android开发通过基站手机网络实现定位功能（Google实现）

package com.android.demo;

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

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
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.app.ProgressDialog;
import android.content.Context;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.telephony.gsm.GsmCellLocation;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class DemoActivity extends Activity {
	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		/** 为按钮绑定事件 */
		Button btnGetLocation = (Button) findViewById(R.id.button1);
		btnGetLocation.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				onBtnClick();
			}
		});
	}

	/** 基站信息结构体 */
	public class SCell {
		public int MCC;
		public int MNC;
		public int LAC;
		public int CID;
	}

	/** 经纬度信息结构体 */
	public class SItude {
		public String latitude;
		public String longitude;
	}

	/** 按钮点击回调函数 */
	private void onBtnClick() {
		/** 弹出一个等待状态的框 */
	    ProgressDialog mProgressDialog = new ProgressDialog(this);
	    mProgressDialog.setMessage("正在获取中...");
	    mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
	    mProgressDialog.show();
	     
	    try {
	        /** 获取基站数据 */
	        SCell cell = getCellInfo();
	         
	        /** 根据基站数据获取经纬度 */
	        SItude itude = getItude(cell);
	         
	        /** 获取地理位置 */
	        String location = getLocation(itude);
	         
	        /** 显示结果 */
	        showResult(cell, location);
	         
	        /** 关闭对话框 */
	        mProgressDialog.dismiss();
	    }catch (Exception e) {
	        /** 关闭对话框 */
	        mProgressDialog.dismiss();
	        /** 显示错误 */
	        TextView cellText = (TextView)findViewById(R.id.cellText);
	        cellText.setText(e.getMessage());
	    }
	}

	/** 获取基站信息 */
	private SCell getCellInfo() throws Exception {
	    SCell cell = new SCell();
	 
	    /** 调用API获取基站信息 */
	    TelephonyManager mTelNet = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
	    GsmCellLocation location = (GsmCellLocation) mTelNet.getCellLocation();
	    if (location == null)
	        throw new Exception("获取基站信息失败");
	 
	    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();
	 
	    /** 将获得的数据放到结构体中 */
	    cell.MCC = mcc;
	    cell.MNC = mnc;
	    cell.LAC = lac;
	    cell.CID = cid;
	 
	    return cell;
	}

	/** 获取经纬度 */
	private SItude getItude(SCell cell) throws Exception {
	    SItude itude = new SItude();
	 
	    /** 采用Android默认的HttpClient */
	    HttpClient client = new DefaultHttpClient();
	    /** 采用POST方法 */
	    HttpPost post = new HttpPost("http://www.google.com/loc/json");
	    try {
	        /** 构造POST的JSON数据 */
	        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);
	 
	        /** 发出POST数据并获取返回数据 */
	        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);
	        }
	 
	        /** 解析返回的JSON数据获得经纬度 */
	        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("获取经纬度出现错误:"+e.getMessage());
	    } finally{
	        post.abort();
	        client = null;
	    }
	     
	    return itude;
	}

	/** 获取地理位置 */
	private String getLocation(SItude itude) throws Exception {
	    String resultString = "";
	 
	    /** 这里采用get方法，直接将参数加到URL上 */
	    String urlString = String.format("http://maps.google.cn/maps/geo?key=abcdefg&q=%s,%s", itude.latitude, itude.longitude);
	    Log.i("URL", urlString);
	 
	    /** 新建HttpClient */
	    HttpClient client = new DefaultHttpClient();
	    /** 采用GET方法 */
	    HttpGet get = new HttpGet(urlString);
	    try {
	        /** 发起GET请求并获得返回数据 */
	        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();
	 
	        /** 解析JSON数据，获得物理地址 */
	        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("获取物理位置出现错误:" + e.getMessage());
	    } finally {
	        get.abort();
	        client = null;
	    }
	 
	    return resultString;
	}

	/** 显示结果 */
	private void showResult(SCell cell, String location) {
	    TextView cellText = (TextView) findViewById(R.id.cellText);
	    cellText.setText(String.format("基站信息：mcc:%d, mnc:%d, lac:%d, cid:%d",
	            cell.MCC, cell.MNC, cell.LAC, cell.CID));
	 
	    TextView locationText = (TextView) findViewById(R.id.lacationText);
	    locationText.setText("物理位置：" + location);
	}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
 
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Please click the button below to get your location" />
 
    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Click Me" />
 
    <TextView
        android:id="@+id/cellText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="" />
 
    <TextView
        android:id="@+id/lacationText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="" />
 
</LinearLayout>

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