本文主要是介绍微信小程序 实现左侧竖形滑动菜单,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
参考链接:
(1)微信小程序左侧竖形滑动菜单(仿淘宝分类界面)
https://blog.csdn.net/luowei85520/article/details/90510311
一、例子1
(1)效果图
(2)数据准备
category.js中data初始化的数据(模拟),如果是跟后台数据库挂钩,可以用wx.request请求返回相似的对象数组再绑定到cartItems中。
js文件中定义jsonList
data: {cateItems:[{cate_id:1,cate_name:'洗护',children: [{ child_id: 1, name: '洁面皂', image: "../../images/thumbnail/1.jpg" }, { child_id: 2, name: '卸妆', image: "../../images/thumbnail/2.jpg" }]},{cate_id:2,cate_name:'生鲜'},{cate_id:3,cate_name:'食品'},{cate_id: 4,cate_name: '女装'},{cate_id: 5,cate_name: '百货'},{cate_id: 6,cate_name: '母婴'},{cate_id: 7,cate_name: '手机'},{cate_id: 8,cate_name: '鞋靴'},{cate_id: 9,cate_name: '运动'},{cate_id: 10,cate_name: '美家'},{cate_id: 11,cate_name: '男装'},{cate_id: 12,cate_name: '水果'},{cate_id: 13,cate_name: '电子'}],curNav:1,curIndex:0},switchRightTab:function(e){let id = e.target.dataset.id,index=e.target.dataset.index;this.setData({curNav:id,curIndex:index})},
(3)
wxml文件
<!--pages/category/category.wxml-->
<view class="container"><scroll-view class='nav_left' scroll-y='true'><block wx:for="{{cateItems}}" wx:key="{{index}}"><view class="nav_left_items {{curNav==item.cate_id?'active':''}}" bindtap="switchRightTab" data-index='{{index}}' data-id="{{item.cate_id}}">{{item.cate_name}}</view></block></scroll-view><scroll-view class="nav_right" scroll-y="true"><!--如果有数据,才遍历项--><view wx:if="{{cateItems[curIndex].children.length>0}}"><block wx:for="{{cateItems[curIndex].children}}" wx:key="{{index}}"><view class="nav_right_items"><!--界面跳转 --><navigator url="../../detail/detail"><image src="{{item.image}}"></image><text>{{item.name}}</text></navigator></view></block></view><!--如果无数据,则显示数据--><view class="nocate" wx:else><image src="../../images/without.png"></image><text>该分类暂无数据</text></view></scroll-view>
</view>
wxss文件
.container{position:fixed;width:100%;height:100%;background-color:#FFF;
}
.nav_left{width:25%;height:100%;background:#F2F2F2;text-align:center;position:absolute;top:0;left:0;
}
.nav_left .nav_left_items{height:100rpx;line-height:100rpx;font-size:28rpx;
}
.nav_left .nav_left_items.active{position:relative;background:#FFF;color:#FF5000;
}
.nav_left .nav_left_items.active::before{display: inline-block;width:6rpx;height:60rpx;background:#FE5723;content:'';position:absolute;top:20rpx;left:0;
}
.nav_right{position:absolute;top:0;right:0;width:75%;height:100%;
}
.nav_right .nav_right_items{float: left; width: 33.33%; text-align: center; padding:30rpx 0;
}
.nav_right .nav_right_items image{width: 120rpx; height: 120rpx;
}
.nav_right .nav_right_items text{display: block; margin-top: 20rpx; font-size: 28rpx; overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.nocate{padding:100rpx;text-align: center;
} .nocate image{width:70rpx;height:70rpx;
}
.nocate text{font-size:28rpx;display:block;color:#BBB;
}
/*隐藏滚动条*/
::-webkit-scrollbar{width: 0;height: 0;color: transparent;
}
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