基站定位获取位置坐标

package cn.MyAndroid.Test;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
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.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;

public class MyLocation extends Activity {
TextView mTextView;
Button mButton;
TelephonyManager tm;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

mTextView = (TextView) findViewById(R.id.TextView01);
mButton = (Button) findViewById(R.id.Button01);
tm = (TelephonyManager) this
.getSystemService(Context.TELEPHONY_SERVICE);

mButton.setOnClickListener(new Button.OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
GsmCellLocation gcl = (GsmCellLocation) tm.getCellLocation();
int cid = gcl.getCid();
int lac = gcl.getLac();

int mcc = Integer.valueOf(tm.getNetworkOperator().substring(0,
3));
int mnc = Integer.valueOf(tm.getNetworkOperator().substring(3,
5));
try {
//组装JSON查询字符串
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);

JSONArray array = new JSONArray();
JSONObject data = new JSONObject();
data.put("cell_id", cid); // 25070
data.put("location_area_code", lac);// 4474
data.put("mobile_country_code", mcc);// 460
data.put("mobile_network_code", mnc);// 0
array.put(data);
holder.put("cell_towers", array);

// 创建连接，发送请求并接受回应
DefaultHttpClient client = new DefaultHttpClient();

HttpPost post = new HttpPost(
"http://www.google.com/loc/json");

StringEntity se = new StringEntity(holder.toString());

post.setEntity(se);
HttpResponse resp = client.execute(post);

HttpEntity entity = resp.getEntity();

BufferedReader br = new BufferedReader(
new InputStreamReader(entity.getContent()));
StringBuffer sb = new StringBuffer();
String result = br.readLine();

while (result != null) {

sb.append(result);
result = br.readLine();
}

mTextView.setText(sb.toString());
} catch (Exception e) {
// TODO: handle exception
}

}

});
}
}

注意要给Activity加入以下权限：



关于基站查询协议的话，请参考这个链接： http://code.google.com/intl/zh-CN/apis/gears/geolocation_network_protocol.html