uniapp动态设置tabbar_Vue.js

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);
  }