[小程序] 微信小程序制作顶部导航栏

复制代码
index.jx
var app = getApp()
Page({
 data: {
   navbar: ['科普点', '动物场馆', '游览点','卫生间'],
   currentTab: 0
 },
 navbarTap: function(e){
   this.setData({
     currentTab: e.currentTarget.dataset.idx
   })
 }
})
index.wxml
<!--导航条-->
<view class="navbar">
 <text wx:for="{{navbar}}" data-idx="{{index}}" class="item {{currentTab==index ? 'active' : ''}}" wx:key="unique" bindtap="navbarTap">{{item}}</text>
</view>
<!--科普点-->
<view hidden="{{currentTab!==0}}">
 tab_01
</view>
<!--动物场馆-->
<view hidden="{{currentTab!==1}}">
 tab_02
</view>
<!--游览点-->
<view hidden="{{currentTab!==2}}">
 tab_03
</view>
index.wxss
page{
 display: flex;
 flex-direction: column;
 height: 100%;
}
.navbar{
 flex: none;
 display: flex;
 background: #fff;
}
.navbar .item{
 position: relative;
 flex: auto;
 text-align: center;
 line-height: 80rpx;
}
.navbar .item.active{
 color: #FFCC00;
}
.navbar .item.active:after{
 content: "";
 display: block;
 position: absolute;
 bottom: 0;
 left: 0;
 right: 0;
 height: 4rpx;
 background: #FFCC00;
}