wxmini/custom-tab-bar/index.js

// custom-tab-bar/index.js
Component({
  data: {
    rightId:wx.getStorageSync('rightId') || 0,
    list: [],
    list1: [
      {
        "pagePath": "../home/home",
        "text": "首页",
        "iconPath": "/img/index_unaction.png",
        "selectedIconPath": "/img/index_action.png"
        },
        {
          "pagePath": "../me/me",
          "text": "我的",
          "iconPath": "/img/me_unaction.png",
          "selectedIconPath": "/img/me_action.png"
        }
    ],
    list2: [
      {
        "pagePath": "../home/home",
        "text": "首页",
        "iconPath": "/img/index_unaction.png",
        "selectedIconPath": "/img/index_action.png"
        },
        {
          "pagePath": "../index/index",
          "text": "频道",
          "iconPath": "/img/index_unaction.png",
          "selectedIconPath": "/img/index_action.png"
          },
        {
          "pagePath": "../me/me",
          "text": "我的",
          "iconPath": "/img/me_unaction.png",
          "selectedIconPath": "/img/me_action.png"
        }
    ]
  },
  attached() {
    this.changeList()
    getApp().eventBus.on('rightChange', data => {
      if (data !== this.data.rightId) {
        this.setData({
          rightId: data
        })
        this.changeList()
      }
    })
  },
  detached() {
    app.eventBus.off('rightChange')
  },
  methods: {
    changeList() {
      this.setData({
        rightId: wx.getStorageSync('rightId') || 0
      })
      if (this.data.rightId === 1) {
        this.setData({
          list: this.data.list2
        })
      } else {
        this.setData({
          list: this.data.list1
        })
      }
    },
    switchTab(e) {
      const data = e.currentTarget.dataset
      const url = data.path
      console.log("点击切换"+ url);
      wx.switchTab({
        url: url,
        fail:function(e){
          console.log("点击切换失败"+ e.errMsg);

        }
      })
    }
  }
})