livestream-miniapp/miniprogram/custom-tab-bar/index.ts

Component({
  data: {
    value: 0,
    tabBar: [{
      url: '/pages/index/index',
      icon: 'home',
      label: '首页',
    }, {
      url: '/pages/my/my',
      icon: 'user',
      label: '我的'
    }]
  },

  methods: {
    onChange(e: WechatMiniprogram.TouchEvent) {
      this.setData({ value: e.detail.value });
      wx.switchTab({
        url: this.data.tabBar[e.detail.value].url
      });
    },
    init() {
      const page = getCurrentPages().pop();
      this.setData({
        value: this.data.tabBar.findIndex(item => item.url === `/${page?.route}`)
      });
    }
  },
})