微信小程序 二 選項卡

我們接着上一篇寫 爲首頁添加一個選項卡

看下效果

代碼：

home.wxml

<!--pages/home/home.wxml-->
<view class="swiper-tab">  
    <view class="swiper-tab-item {{currentTab==0 ? 'on' : ''}}" data-current="0" bindtap="swichNav">熱門</view>  
    <view class="swiper-tab-item {{currentTab==1 ? 'on' : ''}}" data-current="1" bindtap="swichNav">關注</view>  
    <view class="swiper-tab-item {{currentTab==2 ? 'on' : ''}}" data-current="2" bindtap="swichNav">好友</view>  
</view>  

<swiper current="{{currentTab}}" class="swiper-box" duration="300" style="height:{{winHeight - 80}}px" bindchange="bindChange">  
    <swiper-item>  
      <view>熱門</view>  
    </swiper-item>  
    <swiper-item>  
      <view>關注</view>  
    </swiper-item>  
    <swiper-item>  
      <view>好友</view>  
    </swiper-item>  
</swiper>  

home.wxss

/* pages/home/home.wxss */
.swiper-tab{  
    width: 100%;  
    border-bottom: 2rpx solid #eeeeee;  
    text-align: center;  
    line-height: 80rpx;}  
.swiper-tab-item{  font-size: 30rpx;  
    display: inline-block;  
    width: 33.33%;  
    color: #666666;  
}  
.on{ color: #f10b2e;  
    border-bottom: 5rpx solid #f10b2e;}  

.swiper-box{ display: block; height: 100%; width: 100%; overflow: hidden; }  
.swiper-box view{  
    text-align: center;  
}  

home.js

// pages/home/home.js
var app = getApp()
Page({
  data: {

    winWidth: 0,
    winHeight: 0,
    // tab切換  
    currentTab: 0,
  },
  onLoad: function () {
    var that = this;


    wx.getSystemInfo({

      success: function (res) {
        that.setData({
          winWidth: res.windowWidth,
          winHeight: res.windowHeight
        });
      }

    });
  },


  bindChange: function (e) {

    var that = this;
    that.setData({ currentTab: e.detail.current });

  },

  swichNav: function (e) {

    var that = this;

    if (this.data.currentTab === e.target.dataset.current) {
      return false;
    } else {
      that.setData({
        currentTab: e.target.dataset.current
      })
    }
  }
})  

今天就到這裏吧。。。