父组件（hooks）调用子组件（hooks）的方法

子组件

import React, { useImperativeHandle, forwardRef } from "react"
import { View} from '@tarojs/components'
 
let Child = (props, ref) => {
  useImperativeHandle(ref, () => ({ // 暴露给父组件的方法
    getInfo,
    refreshInfo: () => {
    	console.log("子组件refreshInfo方法")
    }
  }))
  
  const getInfo = () => {
    console.log("子组件getInfo方法")
  }

  return (
    <View>子组件</View>
  )
}
Child = forwardRef(Child)
export default Child

父组件

import {useRef} from 'react
import { View} from '@tarojs/components'
import Child form './Child'

const Parent = () => {
	const childRef = useRef();
	const getChildCallback = () => {
		childRef.current.getInfo()
		childRef.current.refreshInfo()
	}

	return (
		<>
			<Child ref={childRef} />
			<View onClick={getChildCallback}>触发子组件方法</View>
		</>
	)
}