android 位置定位(通过基站方式辅助定位)

一般定位都是通过gps定位器,但这个过程比较慢.这里可以通过基站方式辅助定位
代码:

    private TelephonyManager TMmanager;

    private void helpGetLocion() throws Exception
    {
        //获取服务
        TMmanager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        GsmCellLocation gcl = (GsmCellLocation) TMmanager.getCellLocation();
        //获取位置信息
        int cid = gcl.getCid();
        int lac = gcl.getLac();
        int mcc = Integer.valueOf(TMmanager.getNetworkOperator()
            .substring(0, 3));
        int mnc = Integer.valueOf(TMmanager.getNetworkOperator()
            .substring(3, 5));
        //        String[] getNumber = "";
        //        getNumber+={"cid:"+cid+"\n"};
        //create json
        JSONObject jobject = new JSONObject();
        JSONArray jarray = new JSONArray();
        JSONObject jData = new JSONObject();
        jobject.put("version", "1.1.0");
        jobject.put("host", "maps.google.com");
        jobject.put("request_address", true);
        Log.d("tracy", "mcc=" + mcc);
        if (mcc == 460)
        {
            jobject.put("addess_language", "zh_CN");
        }
        else
        {
            jobject.put("addess_language", "en_US");
        }
        jData.put("cell_id", cid);
        jData.put("location_area_code", lac);
        jData.put("mobile_country_code", mcc);
        jData.put("mobile_network_code", mnc);
        jarray.put(jData);
        jobject.put("cell_towers", jarray);

        //建立连接到服务器
        DefaultHttpClient client = new DefaultHttpClient();
        HttpPost post = new HttpPost("http://www.google.com/loc/json");
        StringEntity se = new StringEntity(jobject.toString());
        post.setEntity(se);

        HttpResponse resp = client.execute(post);
        BufferedReader br = null;
        if (resp.getStatusLine().getStatusCode() == HttpStatus.SC_OK)
        {
            Log.d("tracy", "HttpStatus.SC_OK");
            br = new BufferedReader(new InputStreamReader(resp.getEntity()
                .getContent()));
        }
        StringBuffer sb = new StringBuffer();
        String result = br.readLine();
        while (result != null)
        {
            sb.append(result);
            result = br.readLine();
        }
        //返回的数据,这个是json格式的数据,如果要解析可以网上搜下json object
        mTextView.setText(sb.toString());
    }