利用Google接口实现基站定位，google接口基站定位

利用Google接口实现基站定位，google接口基站定位

<无详细内容>

1.LocationAct.java

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 block
			e.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());
	}
}

2.权限设定

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

3.[图片] 1.jpg