我可以根据坐标免费获取地点详细信息吗？ Geocoding/Reverse 地理编码 Api 不是免费的吗？

Question

我从Geolocation.getcurrentposition得到我的当前位置，我现在有我的坐标，我可以不用任何付款就得到这个坐标的详细信息吗

Answer 1

不适用于地理定位包。你可以使用 exp-location 包来响应本机。在此处查找文档 https://docs.expo.io/versions/latest/sdk/location/. You can get location, get longitude and latitude, then reverse geocode and return the address object. Pricing for exp https://expo.io/pricing 有一个免费选项。

import React, {useState, useEffect} from 'react'
import * as Location from 'expo-location'
import * as Premmissions from 'expo-premmissions'

export function location(){
  const [currentCoords, setCurrentCoords] = React.useState<Object>(null)
  const [location, setLocation] = React.useState<Object> (null);
  const [address, setAddress ] = React.useState<Object>(null);

  useEffect(() => {

     (async () => {
     // get phone premission
       let { status } = await Location.requestPermissionsAsync();
       if (status !== 'granted') {
         setErrorMsg('Permission to access location was denied');
         return;
       }
       //get location using exp-location package
       const location = await Location.getCurrentPositionAsync({});
       setLocation(location);
       setCurrentCoords({
         latitude: location.coords.latitude,
         longitude: location.coords.longitude,
    
       })
       // print the phone location
       console.log(location)
       const readOnlyAddress = await Location.reverseGeocodeAsync(currentCoords);
       setAddress(readOnlyAddress[0]);
       //print the postal address. 
       console.log(address)
     })();
   }, []);
   let locationText = "waiting...";
   if (location){
   locationText = JSON.stringify(location);
   }
   let addressText = "waiting";
   if(address){
    addressText = JSON.stringify(address);
   }
   return(
   <Text>{locationText}</Text>
   <Text>{addressText}</Text>
   )
}

Answer 2

我终于明白了，这个 API 基于从（GeoLocation.getCurrentPosition 方法）获取的用户当前位置，在客户端应用程序上是免费且无限制的。

https://www.bigdatacloud.com/geocoding-apis/free-reverse-geocode-to-city-api

必须阅读他们的条款和条件。

Answer 3

有一个新的在线反向地理编码服务可用。它处于启动阶段。无论如何，使用 http/s 请求的反向地理编码引擎是可能的。该服务的基本演示在这里。 https://feroeg.com/Demo.html 免责声明：我是该网站的所有者。数据来自 Open StreetMap 和 OpenAddresses。随意尝试一下。你可以用你的浏览器查询。示例：https://www.feroeg.com/address?lat=40.786138&lon=-73.950691&mode=text

我可以根据坐标免费获取地点详细信息吗？ Geocoding/Reverse 地理编码 Api 不是免费的吗？

Can I get place details against a coordinate for free?? Geocoding/Reverse Geocoding Api is not free?

maps

react-native