微信小程序开发之选项卡(窗口顶部TabBar)页面切换

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[html] view plain copy
<!--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

[css] view plain copy
/**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

[javascript] view plain copy
//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

})

}

}

})