我想在 Android 中解析 Google Map API 以进行反向地理编码答案

【问题标题】：I want to parse Google Map API for reverse geocode in Android我想在 Android 中解析 Google Map API 以进行反向地理编码
【发布时间】：2013-05-20 19:03:47
【问题描述】：

http://maps.googleapis.com/maps/api/geocode/xml?latlng=23.0043673,72.5411868999996&sensor=false

这个链接给了我以下结果此 XML 文件似乎没有任何与之关联的样式信息。文档树如下所示。

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<GeocodeResponse>
<status>OK</status>
<result>
<type>route</type>
<formatted_address>
Dharnidhar Road, Vasna, Ahmedabad, Gujarat 380007, India
</formatted_address>
<address_component>
<long_name>Dharnidhar Road</long_name>
<short_name>Dharnidhar Road</short_name>
<type>route</type>
</address_component>
<address_component>
<long_name>Vasna</long_name>
<short_name>Vasna</short_name>
<type>sublocality</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>locality</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>administrative_area_level_2</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Gujarat</long_name>
<short_name>GJ</short_name>
<type>administrative_area_level_1</type>
<type>political</type>
</address_component>
<address_component>
<long_name>India</long_name>
<short_name>IN</short_name>
<type>country</type>
<type>political</type>
</address_component>
<address_component>
<long_name>380007</long_name>
<short_name>380007</short_name>
<type>postal_code</type>
</address_component>
<geometry>
<location>
<lat>23.0043870</lat>
<lng>72.5419184</lng>
</location>
<location_type>APPROXIMATE</location_type>
<viewport>
<southwest>
<lat>23.0030380</lat>
<lng>72.5405695</lng>
</southwest>
<northeast>
<lat>23.0057360</lat>
<lng>72.5432674</lng>
</northeast>
</viewport>
<bounds>
<southwest>
<lat>23.0041405</lat>
<lng>72.5414125</lng>
</southwest>
<northeast>
<lat>23.0046335</lat>
<lng>72.5424244</lng>
</northeast>
</bounds>
</geometry>
</result>
<result>
<type>neighborhood</type>
<type>political</type>
<formatted_address>
Yashkamal Society, Ahmedabad, Gujarat 380007, India
</formatted_address>
<address_component>
<long_name>Yashkamal Society</long_name>
<short_name>Yashkamal Society</short_name>
<type>neighborhood</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>locality</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>administrative_area_level_2</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Gujarat</long_name>
<short_name>GJ</short_name>
<type>administrative_area_level_1</type>
<type>political</type>
</address_component>
<address_component>
<long_name>India</long_name>
<short_name>IN</short_name>
<type>country</type>
<type>political</type>
</address_component>
<address_component>
<long_name>380007</long_name>
<short_name>380007</short_name>
<type>postal_code</type>
</address_component>
<geometry>
<location>
<lat>23.0089040</lat>
<lng>72.5446990</lng>
</location>
<location_type>APPROXIMATE</location_type>
<viewport>
<southwest>
<lat>23.0016970</lat>
<lng>72.5373369</lng>
</southwest>
<northeast>
<lat>23.0125600</lat>
<lng>72.5510640</lng>
</northeast>
</viewport>
<bounds>
<southwest>
<lat>23.0016970</lat>
<lng>72.5373369</lng>
</southwest>
<northeast>
<lat>23.0125600</lat>
<lng>72.5510640</lng>
</northeast>
</bounds>
</geometry>
</result>
<result>
<type>sublocality</type>
<type>political</type>
<formatted_address>Vasna, Ahmedabad, Gujarat, India</formatted_address>
<address_component>
<long_name>Vasna</long_name>
<short_name>Vasna</short_name>
<type>sublocality</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>locality</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>administrative_area_level_2</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Gujarat</long_name>
<short_name>GJ</short_name>
<type>administrative_area_level_1</type>
<type>political</type>
</address_component>
<address_component>
<long_name>India</long_name>
<short_name>IN</short_name>
<type>country</type>
<type>political</type>
</address_component>
<geometry>
<location>
<lat>23.0043673</lat>
<lng>72.5411869</lng>
</location>
<location_type>APPROXIMATE</location_type>
<viewport>
<southwest>
<lat>22.9964810</lat>
<lng>72.5357220</lng>
</southwest>
<northeast>
<lat>23.0125600</lat>
<lng>72.5530250</lng>
</northeast>
</viewport>
<bounds>
<southwest>
<lat>22.9964810</lat>
<lng>72.5357220</lng>
</southwest>
<northeast>
<lat>23.0125600</lat>
<lng>72.5530250</lng>
</northeast>
</bounds>
</geometry>
</result>
<result>
<type>postal_code</type>
<formatted_address>Ahmedabad, Gujarat 380007, India</formatted_address>
<address_component>
<long_name>380007</long_name>
<short_name>380007</short_name>
<type>postal_code</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>locality</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>administrative_area_level_2</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Gujarat</long_name>
<short_name>GJ</short_name>
<type>administrative_area_level_1</type>
<type>political</type>
</address_component>
<address_component>
<long_name>India</long_name>
<short_name>IN</short_name>
<type>country</type>
<type>political</type>
</address_component>
<geometry>
<location>
<lat>22.9967321</lat>
<lng>72.5500596</lng>
</location>
<location_type>APPROXIMATE</location_type>
<viewport>
<southwest>
<lat>22.9810681</lat>
<lng>72.5317127</lng>
</southwest>
<northeast>
<lat>23.0220193</lat>
<lng>72.5760833</lng>
</northeast>
</viewport>
<bounds>
<southwest>
<lat>22.9810681</lat>
<lng>72.5317127</lng>
</southwest>
<northeast>
<lat>23.0220193</lat>
<lng>72.5760833</lng>
</northeast>
</bounds>
</geometry>
</result>
<result>
<type>locality</type>
<type>political</type>
<formatted_address>Ahmedabad, Gujarat, India</formatted_address>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>locality</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>administrative_area_level_2</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Gujarat</long_name>
<short_name>GJ</short_name>
<type>administrative_area_level_1</type>
<type>political</type>
</address_component>
<address_component>
<long_name>India</long_name>
<short_name>IN</short_name>
<type>country</type>
<type>political</type>
</address_component>
<geometry>
<location>
<lat>23.0395677</lat>
<lng>72.5660045</lng>
</location>
<location_type>APPROXIMATE</location_type>
<viewport>
<southwest>
<lat>22.9028759</lat>
<lng>72.4541115</lng>
</southwest>
<northeast>
<lat>23.1378156</lat>
<lng>72.7026413</lng>
</northeast>
</viewport>
<bounds>
<southwest>
<lat>22.9028759</lat>
<lng>72.4541115</lng>
</southwest>
<northeast>
<lat>23.1378156</lat>
<lng>72.7026413</lng>
</northeast>
</bounds>
</geometry>
</result>
<result>
<type>administrative_area_level_2</type>
<type>political</type>
<formatted_address>Ahmedabad, Gujarat, India</formatted_address>
<address_component>
<long_name>Ahmedabad</long_name>
<short_name>Ahmedabad</short_name>
<type>administrative_area_level_2</type>
<type>political</type>
</address_component>
<address_component>
<long_name>Gujarat</long_name>
<short_name>GJ</short_name>
<type>administrative_area_level_1</type>
<type>political</type>
</address_component>
<address_component>
<long_name>India</long_name>
<short_name>IN</short_name>
<type>country</type>
<type>political</type>
</address_component>
<geometry>
<location>
<lat>23.0395677</lat>
<lng>72.5660045</lng>
</location>
<location_type>APPROXIMATE</location_type>
<viewport>
<southwest>
<lat>22.0185745</lat>
<lng>71.5979016</lng>
</southwest>
<northeast>
<lat>23.4630890</lat>
<lng>72.8419331</lng>
</northeast>
</viewport>
<bounds>
<southwest>
<lat>22.0185745</lat>
<lng>71.5979016</lng>
</southwest>
<northeast>
<lat>23.4630890</lat>
<lng>72.8419331</lng>
</northeast>
</bounds>
</geometry>
</result>
<result>
<type>administrative_area_level_1</type>
<type>political</type>
<formatted_address>Gujarat, India</formatted_address>
<address_component>
<long_name>Gujarat</long_name>
<short_name>GJ</short_name>
<type>administrative_area_level_1</type>
<type>political</type>
</address_component>
<address_component>
<long_name>India</long_name>
<short_name>IN</short_name>
<type>country</type>
<type>political</type>
</address_component>
<geometry>
<location>
<lat>22.2586520</lat>
<lng>71.1923805</lng>
</location>
<location_type>APPROXIMATE</location_type>
<viewport>
<southwest>
<lat>20.1279540</lat>
<lng>68.1628352</lng>
</southwest>
<northeast>
<lat>24.7057090</lat>
<lng>74.4764881</lng>
</northeast>
</viewport>
<bounds>
<southwest>
<lat>20.1279540</lat>
<lng>68.1628342</lng>
</southwest>
<northeast>
<lat>24.7057090</lat>
<lng>74.4764881</lng>
</northeast>
</bounds>
</geometry>
</result>
<result>
<type>country</type>
<type>political</type>
<formatted_address>India</formatted_address>
<address_component>
<long_name>India</long_name>
<short_name>IN</short_name>
<type>country</type>
<type>political</type>
</address_component>
<geometry>
<location>
<lat>20.5936840</lat>
<lng>78.9628800</lng>
</location>
<location_type>APPROXIMATE</location_type>
<viewport>
<southwest>
<lat>6.7471389</lat>
<lng>68.1627956</lng>
</southwest>
<northeast>
<lat>35.5043404</lat>
<lng>97.3955550</lng>
</northeast>
</viewport>
<bounds>
<southwest>
<lat>6.7471389</lat>
<lng>68.1623859</lng>
</southwest>
<northeast>
<lat>35.5043404</lat>
<lng>97.3955550</lng>
</northeast>
</bounds>
</geometry>
</result>
</GeocodeResponse>

我想从 xml 中获取 long_name、地区和国家我尝试了各种帖子，但没有得到完美的答案谁能指导我，如何将这个 XML 解析成 android ？？

【问题讨论】：

选择解析器并解析您的 xml 数据。 developer.android.com/training/basics/network-ops/xml.html
有很多long_names。您希望访问哪一个？

标签： java android xml-parsing reverse-geocoding

【解决方案1】：

获得准确结果的简单方法。希望对您有所帮助！

只需将此行放在您想要地址的位置：

String Adress_final=new GeocodeAPI().execute().get();

然后添加这个，

    //calling web geocoder api to get the address

    protected class GeocodeAPI extends AsyncTask<String, String, String>
    {

        String participantURL = Config.GooglePlacesAPI+"latlng="+Lat+","+Lng+"&sensor=false";
        JSONObject json;

        @Override
        protected void onPreExecute() 
        {
            System.out.println("participantURL==>>"+participantURL);
            // Create a progressdialog mProgressDialog
            mProgressDialog = new ProgressDialog(getActivity());
            // Set progressdialog title
            mProgressDialog.setTitle("Please Wait");
            // Set progressdialog message
            mProgressDialog.setMessage("Loading Location...");
            mProgressDialog.setIndeterminate(false);
            // Show progressdialog
            mProgressDialog.show();
        }


        @Override
        protected String doInBackground(String... params) {
            JSONParser jsonParser = new JSONParser();
            System.out.println("participantURL==>>"+participantURL);
            System.out.println("latitude & Longitude=="+Lat+","+Lng);
            List<NameValuePair> parameters = new ArrayList<NameValuePair>();


            try {
                json = jsonParser.getJSONFromUrl(participantURL, parameters);
                System.out.println("********Return from JSONParser class********");
                System.out.println("json=="+json);

                if (json != null) {

                    // get lat and lng value

                    JSONObject location;

                    try {
                        //Get JSON Array called "results" and then get the 0th complete object as JSON        
                        location = json.getJSONArray("results").getJSONObject(0);
                        System.out.println("location==>>>"+location);
                        // Get the value of the attribute whose name is "formatted_string"
                        location_string = location.getString("formatted_address");
                        System.out.println("location_string==>>>"+location_string);
                        Log.d("test", "formattted address:" + location_string);
                    } catch (JSONException e1) {
                        e1.printStackTrace();
                    }

                }
                }catch (Exception error) {
                    error.getMessage();
                }


            return location_string;**

【讨论】：

【解决方案2】：

拉古南丹是对的。但是，如果您的目标是使用 Google 地图 API 获取“long_name”、位置等，您可能需要尝试以下方法来获取它。你可以得到响应是 JSON 的形式，我觉得它更有条理。你可以自己先试试网址：http://maps.google.com/maps/api/geocode/json?latlng=23.0043673,72.5411868999996&sensor=false

我一直使用以下方法，它对我有用。它可能会帮助你得到你正在尝试的东西：

您可以获取纬度和经度，然后请求 google 服务器，以使用包含有关位置坐标的各种信息的 JSON 对象进行回复。这是函数：

public JSONObject getLocationInfo( double lat, double lng) {

    HttpGet httpGet = new HttpGet("http://maps.google.com/maps/api/geocode/json?latlng="+lat+","+lng+"&sensor=false");
    HttpClient client = new DefaultHttpClient();
    HttpResponse response;
    StringBuilder stringBuilder = new StringBuilder();

    try {
        response = client.execute(httpGet);
        HttpEntity entity = response.getEntity();
        InputStream stream = entity.getContent();
        int b;
        while ((b = stream.read()) != -1) {
            stringBuilder.append((char) b);
        }
    } catch (ClientProtocolException e) {
        } catch (IOException e) {
    }

    JSONObject jsonObject = new JSONObject();
    try {
        jsonObject = new JSONObject(stringBuilder.toString());
    } catch (JSONException e) {
        e.printStackTrace();
    }
    return jsonObject;
}

现在您可以解析 JSON 以获得您想要的任何内容。例如，假设您想要完整的 formatted_address，您可以通过以下方式获得：

// get lat and lng value
JSONObject ret = getLocationInfo(lat, lng); 
JSONObject location;
String location_string;
try {
    //Get JSON Array called "results" and then get the 0th complete object as JSON        
    location = ret.getJSONArray("results").getJSONObject(0); 
    // Get the value of the attribute whose name is "formatted_string"
    location_string = location.getString("formatted_address");
    Log.d("test", "formattted address:" + location_string);
} catch (JSONException e1) {
    e1.printStackTrace();

}

如果您想了解更多关于如何从您将收到的 JSON 类型的响应中提取所需数据的信息，请参阅Android - How to parse JSONObject and JSONArrays 问题的答案。希望对你有帮助。

更新：

希望您已阅读上述问题的答案。现在，例如：如果您想获取address_components 的 JSON 数组，那么只需执行类似

的操作

JSONArray addressComp = ret.getJSONArray("results").getJSONObject(0).getJSONArray("address_components");

现在你可以得到第一个long_name如下：

String long_name1 = addressComp.getJSONObject(0).getString("long_name");

因此，请尝试将此处的模式与您收到的 JSON 响应进行比较。这将使您了解如何获取任何元素。这里，result 是 JSONARray，所以我把它作为 JSONArray。然后我取了result JSONArray 的第一个对象，其name 是address_components，而value 是另一个JSONArray。然后因为想得到第一个long_name，所以又把address_componentJSONArray的第一个对象取了，然后要求获取名称为long_name的组件的value。希望现在您对如何读取值有所了解。

P.S：我没有运行最后两行，而是按逻辑制定。希望它能让你明白。一切顺利！

【讨论】：