微信小程序自定义tabBar组件开发详解

本文实例为大家分享了微信小程序自定义tabBar组件的具体代码，供大家参考，具体内容如下

以下代码保存在github地址

先看一看目录

template文件夹里存放tabbar模板。

template/template.wxml

template.css

.icon{
 width:54rpx;
 height: 54rpx;
}
.tabBar{
 width:100%;
 position: fixed;
 bottom:0;
 padding:10rpx;
 margin-left:-4rpx;
 background:#F7F7FA;
 font-size:20rpx;
 color:#8A8A8A;
 box-shadow: 6rpx 6rpx 6rpx 6rpx #aaa;
}

 .tabBar-item{
 float:left;
 width:25%;
 text-align: center;
 overflow: hidden;
}

.tabBartext{
 color:red;
}

template.js

//初始化数据
function tabbarinit() {
 return [
 { "current":0,
 "pagePath": "/pages/index/index",
 "iconPath": "/imgs/home.png",
 "selectedIconPath": "/imgs/home_on.png",
 "text": "主页"
 },
 {
 "current": 0,
 "pagePath": "/pages/news/news",
 "iconPath": "/imgs/message.png",
 "selectedIconPath": "/imgs/message_on.png",
 "text": "资讯"

 },
 {
 "current": 0,
 "pagePath": "/pages/category/category",
 "iconPath": "/imgs/category.png",
 "selectedIconPath": "/imgs/category_on.png",
 "text": "分类"
 },
 {
 "current": 0,
 "pagePath": "/pages/buy/buy",
 "iconPath": "/imgs/buy.png",
 "selectedIconPath": "/imgs/buy_on.png",
 "text": "购物"
 }
 ]

}
//tabbar 主入口
function tabbarmain(bindName = "tabdata", id, target) {
 var that = target;
 var bindData = {};
 var otabbar = tabbarinit();
 otabbar[id]['iconPath'] = otabbar[id]['selectedIconPath']//换当前的icon
 otabbar[id]['current'] = 1;
 bindData[bindName] = otabbar
 that.setData({ bindData });
}

module.exports = {
 tabbar: tabbarmain
}

到此改组件完成，然后讲解一下使用方法。
我们先把样式载入到app.wxss

@import "/template/template.wxss";

在index文件夹

index.wxml