有沒有辦法避免更新 useEffect 中的回調(diào)？例如，我使用geofire訂閱了一個(gè)事件，它會(huì)監(jiān)聽更改并接收位置。我需要更新我的狀態(tài)，而無(wú)需每次更新時(shí)都訂閱。當(dāng)前行為訂閱 geofire 并接收位置 (A)用新位置更新我的狀態(tài) (A)再次訂閱geofire并接收位置（A）這是一個(gè)無(wú)限循環(huán)。而且我無(wú)法接收其他位置預(yù)期行為僅訂閱一次 geofire 并接收位置 (A,B,C)使用新位置（A、B、C）更新我的狀態(tài)import React, {useState, useEffect} from 'react';import {View, Text} from 'react-native';import {GeoPosition, GeoError} from 'react-native-geolocation-service';import {getCurrentLocation, LocationInfo} from '../../util/geolocation';import GeoFireService, {EVENT_TYPE} from './services/GeoFireService';interface CurrentLocation {  [key: string]: {    location: [number, number];    distance: number;  };}const Ads = () => {  const [locationInfo, setLocationInfo] = useState({    latitude: 0,    longitude: 0,    altitude: 0,    accuracy: 0,  } as LocationInfo);  const [currentLocation, setCurrentLocation] = useState({});  // set the current location  useEffect(() => {    getCurrentLocation(      (position: GeoPosition) => {        const {latitude, longitude, accuracy, altitude} = position.coords;        setLocationInfo({latitude, longitude, accuracy, altitude});      },      (err: GeoError) => {        console.log(err);      },    );  }, []);  // get ads  useEffect(() => {    (async () => {      if (locationInfo.latitude === 0 && locationInfo.longitude === 0) {        return null;      }      // this must be execute only once      await GeoFireService.queryToRadius(        [-34.5742746, -58.4744191],        30,        (key: string, location: [number, number], distance: number,) => {          // update state           setCurrentLocation({            ...currentLocation,            [key]: {location},          });        },      );    })();