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

<template name="tabBar"> <view class="tab-bar" style="color: {{tabBar.color}}; background: {{tabBar.backgroundColor}}; {{tabBar.position=='top'? 'top: 0' : 'bottom: 0'}};"> <block wx:for="{{tabBar.list}}" wx:key="pagePath"> <navigator hover-class="none" url="{{item.pagePath}}" open-type="redirect" class="tabbar_item {{item.clas}}" style="{{item.active? 'color: '+(item.selectedColor? item.selectedColor : tabBar.selectedColor) : ''}};position:relative;"> <image src="{{item.selectedIconPath}}" wx:if="{{item.active&&item.selectedIconPath}}" class="img"></image> <image src="{{item.iconPath}}" wx:if="{{!item.active&&item.iconPath}}" class="img"></image> <image src="{{item.logo}}" wx:if="{{item.logo}}" style="width:110rpx;height:110rpx;border:10rpx solid #ffffff;border-radius:50%;position:absolute;top:-50%;left:-40%,"></image> <text class="tabbar_text" wx:if="{{item.text}}">{{item.text}}</text> </navigator> </block> </view></template>

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

<import src="/components/tabbar.wxml" /><template is="tabBar" data="{{tabBar}}" />

在需要用的导航的页面的js中

const app = getApp(); onShow: function () { app.editTabBar(); //显示自定义的底部导航 },

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