微信小程序实现自定义底部导航

本文实例为大家分享了微信小程序实现底部导航的具体代码，供大家参考，具体内容如下

建一个tabbar.wxml组件

app.js中定义

 editTabBar: function () {
 //使用getCurrentPages可以获取当前加载中所有的页面对象的一个数组，数组最后一个就是当前页面。

 var curPageArr = getCurrentPages(); //获取加载的页面
 var curPage = curPageArr[curPageArr.length - 1]; //获取当前页面的对象
 var pagePath = curPage.route; //当前页面url
 if (pagePath.indexOf('/') != 0) {
 pagePath = '/' + pagePath;
 }

 var tabBar = this.globalData.tabBar;
 for (var i = 0; i < tabBar.list.length; i++) {
 tabBar.list[i].active = false;
 if (tabBar.list[i].pagePath == pagePath) {
 tabBar.list[i].active = true; //根据页面地址设置当前页面状态 
 }
 }
 curPage.setData({
 tabBar: tabBar
 });
 },
 globaldata: {
 tabBar: {
 "color": "#B0B6B8",
 "selectedColor": "#4877BD",
 "backgroundColor": "#ffffff",
 "borderStyle": "#ccc",
 "list": [{
 "pagePath": "/pages/messagelist/messagelist",
 "text": "消息",
 "iconPath": "/img/message-1.png",
 "selectedIconPath": "/img/message-2.png",
 "selectedColor": "#4877BD",
 "clas": "menu-item",
 active: false
 },
 {
 "pagePath": "/pages/salefriend/salefriend",
 "text": "名片",
 "iconPath": "/img/card-1.png",
 "selectedIconPath": "/img/card-2.png",
 "selectedColor": "#4877BD",
 "clas": "menu-item",
 active: false
 },
 {
 "pagePath": "/pages/customnav/customnav",
 "text": "",
 // "iconPath": "/img/gifts.png",
 // "selectedIconPath": "/img/gifts.png",
 "logo":"/img/logo.png",
 "selectedColor": "#4877BD",
 "clas": "menu-item",
 islogo:true,
 active: false
 },
 {
 "pagePath": "/pages/salescircle/salescircle",
 "text": "发现",
 "iconPath": "/img/discover-1.png",
 "selectedIconPath": "/img/discover-2.png",
 "selectedColor": "#4877BD",
 "clas": "menu-item",
 active: false
 },
 {
 "pagePath": "/pages/mine/mine",
 "text": "我的",
 "iconPath": "/img/mine-1.png",
 "selectedIconPath": "/img/mine-2.png",
 "selectedColor": "#4877BD",
 "clas": "menu-item",
 active: false
 }
 ],
 "position": "bottom"
 },
 },

在需要用的导航的页面的wxml