微信小程序开发实现的选项卡(窗口顶部/底部TabBar)页面切换功能图文详解

本文实例讲述了微信小程序开发实现的选项卡(窗口顶部/底部TabBar)页面切换功能。分享给大

本文实例讲述了微信小程序开发实现的选项卡(窗口顶部/底部TabBar)页面切换功能。分享给大家供大家参考，具体如下：

微信小程序开发中选项卡.在android中选项卡一般用fragment,到了小程序这里瞬间懵逼了.

总算做出来了.分享出来看看.

先看效果:

再上代码:

1.index.wxml

<!--index.wxml-->
<view class="swiper-tab">
 <view class="swiper-tab-list {{currentTab==0 ? 'on' : ''}}" data-current="0" bindtap="swichNav">哈哈</view>
 <view class="swiper-tab-list {{currentTab==1 ? 'on' : ''}}" data-current="1" bindtap="swichNav">呵呵</view>
 <view class="swiper-tab-list {{currentTab==2 ? 'on' : ''}}" data-current="2" bindtap="swichNav">嘿嘿</view>
</view>
<swiper current="{{currentTab}}" class="swiper-box" duration="300" style="height:{{winHeight - 31}}px" bindchange="bindChange">
 <!-- 我是哈哈 -->
 <swiper-item>
 <view>我是哈哈</view>
 </swiper-item>
 <!-- 我是呵呵 -->
 <swiper-item>
 <view>我是呵呵</view>
 </swiper-item>
 <!-- 我是嘿嘿 -->
 <swiper-item>
 <view>我是嘿嘿</view>
 </swiper-item>
</swiper>

2.index.wxss

/**index.wxss**/
.swiper-tab{
 width: 100%;
 border-bottom: 2rpx solid #777777;
 text-align: center;
 line-height: 80rpx;}
.swiper-tab-list{ font-size: 30rpx;
 display: inline-block;
 width: 33.33%;
 color: #777777;
}
.on{ color: #da7c0c;
 border-bottom: 5rpx solid #da7c0c;}
.swiper-box{ display: block; height: 100%; width: 100%; overflow: hidden; }
.swiper-box view{
 text-align: center;
}

3.index.js

//index.js
//获取应用实例
var app = getApp()
Page( {
 data: {
 /**
 * 页面配置
 */
 winWidth: 0,
 winHeight: 0,
 // tab切换
 currentTab: 0,
 },
 onLoad: function() {
 var that = this;
 /**
 * 获取系统信息
 */
 wx.getSystemInfo( {
 success: function( res ) {
 that.setData( {
 winWidth: res.windowWidth,
 winHeight: res.windowHeight
 });
 }
 });
 },
 /**
 * 滑动切换tab
 */
 bindChange: function( e ) {
 var that = this;
 that.setData( { currentTab: e.detail.current });
 },
 /**
 * 点击tab切换
 */
 swichNav: function( e ) {
 var that = this;
 if( this.data.currentTab === e.target.dataset.current ) {
 return false;
 } else {
 that.setData( {
 currentTab: e.target.dataset.current
 })
 }
 }
})

之前没有上传代码.这是下图的代码

demo源码点击此处本站下载。

这样一个类似viewpage的顶部选项卡就出来了.

微信小程序开发中窗口底部tab栏切换页面很简单很方便.

代码:

1.app.json

//app.json
{
 "pages":[
 "pages/index/index",
 "pages/logs/logs"
 ],
 "window":{
 "backgroundTextStyle":"light",
 "navigationBarBackgroundColor": "#999999",
 "navigationBarTitleText": "tab",
 "navigationBarTextStyle":"white"
 },
 "tabBar": {
 "color": "#ccc",
 "selectedColor": "#35495e",
 "borderStyle": "white",
 "backgroundColor": "#f9f9f9",
 "list": [
 {
 "text": "首页",
 "pagePath": "pages/index/index",
 "iconPath": "images/home.png",
 "selectedIconPath": "images/home-actived.png"
 },
 {
 "text": "目录",
 "pagePath": "pages/catalogue/catalogue",
 "iconPath": "images/note.png",
 "selectedIconPath": "images/note-actived.png"
 },
 {
 "text": "我的",
 "pagePath": "pages/mine/mine",
 "iconPath": "images/profile.png",
 "selectedIconPath": "images/profile-actived.png"
 }
 ]
 }
}

pagePath是页面路径.iconPath是图片路径，icon 大小限制为40kb. selectedIconPath:选中时的图片路径，icon 大小限制为40kb

tab Bar的最多5个,最少2个.

在pages目录下写好页面即可切换.

希望本文所述对大家微信小程序开发有所帮助。