Android通過基站擷取地理位置

 /**

* 擷取基站資訊 *  @return * @throws  Exception */ public SCell getCellInfo() throws Exception{ SCell cell  = new SCell(); TelephonyManager  mTelNet = (TelephonyManager)  getSystemService(Context.TELEPHONY_SERVICE); GsmCellLocation  location = (GsmCellLocation) mTelNet.getCellLocation(); if  (location == null) throw new  Exception("基站資訊為空白"); String  operator = mTelNet.getNetworkOperator(); int mcc =  Integer.parseInt(operator.substring(0, 3)); int mnc =  Integer.parseInt(operator.substring(3)); int cid =  location.getCid(); int lac =  location.getLac(); cell.MCC =  mcc; cell.MNC =  mnc; cell.LAC =  lac; cell.CID =  cid; return  cell; }
/** * 通過基站資訊擷取經緯度 * @param  cell *  @return * @throws  Exception */ private SItude getItude(SCell cell) throws Exception  { SItude  itude = new SItude();
HttpClient  client = new DefaultHttpClient(); HttpPost  post = new HttpPost("http://www.google.com/loc/json"); try  { JSONObject  holder = new JSONObject(); holder.put("version",  "1.1.0"); holder.put("host",  "maps.google.com"); holder.put("address_language",  "zh_CN"); holder.put("request_address",  true); holder.put("radio_type",  "gsm"); holder.put("carrier",  "HTC");
JSONObject  tower = new JSONObject(); tower.put("mobile_country_code",  cell.MCC); tower.put("mobile_network_code",  cell.MNC); tower.put("cell_id",  cell.CID); tower.put("location_area_code",  cell.LAC);
JSONArray  towerarray = new JSONArray(); towerarray.put(tower); holder.put("cell_towers",  towerarray);
StringEntity  query = new StringEntity(holder.toString()); post.setEntity(query);
HttpResponse  response = client.execute(post); HttpEntity  entity = response.getEntity(); BufferedReader  buffReader = new BufferedReader( new  InputStreamReader(entity.getContent())); StringBuffer  strBuff = new StringBuffer(); String  result = null; while  ((result = buffReader.readLine()) != null) { strBuff.append(result); } JSONObject  json = new JSONObject(strBuff.toString()); JSONObject  subjosn = new JSONObject(json.getString("location"));
itude.latitude  = subjosn.getString("latitude"); itude.longitude  = subjosn.getString("longitude");
Log.i("Itude",  itude.latitude + itude.longitude);
} catch  (Exception e) { Log.e(e.getMessage(),  e.toString()); throw new  Exception("" + e.getMessage()); } finally  { post.abort(); client =  null; }
return  itude; }
/** * 通過經緯度到Google map上擷取地理位置 * @param  itude *  @return * @throws  Exception */ private String getLocation(SItude itude) throws  Exception { String  resultString = ""; String  urlString = String.format( "http://maps.google.cn/maps/geo?key=abcdefg&q=%s,%s", itude.latitude,  itude.longitude); Log.i("URL",  urlString); HttpClient  client = new DefaultHttpClient(); HttpGet get  = new HttpGet(urlString); try  { HttpResponse  response = client.execute(get); HttpEntity  entity = response.getEntity(); BufferedReader  buffReader = new BufferedReader( new  InputStreamReader(entity.getContent())); StringBuffer  strBuff = new StringBuffer(); String  result = null; while  ((result = buffReader.readLine()) != null) { strBuff.append(result); } resultString  = strBuff.toString(); if  (resultString != null && resultString.length() > 0)  { JSONObject  jsonobject = new JSONObject(resultString); JSONArray  jsonArray = new JSONArray(jsonobject.get("Placemark") .toString()); resultString  = ""; for (int i  = 0; i < jsonArray.length(); i++) { resultString  = jsonArray.getJSONObject(i).getString( "address"); } } } catch  (Exception e) { throw new  Exception("sd:" + e.getMessage()); } finally  { get.abort(); client =  null; } return  resultString; }
public class SCell { public int  MCC; public int  MNC; public int  LAC; public int  CID; }
public class SItude { public  String latitude; public  String longitude; }