利用Google接口实现基站定位

package lab.sodino.location;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.DefaultHttpClient;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.telephony.TelephonyManager;import android.telephony.gsm.GsmCellLocation;import android.view.View;import android.widget.Button;import android.widget.TextView;/** * Google定位的实现.<br/> * Geolocation的详细信息请参见：<br/> * <a * href="http://code.google.com/apis/gears/geolocation_network_protocol.html"> * http://code.google.com/apis/gears/geolocation_network_protocol.html</a> */public class LocationAct extends Activity {private TextView txtInfo;public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);Button btn = (Button) findViewById(R.id.btnStart);txtInfo = (TextView) findViewById(R.id.txtInfo);btn.setOnClickListener(new Button.OnClickListener() {public void onClick(View view) {getLocation();}});}private void getLocation() {TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);GsmCellLocation gsmCell = (GsmCellLocation) tm.getCellLocation();int cid = gsmCell.getCid();int lac = gsmCell.getLac();String netOperator = tm.getNetworkOperator();int mcc = Integer.valueOf(netOperator.substring(0, 3));int mnc = Integer.valueOf(netOperator.substring(3, 5));JSONObject holder = new JSONObject();JSONArray array = new JSONArray();JSONObject data = new JSONObject();try {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");data.put("cell_id", cid);data.put("location_area_code", lac);data.put("mobile_countyr_code", mcc);data.put("mobile_network_code", mnc);array.put(data);holder.put("cell_towers", array);} catch (JSONException e) {e.printStackTrace();}DefaultHttpClient client = new DefaultHttpClient();HttpPost httpPost = new HttpPost("http://www.google.com/loc/json");StringEntity stringEntity = null;try {stringEntity = new StringEntity(holder.toString());} catch (UnsupportedEncodingException e) {e.printStackTrace();}httpPost.setEntity(stringEntity);HttpResponse httpResponse = null;try {httpResponse = client.execute(httpPost);} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}HttpEntity httpEntity = httpResponse.getEntity();InputStream is = null;try {is = httpEntity.getContent();} catch (IllegalStateException e) {e.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}InputStreamReader isr = new InputStreamReader(is);BufferedReader reader = new BufferedReader(isr);StringBuffer stringBuffer = new StringBuffer();try {String result = "";while ((result = reader.readLine()) != null) {stringBuffer.append(result);}} catch (IOException e) {e.printStackTrace();}System.out.println("[sodino]" + stringBuffer.toString());txtInfo.setText(stringBuffer.toString());}}

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission> <uses-permission android:name="android.permission.INTERNET"></uses-permission>