1、将所有需要的tabbar配置在pages.json里 

"tabBar": { 		"color": "#BEC0C3", 		"selectedColor": "#00A29C", 		"borderStyle": "#EEEEEE", 		"backgroundColor": "#ffffff", 		"list": [{ 				"pagePath": "pages/tabBar/devicePage", 				"iconPath": "static/image/tabbar/device.png", 				"selectedIconPath": "static/image/tabbar/device_active.png", 				"text": "设备" 			}, 			{ 				"pagePath": "pages/tabBar/voicePage", 				"iconPath": "static/image/tabbar/device.png", 				"selectedIconPath": "static/image/tabbar/device_active.png", 				"text": "语音" 			},  			{ 				"pagePath": "pages/tabBar/warnPage", 				"iconPath": "static/image/tabbar/warning.png", 				"selectedIconPath": "static/image/tabbar/warning_active.png", 				"text": "预警" 			}, { 				"pagePath": "pages/tabBar/locationPage", 				"iconPath": "static/image/tabbar/position.png", 				"selectedIconPath": "static/image/tabbar/position_active.png", 				"text": "位置" 			}, { 				"pagePath": "pages/tabBar/fencePage", 				"iconPath": "static/image/tabbar/fence.png", 				"selectedIconPath": "static/image/tabbar/fence_active.png", 				"text": "围栏" 			}, { 				"pagePath": "pages/tabBar/myPage", 				"iconPath": "static/image/tabbar/my.png", 				"selectedIconPath": "static/image/tabbar/my_active.png", 				"text": "我的" 			} 		] 	},

2、app.vue 的globalData里加入reviseTabbarByUserType方法

globalData: { 		reviseTabbarByUserType: function () { 			let isAdmin = uni.getStorageSync('isAdmin'); 			if (isAdmin == 1) { 				uni.setTabBarItem({ 					index: 1, 					visible: false, 				}) 			} else { 				uni.setTabBarItem({ 					index: 0, 					visible: false, 				}) 			} 		} 	},

3、涉及到的所有tabbar界面在onshow里调用reviseTabbarByUserType方法

onShow() { 		getApp().globalData.reviseTabbarByUserType(); 	},

###补充reviseTabbarByUserType方法解释

在uniapp中，reviseTabbarByUserType这个方法是用来根据用户类型修改TabBar的展示内容

  reviseTabbarByUserType(userType) {     const tabbar = {       list: [],     };          // 根据用户类型设置TabBar列表     if (userType === 'admin') {       tabbar.list = [         {           pagePath: '/pages/home/home',           text: '首页',         },         {           pagePath: '/pages/admin/admin',           text: '管理',         },       ];     } else {       tabbar.list = [         {           pagePath: '/pages/home/home',           text: '首页',         },         {           pagePath: '/pages/user/user',           text: '我的',         },       ];     }          // 修改TabBar     uni.setTabBarItem(tabbar);   }