10行代码实现微信小程序滑动tab切换

js部分：

Page({ data: { arr: [1,2,3,4,5,6,7,8], index: 1 }, onLoad: function (options) { this.setData({ childW: this.data.arr.length * 80 }); }, tabOn: function (e) { this.setData({ index: e.currentTarget.dataset.index + 1 }); } })

wxtml部分：

<scroll-view scroll-x scroll-with-animation='true'> <view> <block wx:for='{{ arr }}'> <view catchtap='tabOn' data-index='{{ index }}'>{{ item }}</view> </block> </view> </scroll-view> <view wx:if='{{ index == 1 }}'>内容一</view> <view wx:if='{{ index == 2 }}'>内容二</view> <view wx:if='{{ index == 3 }}'>内容三</view> <view wx:if='{{ index == 4 }}'>内容四</view> <view wx:if='{{ index == 5 }}'>内容五</view> <view wx:if='{{ index == 6 }}'>内容六</view> <view wx:if='{{ index == 7 }}'>内容七</view> <view wx:if='{{ index == 8 }}'>内容八</view>

wxss部分：

.tab{ height: 50px; width: 80px; display: inline-block; text-align: center; line-height: 50px; } .tab:nth-child(odd){ background-color: #ccc; } .content{ width: 100%; height: 200px; text-align: center; line-height: 200px; }