内容
  changeContent(event){
    let current = event.detail.current;
    let singleNavWidth = wx.getSystemInfoSync().windowWidth / 5;
    this.setData({
      currentIndex: current,
      scrollLeft: (current - 2) * singleNavWidth
    });
  }
})

WXSS文件

page{
  width: 100%;
  height: 100%;
}
.tab {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.nav {
  height: 80rpx;
  width: 100%;
  overflow: hidden;
  white-space: nowrap;
  line-height: 80rpx;
  font-size: 16px;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 99;
}


.nav-item {
  width: 20%;
  display: inline-block;
  text-align: center;
}

.active {
  color: #FF6471;
  position: relative;
}

.active:after{
  content: "";
  display: block;
  width:100%;
  height: 5rpx;
  border-radius: 8rpx;
  background: #FF6471;
  position: absolute;
  bottom: 0;
}

.content-container {
  padding-top: 180rpx;
  height: 100%;
  width: 100%;
  text-align: center;
}

.content{
  margin-top:180rpx;
}

/* 隐藏滚动条 */
::-webkit-scrollbar {
  width: 0;
  height: 0;
  color: transparent;
}