pq-video-mp/src/pages/home/home.tsx

import { useMemo } from 'react'
import type CustomTabBar from '../../custom-tab-bar'
import { View, Text } from '@tarojs/components'
import Taro, { useLoad, useDidShow } from '@tarojs/taro'
import './home.less'

export default function Index() {
  const page = useMemo(() => Taro.getCurrentInstance().page, [])

  useLoad(() => {
    console.log('Page loaded.')
  })

  useDidShow(() =>{
    const tabbar = Taro.getTabBar<CustomTabBar>(page)
    tabbar?.setSelected(1)

  })

  return (
    <View className='index'>
      <Text>Hello world!</Text>
    </View>
  )
}