從Json URL中讀取Lan，Long並分配lat和long來映射標記？

我是新來的機器人，我試圖從URL讀取json文件，並獲取緯度和長度，並將值賦予標記並將其顯示在地圖中，我的問題如何獲取lan，long，after閱讀json的內容？這裏是在URL JSON的URL數據 JSON數據從Json URL中讀取Lan，Long並分配lat和long來映射標記？

{"properties":{"1":{"name":"Villa For 
Sale","lat":"35.2474962142","lng":"-91.3480163353","price":"$100,000","image1":"http:\/\/wpl28.realtyna.com\/theme28\/wp-content\/uploads\/WPL\/91\/thimg_12_800x420.jpg","image2":"http:\/\/wpl28.realtyna.com\/theme28\/wp-content\/uploads\/WPL\/85\/thimg_2_800x420.jpg"},"2":{"name":"Apartment For Rent","lat":"35.9542249162","lng":"-101.21893164","price":"$40,000","image1":"ht

在android系統

我想要得到的緯度，經度和每個值assing向市場地圖

 //this method should get json data from onPostExecute(String s) 
     public void the_received_data(String received_data){ 

     } 

     class Read_JSON extends AsyncTask<String ,String ,String >{ 
     MainActivity mainActivity; 
     // class to handle reading json file 
     @Override 
     protected String doInBackground(String... params) { 
     HttpURLConnection connection =null; 
     BufferedReader data =null; 
     InputStream json_data; 
     try { 
      URL url = new URL(params[0]); 
      connection =(HttpURLConnection)url.openConnection(); 
      connection.connect(); 
      //holding the data into stream 
      json_data =connection.getInputStream(); 
      data = new BufferedReader(new InputStreamReader(json_data)); 
      StringBuffer stringBuffer = new StringBuffer(); 
      //read the data from the bufferedredaer line by line 
      String line =""; 
      while((line =data.readLine()) != null){ 
       stringBuffer.append(line); 
      } 
      return stringBuffer.toString(); 
     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
     finally{ 
      if(connection !=null){connection.disconnect();} 
      try { 
       if(data != null){ 
        data.close();} 
      } catch (IOException e) { 
       e.printStackTrace(); 
      } 
     } 
     return null; } 

     @Override 
     protected void onPostExecute(String s) { 
     super.onPostExecute(s); 
     mainActivity.the_received_data(s); 
    } 
}

來源

2017-06-29 Rech K

獲取字符串響應後，只需將其解析爲JSONObject，如下面的示例&那麼您可以獲得Latitude &經度。

JSONObject jsonObj = new JSONObject("{"name":"myName","address":"myAddress"}"); 
String my_name = jsonObj.getString("myName");

來源

2017-06-29 12:35:09 Srihari

從Json URL中讀取Lan，Long並分配lat和long來映射標記？

回答

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