android 基站定位

         這裏給大家分享下基站定位的實現，基站定位首先要通過TelephonyManager得到手機的信號信息，比如基站的國家編碼，小區id等......得到這些後需要向google提供的接口提交這些參數，然後就會返回基站的相關信息。

廢話不多說直接上代碼吧：

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.telephony.NeighboringCellInfo;
import android.telephony.TelephonyManager;
import android.telephony.cdma.CdmaCellLocation;
import android.telephony.gsm.GsmCellLocation;
import android.util.Log;

/**
 * @author yangzhiqiang
 * 
 */
public class CellIdInfoManager implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 5481154371450408380L;

	private Context context;

	public CellIdInfoManager(Context context) {
		super();
		this.context = context;
	}

	public List<CellInfo> getCellInfo() {
		List<CellInfo> listInfo = new ArrayList<CellInfo>();

		int countryCode;
		int networkCode;
		int areaCode;
		CellInfo info = new CellInfo();
		GsmCellLocation gsm = null;

		TelephonyManager manager = (TelephonyManager) context
				.getSystemService(Context.TELEPHONY_SERVICE);
		if (manager.getPhoneType() == TelephonyManager.PHONE_TYPE_GSM) {
			gsm = (GsmCellLocation) manager.getCellLocation();
			if (gsm == null) {
				return null;
			}
			if (manager.getNetworkOperator() == null
					|| manager.getNetworkOperator().length() == 0) {
				return null;
			}
			countryCode = Integer.parseInt(manager.getNetworkOperator()
					.substring(0, 3));
			networkCode = Integer.parseInt(manager.getNetworkOperator()
					.substring(3, 5));
			areaCode = gsm.getLac();

			info.cellId = gsm.getCid();
			info.mobileCountryCode = countryCode;
			info.mobileNetworkCode = networkCode;
			info.locationAreaCode = areaCode;
			info.radio_type = "gsm";

			listInfo.add(info);

			List<NeighboringCellInfo> list = manager.getNeighboringCellInfo();
			for (NeighboringCellInfo i : list) {
				CellInfo ci = new CellInfo();
				ci.cellId = i.getCid();
				ci.mobileCountryCode = countryCode;
				ci.mobileNetworkCode = networkCode;
				ci.locationAreaCode = areaCode;
				ci.radio_type = "gsm";
				listInfo.add(ci);
			}
		} else if (manager.getPhoneType() == TelephonyManager.PHONE_TYPE_CDMA) {
			CdmaCellLocation cdma = (CdmaCellLocation) manager
					.getCellLocation();
			if (cdma == null) {
				return null;
			}
			if (manager.getNetworkOperator() == null
					|| manager.getNetworkOperator().length() == 0) {
				return null;
			}
			Log.v("TAG", "CDMA");
			info.cellId = cdma.getBaseStationId();
			info.mobileCountryCode = Integer.parseInt(manager
					.getNetworkOperator());
			info.mobileNetworkCode = cdma.getSystemId();
			info.locationAreaCode = cdma.getNetworkId();
			info.radio_type = "cdma";
			listInfo.add(info);
		}
		return listInfo;
	}

	public class CellInfo {

		// 基站編號
		public int cellId;
		// 國家代碼
		public int mobileCountryCode;
		// 網絡代碼
		public int mobileNetworkCode;
		// 區域代碼
		public int locationAreaCode;

		public String radio_type;

		public CellInfo() {
			super();
		}

	}
}

上面是得到手機信號的信息，下面是將這些信息發送到google服務器並解析結果：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.Serializable;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
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.location.Location;
import android.util.Log;

import com.metarnet.gps.CellIdInfoManager.CellInfo;

/**
 * @author Administrator
 * 
 */
public class NetworkLocationManager implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1185788569820321281L;

	public static Location getBaseStationLocation(List<CellInfo> cellID) {
		if (cellID == null) {
			Log.i("TAG", "cellId is null.");
			return null;
		}
		DefaultHttpClient client = new DefaultHttpClient();
		HttpPost post = new HttpPost("http://www.google.com/loc/json");
		JSONObject holder = new JSONObject();
		try {
			CellInfo info = cellID.get(0);
			holder.put("version", "1.1.0");
			holder.put("host", "maps.google.com");
			holder.put("home_mobile_country_code", info.mobileCountryCode);
			holder.put("home_mobile_network_code", info.mobileNetworkCode);
			holder.put("request_address", true);
			holder.put("radio_type", info.radio_type);
			if ("460".equals(info.mobileCountryCode)) {
				holder.put("address_language", "zh_CN");
			} else {
				holder.put("address_language", "en_US");
			}

			JSONObject data, current_data;
			JSONArray array = new JSONArray();

			current_data = new JSONObject();
			current_data.put("cell_id", info.cellId);
			current_data.put("location_area_code", info.locationAreaCode);
			current_data.put("mobile_country_code", info.mobileCountryCode);
			current_data.put("mobile_network_code", info.mobileNetworkCode);
			current_data.put("age", 0);
			array.put(current_data);

			if (cellID.size() > 2) {
				for (int i = 1; i < cellID.size(); i++) {
					data = new JSONObject();
					data.put("cell_id", info.cellId);
					data.put("location_area_code", info.locationAreaCode);
					data.put("mobile_country_code", info.mobileCountryCode);
					data.put("mobile_network_code", info.mobileNetworkCode);
					data.put("age", 0);
					array.put(data);
				}
			}
			holder.put("cell_towers", array);

			StringEntity se = new StringEntity(holder.toString());
			post.setEntity(se);
			HttpResponse resp = client.execute(post);
			int state = resp.getStatusLine().getStatusCode();
			if (state == HttpStatus.SC_OK) {
				HttpEntity entity = resp.getEntity();
				if (entity != null) {
					BufferedReader br = new BufferedReader(
							new InputStreamReader(entity.getContent()));
					StringBuffer sb = new StringBuffer();
					String resute = "";
					while ((resute = br.readLine()) != null) {
						sb.append(resute);
					}
					br.close();

					data = new JSONObject(sb.toString());
					data = (JSONObject) data.get("location");

					Location loc = new Location(
							android.location.LocationManager.NETWORK_PROVIDER);
					loc.setLatitude((Double) data.get("latitude"));
					loc.setLongitude((Double) data.get("longitude"));
					loc.setAccuracy(Float.parseFloat(data.get("accuracy")
							.toString()));
					loc.setTime(System.currentTimeMillis());
					return loc;
				} else {
					return null;
				}
			} else {
				Log.v("TAG", state + "");
				return null;
			}

		} catch (Exception e) {
			Log.e("TAG", e.getMessage());
			return null;
		}
	}
}