真实可行的android 基站定位代码

来自：http://blog.csdn.net/swqqcs/article/details/7064532

大部分国产的Android定制机里不支持最简单实用的基站和WIFI定位，只能使用速度慢而耗电的GPS定位，但OPhone和华为/中兴生产的一些Android定制机却占据了一定的市场，因此导致了很多使用了定位技术的Andorid应用挺尴尬的。

 

         不过其实只要明白了基站/WIFI定位的原理，自己实现基站/WIFI定位其实不难。基站定位一般有几种，第一种是利用手机附近的三个基站进行三角定位，由于每个基站的位置是固定的，利用电磁波在这三个基站间中转所需要时间来算出手机所在的坐标；第二种则是利用获取最近的基站的信息，其中包括基站id，location area code、mobile country code、mobile network code和信号强度，将这些数据发送到google的定位web服务里，就能拿到当前所在的位置信息，误差一般在几十米到几百米之内。其中信号强度这个数据很重要，网上很多所谓的手动通过基站和WIFI信息定位的方法误差大都是因为没使用信号强度而导致误差过大。高德也自己做了一个基站库，具体可以google搜索一下。

 

         现在在一些大中型城市里，WIFI已经普及，有私人或企业的WIFI，亦有中国电信的WIFI，通过WIFI信息进行定位，并不需要真正连接上指定的WIFI路由器，只需要探测到有WIFI存在即可，因此当手机使用的不是GSM制式（因为google的基站库里并没在保存太多的CDMA基站）的时候，也可以使用WIFI进行定位，原理也和基站定位一样，必须要拿到WIFI路由器的SSID和信号强度。

 

         由于有些用户默认是将WIFI关闭的，通过API开启WIFI硬件并进行搜索附近的WIFI路由器需要一段时间，怎样才能将手机基站定位和WIFI定位完美结合起来呢，Android提供了一种很好的机制，就是Handler和Looper，Handler和Looper一般用于跨线程传递数据，但当在单线程里使用时，就变成了一个先进先出的消息泵。利用这个消息泵进行调度，就可以将基站定位和WIFI定位完美结合。以下是相关的代码：

 CellInfoManager

 import java.lang.reflect.Method;
 import java.util.Iterator;
 import java.util.List;

 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;

 import android.content.Context;
 import android.telephony.CellLocation;
 import android.telephony.NeighboringCellInfo;
 import android.telephony.PhoneStateListener;
 import android.telephony.TelephonyManager;
 import android.telephony.gsm.GsmCellLocation;
 import android.util.Log;

 public class CellInfoManager {
        private int asu;
        private int bid;
        private int cid;
        private boolean isCdma;
        private boolean isGsm;
        private int lac;
        private int lat;
        private final PhoneStateListener listener;
        private int lng;
        private int mcc;
        private int mnc;
        private int nid;
        private int sid;
        private TelephonyManager tel;
        private boolean valid;
        private Context context;

        public CellInfoManager(Context paramContext) {
               this.listener = new CellInfoListener(this);
               tel = (TelephonyManager) paramContext.getSystemService(Context.TELEPHONY_SERVICE);
               this.tel.listen(this.listener, PhoneStateListener.LISTEN_CELL_LOCATION | PhoneStateListener.LISTEN_SIGNAL_STRENGTH);
               context = paramContext;
        }

        public static int dBm(int i) {
               int j;
               if (i >= 0 && i <= 31)
                      j = i * 2 + -113;
               else
                      j = 0;
               return j;
        }

        public int asu() {
               return this.asu;
        }

        public int bid() {
               if (!this.valid)
                      update();
               return this.bid;
        }

        public JSONObject cdmaInfo() {
               if (!isCdma()) {
                      return null;
               }
               JSONObject jsonObject = new JSONObject();
               try {
                      jsonObject.put("bid", bid());
                      jsonObject.put("sid", sid());
                      jsonObject.put("nid", nid());
                      jsonObject.put("lat", lat());
                      jsonObject.put("lng", lng());
               } catch (JSONException ex) {
                      jsonObject = null;
                      Log.e("CellInfoManager", ex.getMessage());
               }
               return jsonObject;
        }

        public JSONArray cellTowers() {
               JSONArray jsonarray = new JSONArray();

               int lat;
               int mcc;
               int mnc;
               int aryCell[] = dumpCells();
               lat = lac();
               mcc = mcc();
               mnc = mnc();
               if (aryCell == null || aryCell.length < 2) {
                      aryCell = new int[2];
                      aryCell[0] = cid;
                      aryCell[1] = -60;
               }
               for (int i = 0; i < aryCell.length; i += 2) {
                      try {
                             int j2 = dBm(i + 1);
                             JSONObject jsonobject = new JSONObject();
                             jsonobject.put("cell_id", aryCell[i]);
                             jsonobject.put("location_area_code", lat);
                             jsonobject.put("mobile_country_code", mcc);
                             jsonobject.put("mobile_network_code", mnc);
                             jsonobject.put("signal_strength", j2);
                             jsonobject.put("age", 0);
                             jsonarray.put(jsonobject);
                      } catch (Exception ex) {
                             ex.printStackTrace();
                             Log.e("CellInfoManager", ex.getMessage());
                      }
               }
               if (isCdma())
                      jsonarray = new JSONArray();
               return jsonarray;

        }

        public int cid() {
               if (!this.valid)
                      update();
               return this.cid;
        }

        public int[] dumpCells() {
               int[] aryCells;
               if (cid() == 0) {
                      aryCells = new int[0];
                      return aryCells;
               }

               List lsCellInfo = this.tel.getNeighboringCellInfo();
               if (lsCellInfo == null || lsCellInfo.size() == 0) {
                      aryCells = new int[1];
                      int i = cid();
                      aryCells[0] = i;
                      return aryCells;
               }
               int[] arrayOfInt1 = new int[lsCellInfo.size() * 2 + 2];
               int j = 0 + 1;
               int k = cid();
               arrayOfInt1[0] = k;
               int m = j + 1;
               int n = asu();
               arrayOfInt1[j] = n;
               Iterator iter = lsCellInfo.iterator();
               while (true) {
                      if (!iter.hasNext()) {
                             break;
                      }
                      NeighboringCellInfo localNeighboringCellInfo = (NeighboringCellInfo) iter.next();
                      int i2 = localNeighboringCellInfo.getCid();
                      if ((i2 <= 0) || (i2 == 65535))
                             continue;
                      int i3 = m + 1;
                      arrayOfInt1[m] = i2;
                      m = i3 + 1;
                      int i4 = localNeighboringCellInfo.getRssi();
                      arrayOfInt1[i3] = i4;
               }
               int[] arrayOfInt2 = new int[m];
               System.arraycopy(arrayOfInt1, 0, arrayOfInt2, 0, m);
               aryCells = arrayOfInt2;
               return aryCells;

        }

        public JSONObject gsmInfo() {
               if (!isGsm()) {
                      return null;
               }
               JSONObject localObject = null;
               while (true) {
                      try {
                             JSONObject localJSONObject1 = new JSONObject();
                             String str1 = this.tel.getNetworkOperatorName();
                             localJSONObject1.put("operator", str1);
                             String str2 = this.tel.getNetworkOperator();
                             if ((str2.length() == 5) || (str2.length() == 6)) {
                                    String str3 = str2.substring(0, 3);
                                    String str4 = str2.substring(3, str2.length());
                                    localJSONObject1.put("mcc", str3);
                                    localJSONObject1.put("mnc", str4);
                             }
                             localJSONObject1.put("lac", lac());
                             int[] arrayOfInt = dumpCells();
                             JSONArray localJSONArray1 = new JSONArray();
                             int k = 0;
                             int m = arrayOfInt.length / 2;
                             while (true) {
                                    if (k >= m) {
                                           localJSONObject1.put("cells", localJSONArray1);
                                           localObject = localJSONObject1;
                                           break;
                                    }
                                    int n = k * 2;
                                    int i1 = arrayOfInt[n];
                                    int i2 = k * 2 + 1;
                                    int i3 = arrayOfInt[i2];
                                    JSONObject localJSONObject7 = new JSONObject();
                                    localJSONObject7.put("cid", i1);
                                    localJSONObject7.put("asu", i3);
                                    localJSONArray1.put(localJSONObject7);
                                    k += 1;
                             }
                      } catch (JSONException localJSONException) {
                             localObject = null;
                      }
               }
        }

        public boolean isCdma() {
               if (!this.valid)
                      update();
               return this.isCdma;
        }

        public boolean isGsm() {
               if (!this.valid)
                      update();
               return this.isGsm;
        }

        public int lac() {
               if (!this.valid)
                      update();
               return this.lac;
        }

        public int lat() {
               if (!this.valid)
                      update();
               return this.lat;
        }

        public int lng() {
               if (!this.valid)
                      update();
               return this.lng;
        }

        public int mcc() {
               if (!this.valid)
                      update();
               return this.mcc;
        }

        public int mnc() {
               if (!this.valid)
                      update();
               return this.mnc;
        }

        public int nid() {
               if (!this.valid)
                      update();
               return this.nid;
        }

        public float score() {
               float f1 = 0f;
               int[] aryCells = null;
               int i = 0;
               float f2 = 0f;
               if (isCdma()) {
                      f2 = 1065353216;
                      return f2;
               }
               if (isGsm()) {
                      f1 = 0.0F;
                      aryCells = dumpCells();
                      int j = aryCells.length;
                      if (i >= j)
                             f2 = f1;
               }
               if(i <=0 ) {
                      return 1065353216;
               }
               int m = aryCells[i];
               for (i = 0; i < m; i++) {
                      if ((m < 0) || (m > 31))
                             f1 += 0.5F;
                      else
                             f1 += 1.0F;
               }
               f2 = f1;

               return f2;
        }

        public int sid() {
               if (!this.valid)
                      update();
               return this.sid;
        }

        public void update() {
               this.isGsm = false;
               this.isCdma = false;
               this.cid = 0;
               this.lac = 0;
               this.mcc = 0;
               this.mnc = 0;
               CellLocation cellLocation = this.tel.getCellLocation();
               int nPhoneType = this.tel.getPhoneType();
               if (nPhoneType == 1 && cellLocation instanceof GsmCellLocation) {
                      this.isGsm = true;
                      GsmCellLocation gsmCellLocation = (GsmCellLocation) cellLocation;
                      int nGSMCID = gsmCellLocation.getCid();
                      if (nGSMCID > 0) {
                             if (nGSMCID != 65535) {
                                    this.cid = nGSMCID;
                                    this.lac = gsmCellLocation.getLac();
                             }
                      }
               }
               try {
                      String strNetworkOperator = this.tel.getNetworkOperator();
                      int nNetworkOperatorLength = strNetworkOperator.length();
                      if (nNetworkOperatorLength != 5) {
                             if (nNetworkOperatorLength != 6)
                                    ;
                      } else {
                             this.mcc = Integer.parseInt(strNetworkOperator.substring(0, 3));
                             this.mnc = Integer.parseInt(strNetworkOperator.substring(3, nNetworkOperatorLength));
                      }
                      if (this.tel.getPhoneType() == 2) {
                             this.valid = true;
                             Class clsCellLocation = cellLocation.getClass();
                             Class[] aryClass = new Class[0];
                             Method localMethod1 = clsCellLocation.getMethod("getBaseStationId", aryClass);
                             Method localMethod2 = clsCellLocation.getMethod("getSystemId", aryClass);
                             Method localMethod3 = clsCellLocation.getMethod("getNetworkId", aryClass);
                             Object[] aryDummy = new Object[0];
                             this.bid = ((Integer) localMethod1.invoke(cellLocation, aryDummy)).intValue();
                             this.sid = ((Integer) localMethod2.invoke(cellLocation, aryDummy)).intValue();
                             this.nid = ((Integer) localMethod3.invoke(cellLocation, aryDummy)).intValue();
                             Method localMethod7 = clsCellLocation.getMethod("getBaseStationLatitude", aryClass);
                             Method localMethod8 = clsCellLocation.getMethod("getBaseStationLongitude", aryClass);
                             this.lat = ((Integer) localMethod7.invoke(cellLocation, aryDummy)).intValue();
                             this.lng = ((Integer) localMethod8.invoke(cellLocation, aryDummy)).intValue();
                             this.isCdma = true;
                      }
               } catch (Exception ex) {
                      Log.e("CellInfoManager", ex.getMessage());
               }
        }

        class CellInfoListener extends PhoneStateListener {
               CellInfoListener(CellInfoManager manager) {

               }

               public void onCellLocationChanged(CellLocation paramCellLocation) {
                      CellInfoManager.this.valid = false;
               }

               public void onSignalStrengthChanged(int paramInt) {
                      CellInfoManager.this.asu = paramInt;
               }
        }
 }

 WifiInfoManager

 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;

 import org.json.JSONArray;
 import org.json.JSONObject;

 import android.content.Context;
 import android.net.wifi.ScanResult;
 import android.net.wifi.WifiManager;
 import android.util.Log;

 public class WifiInfoManager {
        private WifiManager wifiManager;

        public WifiInfoManager(Context paramContext) {
               this.wifiManager = (WifiManager) paramContext.getSystemService(Context.WIFI_SERVICE);
        }

        public List dump() {
               if (!this.wifiManager.isWifiEnabled()) {
                      return new ArrayList();
               }
               android.net.wifi.WifiInfo wifiConnection = this.wifiManager.getConnectionInfo();
               WifiInfo currentWIFI = null;
               if (wifiConnection != null) {
                      String s = wifiConnection.getBSSID();
                      int i = wifiConnection.getRssi();
                      String s1 = wifiConnection.getSSID();
                      currentWIFI = new WifiInfo(s, i, s1);

               }
               ArrayList lsAllWIFI = new ArrayList();
               if (currentWIFI != null) {
                      lsAllWIFI.add(currentWIFI);
               }
               List lsScanResult = this.wifiManager.getScanResults();
               for (ScanResult result : lsScanResult) {
                      WifiInfo scanWIFI = new WifiInfo(result);
                      if (!scanWIFI.equals(currentWIFI))
                             lsAllWIFI.add(scanWIFI);
               }
               return lsAllWIFI;
        }

        public boolean isWifiEnabled() {
               return this.wifiManager.isWifiEnabled();
        }

        public JSONArray wifiInfo() {
               JSONArray jsonArray = new JSONArray();

               for (WifiInfo wifi : dump()) {
                      JSONObject localJSONObject = wifi.info();
                      jsonArray.put(localJSONObject);
               }
               return jsonArray;
        }

        public WifiManager wifiManager() {
               return this.wifiManager;
        }

        public JSONArray wifiTowers() {
               JSONArray jsonArray = new JSONArray();
               try {
                      Iterator localObject = dump().iterator();
                      while (true) {
                             if (!(localObject).hasNext()) {
                                    return jsonArray;
                             }
                             jsonArray.put(localObject.next().wifi_tower());
                      }
               } catch (Exception localException) {
                      Log.e("location", localException.getMessage());
               }
               return jsonArray;
        }

        public class WifiInfo implements Comparable {
               public int compareTo(WifiInfo wifiinfo) {
                      int i = wifiinfo.dBm;
                      int j = dBm;
                      return i - j;
               }

               public boolean equals(Object obj) {
                      boolean flag = false;
                      if (obj == this) {
                             flag = true;
                             return flag;
                      } else {
                             if (obj instanceof WifiInfo) {
                                    WifiInfo wifiinfo = (WifiInfo) obj;
                                    int i = wifiinfo.dBm;
                                    int j = dBm;
                                    if (i == j) {
                                           String s = wifiinfo.bssid;
                                           String s1 = bssid;
                                           if (s.equals(s1)) {
                                                  flag = true;
                                                  return flag;
                                           }
                                    }
                                    flag = false;
                             } else {
                                    flag = false;
                             }
                      }
                      return flag;
               }

               public int hashCode() {
                      int i = dBm;
                      int j = bssid.hashCode();
                      return i ^ j;
               }

               public JSONObject info() {
                      JSONObject jsonobject = new JSONObject();
                      try {
                             String s = bssid;
                             jsonobject.put("mac", s);
                             String s1 = ssid;
                             jsonobject.put("ssid", s1);
                             int i = dBm;
                             jsonobject.put("dbm", i);
                      } catch (Exception ex) {

                      }
                      return jsonobject;
               }

               public JSONObject wifi_tower() {
                      JSONObject jsonobject = new JSONObject();
                      try {

                             String s = bssid;
                             jsonobject.put("mac_address", s);
                             int i = dBm;
                             jsonobject.put("signal_strength", i);
                             String s1 = ssid;
                             jsonobject.put("ssid", s1);
                             jsonobject.put("age", 0);
                      } catch (Exception ex) {

                      }
                      return jsonobject;
               }

               public final String bssid;
               public final int dBm;
               public final String ssid;

               public WifiInfo(ScanResult scanresult) {
                      String s = scanresult.BSSID;
                      bssid = s;
                      int i = scanresult.level;
                      dBm = i;
                      String s1 = scanresult.SSID;
                      ssid = s1;
               }

               public WifiInfo(String s, int i, String s1) {
                      bssid = s;
                      dBm = i;
                      ssid = s1;
               }

        }
 }

 CellLocationManager

 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;

 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.apache.http.util.EntityUtils;
 import org.json.JSONArray;
 import org.json.JSONObject;

 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.net.wifi.WifiManager;
 import android.os.Handler;
 import android.os.Message;
 import android.telephony.CellLocation;
 import android.util.Log;
 import android.widget.Toast;

 import com.google.android.photostream.UserTask;

 public abstract class CellLocationManager {
        public static int CHECK_INTERVAL = 15000;
        public static boolean ENABLE_WIFI = true;
        private static boolean IS_DEBUG = false;
        private static final int STATE_COLLECTING = 2;
        private static final int STATE_IDLE = 0;
        private static final int STATE_READY = 1;
        private static final int STATE_SENDING = 3;
        private static final int MESSAGE_INITIALIZE = 1;
        private static final int MESSAGE_COLLECTING_CELL = 2;
        private static final int MESSAGE_COLLECTING_WIFI = 5;
        private static final int MESSAGE_BEFORE_FINISH = 10;
        private int accuracy;
        private int bid;
        private CellInfoManager cellInfoManager;
        private Context context;
        private boolean disableWifiAfterScan;
        private int[] aryGsmCells;
        private double latitude;
        private double longitude;
        private MyLooper looper;
        private boolean paused;
        private final BroadcastReceiver receiver;
        private long startScanTimestamp;
        private int state;
        private Task task;
        private long timestamp;
        private boolean waiting4WifiEnable;
        private WifiInfoManager wifiManager;

        public CellLocationManager(Context context, CellInfoManager cellinfomanager, WifiInfoManager wifiinfomanager) {
               receiver = new CellLocationManagerBroadcastReceiver();
               this.context = context.getApplicationContext();
               cellInfoManager = cellinfomanager;
               wifiManager = wifiinfomanager;
        }

        private void debug(Object paramObject) {
               if (IS_DEBUG) {
                      System.out.println(paramObject);
                      String str = String.valueOf(paramObject);
                      Toast.makeText(this.context, str, Toast.LENGTH_SHORT).show();
               }
        }

        public int accuracy() {
               return this.accuracy;
        }

        public double latitude() {
               return this.latitude;
        }

        public double longitude() {
               return this.longitude;
        }

        public abstract void onLocationChanged();

        public void pause() {
               if (state > 0 && !paused) {
                      looper.removeMessages(MESSAGE_BEFORE_FINISH);
                      paused = true;
               }
        }

        public void requestUpdate() {
               if (state != STATE_READY) {
                      return;
               }
               boolean bStartScanSuccessful = false;
               CellLocation.requestLocationUpdate();
               state = STATE_COLLECTING;
               looper.sendEmptyMessage(MESSAGE_INITIALIZE);
               if (wifiManager.wifiManager().isWifiEnabled()) {
                      bStartScanSuccessful = wifiManager.wifiManager().startScan();
                      waiting4WifiEnable = false;
               } else {
                      startScanTimestamp = System.currentTimeMillis();
                      if (!ENABLE_WIFI || !wifiManager.wifiManager().setWifiEnabled(true)) {
                             int nDelay = 0;

                             if (!bStartScanSuccessful)
                                    nDelay = 8000;
                             looper.sendEmptyMessageDelayed(MESSAGE_COLLECTING_WIFI, nDelay);
                             debug("CELL UPDATE");
                      } else {
                             waiting4WifiEnable = true;
                      }
               }
        }

        public void resume() {
               if (state > 0 && paused) {
                      paused = false;
                      looper.removeMessages(MESSAGE_BEFORE_FINISH);
                      looper.sendEmptyMessage(MESSAGE_BEFORE_FINISH);
               }
        }

        public void start() {
               if (state <= STATE_IDLE) {
                      Log.i("CellLocationManager", "Starting...");
                      context.registerReceiver(receiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
                      context.registerReceiver(receiver, new IntentFilter(WifiManager.WIFI_STATE_CHANGED_ACTION));
                      looper = new MyLooper();
                      state = STATE_READY;
                      paused = false;
                      waiting4WifiEnable = false;
                      disableWifiAfterScan = false;
                      debug("CELL LOCATION START");
                      requestUpdate();
               }
        }

        public void stop() {
               if (state > STATE_IDLE) {
                      context.unregisterReceiver(receiver);
                      debug("CELL LOCATION STOP");
                      looper = null;
                      state = STATE_IDLE;
                      if (disableWifiAfterScan) {
                             disableWifiAfterScan = false;
                             wifiManager.wifiManager().setWifiEnabled(false);
                      }
               }
        }

        public long timestamp() {
               return this.timestamp;
        }

        protected boolean isConnectedWithInternet() {
               ConnectivityManager conManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
               NetworkInfo networkInfo = conManager.getActiveNetworkInfo();
               if (networkInfo != null) {
                      return networkInfo.isAvailable();
               }
               return false;

        }

        private class MyLooper extends Handler {
               private float fCellScore;
               private JSONArray objCellTowersJson;

               public void handleMessage(Message paramMessage) {
                      if(CellLocationManager.this.looper != this)
                             return;
                      boolean flag = true;
                      switch (paramMessage.what) {
                      default:
                             break;
                      case MESSAGE_INITIALIZE:
                             this.objCellTowersJson = null;
                             this.fCellScore = 1.401298E-045F;
                      case MESSAGE_COLLECTING_CELL:
                             if (CellLocationManager.this.state != CellLocationManager.STATE_COLLECTING)
                                    break;
                             JSONArray objCellTowers = CellLocationManager.this.cellInfoManager.cellTowers();
                             float fCellScore = CellLocationManager.this.cellInfoManager.score();
                             if (objCellTowers != null) {
                                    float fCurrentCellScore = this.fCellScore;
                                    if (fCellScore > fCurrentCellScore) {
                                           this.objCellTowersJson = objCellTowers;
                                           this.fCellScore = fCellScore;
                                    }
                             }
                             this.sendEmptyMessageDelayed(MESSAGE_COLLECTING_CELL, 600L);
                             break;
                      case MESSAGE_COLLECTING_WIFI:
                             if (CellLocationManager.this.state != CellLocationManager.STATE_COLLECTING)
                                    break;
                             this.removeMessages(MESSAGE_COLLECTING_CELL);
                             this.removeMessages(MESSAGE_BEFORE_FINISH);
 //                          if (CellLocationManager.this.disableWifiAfterScan && CellLocationManager.this.wifiManager.wifiManager().setWifiEnabled(true))
 //                                 CellLocationManager.this.disableWifiAfterScan = false;
                             CellLocationManager.this.state = CellLocationManager.STATE_SENDING;
                             if (CellLocationManager.this.task != null)
                                    CellLocationManager.this.task.cancel(true);
                             int[] aryCell = null;
                             if (CellLocationManager.this.cellInfoManager.isGsm())
                                    aryCell = CellLocationManager.this.cellInfoManager.dumpCells();
                             int nBid = CellLocationManager.this.cellInfoManager.bid();
                             CellLocationManager.this.task = new CellLocationManager.Task(aryCell, nBid);
                             JSONArray[] aryJsonArray = new JSONArray[2];
                             aryJsonArray[0] = this.objCellTowersJson;
                             aryJsonArray[1] = CellLocationManager.this.wifiManager.wifiTowers();
                             if(this.objCellTowersJson != null)
                                    Log.i("CellTownerJSON", this.objCellTowersJson.toString());
                             if(aryJsonArray[1] != null)
                                    Log.i("WIFITownerJSON", aryJsonArray[1].toString());
                             CellLocationManager.this.debug("Post json");
                             CellLocationManager.this.task.execute(aryJsonArray);
                             break;
                      case MESSAGE_BEFORE_FINISH:
                             if (CellLocationManager.this.state != CellLocationManager.STATE_READY || CellLocationManager.this.paused)
                                    break;
                             // L7
                             if (CellLocationManager.this.disableWifiAfterScan && CellLocationManager.this.wifiManager.wifiManager().setWifiEnabled(false))
                                    CellLocationManager.this.disableWifiAfterScan = false;
                             if (!CellLocationManager.this.cellInfoManager.isGsm()) {
                                    // L9
                                    if (CellLocationManager.this.bid == CellLocationManager.this.cellInfoManager.bid()) {
                                           flag = true;
                                    } else {
                                           flag = false;
                                    }
                                    // L14
                                    if (flag) {
                                           requestUpdate();
                                    } else {
                                           this.sendEmptyMessageDelayed(10, CellLocationManager.CHECK_INTERVAL);
                                    }
                             } else {
                                    // L8
                                    if (CellLocationManager.this.aryGsmCells == null || CellLocationManager.this.aryGsmCells.length == 0) {
                                           // L10
                                           flag = true;
                                    } else {
                                           int[] aryCells = CellLocationManager.this.cellInfoManager.dumpCells();
                                           if (aryCells != null && aryCells.length != 0) {
                                                  // L13
                                                  int nFirstCellId = CellLocationManager.this.aryGsmCells[0];
                                                  if (nFirstCellId == aryCells[0]) {
                                                         // L16
                                                         int cellLength = CellLocationManager.this.aryGsmCells.length / 2;
                                                         List arraylist = new ArrayList(cellLength);
                                                         List arraylist1 = new ArrayList(aryCells.length / 2);
                                                         int nIndex = 0;
                                                         int nGSMCellLength = CellLocationManager.this.aryGsmCells.length;
                                                         while (nIndex < nGSMCellLength) {
                                                                // goto L18
                                                                arraylist.add(CellLocationManager.this.aryGsmCells[nIndex]);
                                                                nIndex += 2;
                                                         }
                                                         // goto L17
                                                         nIndex = 0;
                                                         while (nIndex < aryCells.length) {
                                                                // goto L20
                                                                arraylist1.add(aryCells[nIndex]);
                                                                nIndex += 2;
                                                         }
                                                         // goto L19
                                                         int nCounter = 0;
                                                         for(Iterator iterator = arraylist.iterator(); iterator.hasNext();) {
                                                                // goto L22
                                                                if (arraylist1.contains(iterator.next()))
                                                                       nCounter++;
                                                         }
                                                         // goto L21
                                                         int k4 = arraylist.size() - nCounter;
                                                         int l4 = arraylist1.size() - nCounter;

                                                         if (k4 + l4 > nCounter)
                                                                flag = true;
                                                         else
                                                                flag = false;
                                                         if (flag) {
                                                                StringBuilder stringbuilder = new StringBuilder(k4).append(" + ");
                                                                stringbuilder.append(l4).append(" > ");
                                                                stringbuilder.append(nCounter);
                                                                CellLocationManager.this.debug(stringbuilder.toString());
                                                         }
                                                         break;

                                                  } else {
                                                         // L15
                                                         flag = true;
                                                         CellLocationManager.this.debug("PRIMARY CELL CHANGED");
                                                         // goto L14
                                                         if (flag) {
                                                                requestUpdate();
                                                         } else {
                                                                this.sendEmptyMessageDelayed(MESSAGE_BEFORE_FINISH, CellLocationManager.CHECK_INTERVAL);
                                                         }
                                                  }
                                           } else {
                                                  // L12
                                                  flag = true;
                                                  // goto L14
                                                  if (flag) {
                                                         requestUpdate();
                                                  } else {
                                                         this.sendEmptyMessageDelayed(MESSAGE_BEFORE_FINISH,CellLocationManager.CHECK_INTERVAL);
                                                  }
                                           }

                                    }

                             }

                      }
               }
        }

        class Task extends UserTask {
               int accuracy;
               int bid;
               int[] cells;
               double lat;
               double lng;
               long time;

               public Task(int[] aryCell, int bid) {
                      this.time = System.currentTimeMillis();
                      this.cells = aryCell;
                      this.bid = bid;
               }

               public Void doInBackground(JSONArray[] paramArrayOfJSONArray) {
                      try {
                             JSONObject jsonObject = new JSONObject();
                             jsonObject.put("version", "1.1.0");
                             jsonObject.put("host", "maps.google.com");
                             jsonObject.put("address_language", "zh_CN");
                             jsonObject.put("request_address", true);
                             jsonObject.put("radio_type", "gsm");
                             jsonObject.put("carrier", "HTC");
                             JSONArray cellJson = paramArrayOfJSONArray[0];
                             jsonObject.put("cell_towers", cellJson);
                             JSONArray wifiJson = paramArrayOfJSONArray[1];
                             jsonObject.put("wifi_towers", wifiJson);
                             DefaultHttpClient localDefaultHttpClient = new DefaultHttpClient();
                             HttpPost localHttpPost = new HttpPost("http://www.google.com/loc/json");
                             String strJson = jsonObject.toString();
                             StringEntity objJsonEntity = new StringEntity(strJson);
                             localHttpPost.setEntity(objJsonEntity);
                             HttpResponse objResponse = localDefaultHttpClient.execute(localHttpPost);
                             int nStateCode = objResponse.getStatusLine().getStatusCode();
                             HttpEntity httpEntity = objResponse.getEntity();
                             byte[] arrayOfByte = null;
                             if (nStateCode / 100 == 2)
                                    arrayOfByte = EntityUtils.toByteArray(httpEntity);
                             httpEntity.consumeContent();
                             String strResponse = new String(arrayOfByte, "UTF-8");
                             jsonObject = new JSONObject(strResponse);
                             this.lat = jsonObject.getJSONObject("location").getDouble("latitude");
                             this.lng = jsonObject.getJSONObject("location").getDouble("longitude");
                             this.accuracy = jsonObject.getJSONObject("location").getInt("accuracy");;
                      } catch (Exception localException) {
                             return null;
                      }
                      return null;
               }

               public void onPostExecute(Void paramVoid) {
                      if (CellLocationManager.this.state != CellLocationManager.STATE_SENDING || CellLocationManager.this.task != this)
                             return;
                      if ((this.lat != 0.0D) && (this.lng != 0.0D)) {
                             CellLocationManager.this.timestamp = this.time;
                             CellLocationManager.this.latitude = this.lat;
                             CellLocationManager.this.longitude = this.lng;
                             CellLocationManager.this.accuracy = this.accuracy;
                             CellLocationManager.this.aryGsmCells = this.cells;
                             CellLocationManager.this.bid = this.bid;
                             StringBuilder sb = new StringBuilder("CELL LOCATION DONE: (");
                             sb.append(this.lat).append(",").append(this.lng).append(")");
                             CellLocationManager.this.debug(sb.toString());
                             CellLocationManager.this.state = STATE_READY;
                             CellLocationManager.this.looper.sendEmptyMessageDelayed(MESSAGE_BEFORE_FINISH, CellLocationManager.CHECK_INTERVAL);
                             CellLocationManager.this.onLocationChanged();
                      } else {
                             CellLocationManager.this.task = null;
                             CellLocationManager.this.state = CellLocationManager.STATE_READY;
                             CellLocationManager.this.looper.sendEmptyMessageDelayed(MESSAGE_BEFORE_FINISH, 5000L);
                      }
               }
        }

        private class CellLocationManagerBroadcastReceiver extends BroadcastReceiver {

               @Override
               public void onReceive(Context arg0, Intent intent) {
                      // access$0 state
                      // 1 debug
                      // access$2 loop
                      // 3 startScanTimestamp
                      // 4 disableWifiAfterScan
                      // 5 wifimanager
                      if (CellLocationManager.this.state != CellLocationManager.STATE_COLLECTING)
                             return;
                      String s = intent.getAction();
                      if (WifiManager.SCAN_RESULTS_AVAILABLE_ACTION.equals(s)) { // goto _L4; else goto _L3
                      // _L3:
                             CellLocationManager.this.debug("WIFI SCAN COMPLETE");
                             CellLocationManager.this.looper.removeMessages(MESSAGE_COLLECTING_WIFI);
                             long lInterval = System.currentTimeMillis() - CellLocationManager.this.startScanTimestamp;
                             if (lInterval > 4000L)
                                    CellLocationManager.this.looper.sendEmptyMessageDelayed(MESSAGE_COLLECTING_WIFI, 4000L);
                             else
                                    CellLocationManager.this.looper.sendEmptyMessage(MESSAGE_COLLECTING_WIFI);
                      } else {
                             // _L4:
                             if (!CellLocationManager.this.waiting4WifiEnable)
                                    return;
                             String s1 = intent.getAction();
                             if (!WifiManager.WIFI_STATE_CHANGED_ACTION.equals(s1))
                                    return;
                             int wifiState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 4);
                             // _L5:
                             if (wifiState == WifiManager.WIFI_STATE_ENABLING) {
                                    boolean flag2 = CellLocationManager.this.wifiManager.wifiManager().startScan();
                                    // _L8:
                                    CellLocationManager.this.disableWifiAfterScan = true;
                                    CellLocationManager.this.paused = false;
 //                                 int i = flag2 ? 1 : 0;
 //                                 int nDelay = i != 0 ? 8000 : 0;
 //                                 CellLocationManager.this.looper.sendEmptyMessageDelayed(MESSAGE_COLLECTING_WIFI, nDelay);
                                    CellLocationManager.this.debug("WIFI ENABLED");
                             }
                      }
               }
        }

 }

 调用方法：

        CellInfoManager cellManager = new CellInfoManager(this);
               WifiInfoManager wifiManager = new WifiInfoManager(this);
               CellLocationManager locationManager = new CellLocationManager(this, cellManager, wifiManager) {

                      @Override
                      public void onLocationChanged() {
                             txtAutoNaviInfo.setText(this.latitude() + "-" + this.longitude());
                             this.stop();

                      }
               };
               locationManager.start();
 如果还想同时使用GPS定位，其实也很简单，可以和FourSquare提供的BestLocationListener结合起来,将上面那段代码添加到BestLocationListener的register方法里：

  public void register(LocationManager locationManager, boolean gps, Context context) {
         if (DEBUG) Log.d(TAG, "Registering this location listener: " + this.toString());
         long updateMinTime = SLOW_LOCATION_UPDATE_MIN_TIME;
         long updateMinDistance = SLOW_LOCATION_UPDATE_MIN_DISTANCE;
         if (gps) {
             updateMinTime = LOCATION_UPDATE_MIN_TIME;
             updateMinDistance = LOCATION_UPDATE_MIN_DISTANCE;
         }
         List providers = locationManager.getProviders(true);
         int providersCount = providers.size();
         if (!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) && !locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)){
                setChanged();
                notifyObservers(null);
         }
         for (int i = 0; i < providersCount; i++) {
             String providerName = providers.get(i);
             if (locationManager.isProviderEnabled(providerName)) {
                 updateLocation(locationManager.getLastKnownLocation(providerName));
             }
             // Only register with GPS if we've explicitly allowed it.
             if (gps || !LocationManager.GPS_PROVIDER.equals(providerName)) {
                 locationManager.requestLocationUpdates(providerName, updateMinTime,
                         updateMinDistance, this);
             }

         }

         if(cellLocationManager == null) {
                CellInfoManager cellManager = new CellInfoManager(context);
                  WifiInfoManager wifiManager = new WifiInfoManager(context);
                  cellLocationManager = new CellLocationManager(context, cellManager, wifiManager) {
                         @Override
                         public void onLocationChanged() {
                                if ((latitude() == 0.0D) || (longitude() == 0.0D)) return;
                                Location result = new Location("CellLocationManager");
                                result.setLatitude(latitude());
                                result.setLongitude(longitude());
                                result.setAccuracy(accuracy());
                                onBestLocationChanged(result);
                                this.stop();
                         }
                  };
         }
         //cellLocationManager.stop();
         cellLocationManager.start();
 //        LocationController controller = LocationController.requestLocationUpdates("", updateMinTime,updateMinDistance, this, context);
 //        controller.requestCurrentLocation();
     }