转自一个网上项目，由于是例子打包下载，出处不详。例子中自我写入注释。
Activity类：
package com.maxtech.common; import com.maxtech.common.gps.GpsTask; import com.maxtech.common.gps.GpsTaskCallBack; import com.maxtech.common.gps.GpsTask.GpsData; import com.maxtech.common.gps.IAddressTask.MLocation; import android.app.Activity; import android.app.AlertDialog; import android.app.ProgressDialog; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.TextView; public class GpsActivity extends Activity implements OnClickListener { private TextView gps_tip = null; // 声明AlertDialog private AlertDialog dialog = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // 布局主要就是三个按钮与一个Textview gps_tip = (TextView) findViewById(R.id.gps_tip); findViewById(R.id.do_gps).setOnClickListener(GpsActivity. this); findViewById(R.id.do_apn).setOnClickListener(GpsActivity. this); findViewById(R.id.do_wifi).setOnClickListener(GpsActivity. this); // 这个ProgressDialog是用于读取数据时显示 dialog = new ProgressDialog(GpsActivity. this); dialog.setTitle("请稍等..."); dialog.setMessage("正在定位..."); } // 各个按钮的工作 @SuppressWarnings("unchecked") @Override public void onClick(View v) { gps_tip.setText(""); switch (v.getId()) { case R.id.do_apn: // 进行apn的定位 do_apn(); break; case R.id.do_gps: // 进行gps定位 GpsTask gpstask = new GpsTask(GpsActivity. this, new GpsTaskCallBack() { @Override public void gpsConnectedTimeOut() { gps_tip.setText("获取GPS超时了"); } @Override public void gpsConnected(GpsData gpsdata) { do_gps(gpsdata); } }, 30 * 1000); gpstask.execute(); break; // 进行wifi定位 case R.id.do_wifi: do_wifi(); break; } } private void do_apn() { // 异步 new AsyncTask<Void, Void, String>() { @Override protected String doInBackground(Void... params) { MLocation location = null; try { // 具体操作 location = new AddressTask(GpsActivity. this, AddressTask.DO_APN).doApnPost(); } catch (Exception e) { e.printStackTrace(); } if(location == null) return null; return location.toString(); } // 异步操作前执行dialog显示 @Override protected void onPreExecute() { dialog.show(); super.onPreExecute(); } // 异步操作后显示相关信息并且关闭dialog @Override protected void onPostExecute(String result) { if(result == null){ gps_tip.setText("基站定位失败了..."); } else { gps_tip.setText(result); } dialog.dismiss(); super.onPostExecute(result); } }.execute(); } private void do_gps( final GpsData gpsdata) { new AsyncTask<Void, Void, String>() { @Override protected String doInBackground(Void... params) { MLocation location = null; try { Log.i("do_gpspost", "经纬度" + gpsdata.getLatitude() + "----" + gpsdata.getLongitude()); // gps定位具体操作 location = new AddressTask(GpsActivity. this, AddressTask.DO_GPS).doGpsPost(gpsdata.getLatitude(), gpsdata.getLongitude()); } catch (Exception e) { e.printStackTrace(); } if(location == null) return "GPS信息获取错误"; return location.toString(); } @Override protected void onPreExecute() { dialog.show(); super.onPreExecute(); } @Override protected void onPostExecute(String result) { gps_tip.setText(result); dialog.dismiss(); super.onPostExecute(result); } }.execute(); } private void do_wifi() { new AsyncTask<Void, Void, String>() { @Override protected String doInBackground(Void... params) { MLocation location = null; try { location = new AddressTask(GpsActivity. this, AddressTask.DO_WIFI).doWifiPost(); } catch (Exception e) { e.printStackTrace(); } if(location == null) return null; return location.toString(); } @Override protected void onPreExecute() { dialog.show(); super.onPreExecute(); } @Override protected void onPostExecute(String result) { if(result != null){ gps_tip.setText(result); } else { gps_tip.setText("WIFI定位失败了..."); } dialog.dismiss(); super.onPostExecute(result); } }.execute(); }
}
GPS接口：
package com.maxtech.common.gps; import com.maxtech.common.gps.GpsTask.GpsData; public interface GpsTaskCallBack { public void gpsConnected(GpsData gpsdata); public void gpsConnectedTimeOut(); }
GpsTask gps的具体实现类：
package com.maxtech.common.gps; import java.util.Timer; import java.util.TimerTask; import android.app.Activity; import android.content.Context; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.AsyncTask; import android.os.Bundle; import android.os.Handler; import android.os.Message; @SuppressWarnings("rawtypes") public class GpsTask extends AsyncTask { private GpsTaskCallBack callBk = null; private Activity context = null; private LocationManager locationManager = null; private LocationListener locationListener = null; private Location location = null; private boolean TIME_OUT = false; private boolean DATA_CONNTECTED = false; private long TIME_DURATION = 5000; private GpsHandler handler = null; private class GpsHandler extends Handler { @Override public void handleMessage(Message msg) { super.handleMessage(msg); if(callBk == null) return; switch (msg.what) { case 0: callBk.gpsConnected((GpsData)msg.obj); break; case 1: callBk.gpsConnectedTimeOut(); break; } } } public GpsTask(Activity context, GpsTaskCallBack callBk) { this.callBk = callBk; this.context = context; gpsInit(); } public GpsTask(Activity context, GpsTaskCallBack callBk, long time_out) { this.callBk = callBk; this.context = context; this.TIME_DURATION = time_out; gpsInit(); } private void gpsInit() { locationManager = (LocationManager) context .getSystemService(Context.LOCATION_SERVICE); handler = new GpsHandler(); if(locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) { } else { // GPSû�д� TIME_OUT = true; } locationListener = new LocationListener() { @Override public void onStatusChanged(String provider, int status, Bundle extras) { } @Override public void onProviderEnabled(String provider) { } @Override public void onProviderDisabled(String provider) { } // 位置改变才会调用 @Override public void onLocationChanged(Location l) { DATA_CONNTECTED = true; Message msg = handler.obtainMessage(); msg.what = 0; msg.obj = transData(l); handler.sendMessage(msg); } }; locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 100, locationListener); } @Override protected Object doInBackground(Object... params) { while (!TIME_OUT && !DATA_CONNTECTED) { location = locationManager .getLastKnownLocation(LocationManager.GPS_PROVIDER); if (location != null && callBk != null) { // �����һ����� Message msg = handler.obtainMessage(); msg.what = 0; msg.obj = transData(location); handler.sendMessage(msg); break; } } return null; } @Override protected void onPreExecute() { super.onPreExecute(); // Timer是自动另外开的一条线程 Timer timer = new Timer(); timer.schedule( new TimerTask() { @Override public void run() { TIME_OUT = true; } }, TIME_DURATION); } @SuppressWarnings("unchecked") @Override protected void onPostExecute(Object result) { locationManager.removeUpdates(locationListener); // ��ȡ��ʱ if (TIME_OUT && callBk != null){ handler.sendEmptyMessage(1); } super.onPostExecute(result); } private GpsData transData(Location location) { GpsData gpsData = new GpsData(); gpsData.setAccuracy(location.getAccuracy()); gpsData.setAltitude(location.getAltitude()); gpsData.setBearing(location.getBearing()); gpsData.setLatitude(location.getLatitude()); gpsData.setLongitude(location.getLongitude()); gpsData.setSpeed(location.getSpeed()); gpsData.setTime(location.getTime()); return gpsData; } public static class GpsData { private double latitude = 0; private double longitude = 0; private float accuracy = 0; private double altitude = 0; private float bearing = 0; private float speed = 0; private long time = 0; public double getLatitude() { return latitude; } public void setLatitude( double latitude) { this.latitude = latitude; } public double getLongitude() { return longitude; } public void setLongitude( double longitude) { this.longitude = longitude; } public float getAccuracy() { return accuracy; } public void setAccuracy( float accuracy) { this.accuracy = accuracy; } public double getAltitude() { return altitude; } public void setAltitude( double altitude) { this.altitude = altitude; } public float getBearing() { return bearing; } public void setBearing( float bearing) { this.bearing = bearing; } public float getSpeed() { return speed; } public void setSpeed( float speed) { this.speed = speed; } public long getTime() { return time; } public void setTime( long time) { this.time = time; } }
}
AddressTask 使用post访问的参数设置
package com.maxtech.common; import org.apache.http.HttpHost; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost; import org.apache.http.conn.params.ConnRouteParams; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.params.HttpConnectionParams; import org.json.JSONObject; import android.app.Activity; import android.net.Proxy; import com.maxtech.common.gps.IAddressTask; public class AddressTask extends IAddressTask { public static final int DO_APN = 0; public static final int DO_WIFI = 1; public static final int DO_GPS = 2; private int postType = -1; public AddressTask(Activity context, int postType) { super(context); this.postType = postType; } @Override public HttpResponse execute(JSONObject params) throws Exception { HttpClient httpClient = new DefaultHttpClient(); HttpConnectionParams.setConnectionTimeout(httpClient.getParams(), 20 * 1000); HttpConnectionParams.setSoTimeout(httpClient.getParams(), 20 * 1000); // 访问json HttpPost post = new HttpPost("http://74.125.71.147/loc/json"); // 设置代理 if (postType == DO_APN) { String proxyHost = Proxy.getDefaultHost(); if(proxyHost != null) { HttpHost proxy = new HttpHost(proxyHost, 80); httpClient.getParams().setParameter( ConnRouteParams.DEFAULT_PROXY, proxy); } } // 请求一系列的参数 StringEntity se = new StringEntity(params.toString()); post.setEntity(se); HttpResponse response = httpClient.execute(post); return response; }
}
IAddressTask apn、wifi、gps具体实现类：
package com.maxtech.common.gps; import java.io.BufferedReader; import java.io.InputStreamReader; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.json.JSONArray; import org.json.JSONObject; import android.app.Activity; import android.content.Context; import android.net.wifi.WifiManager; import android.telephony.TelephonyManager; import android.telephony.gsm.GsmCellLocation; public abstract class IAddressTask { protected Activity context; public IAddressTask(Activity context) { this.context = context; } public abstract HttpResponse execute(JSONObject params) throws Exception; public MLocation doWifiPost() throws Exception { return transResponse(execute(doWifi())); } public MLocation doApnPost() throws Exception { return transResponse(execute(doApn())); } public MLocation doGpsPost( double lat, double lng) throws Exception { return transResponse(execute(doGps(lat, lng))); } private MLocation transResponse(HttpResponse response) { MLocation location = null; if (response.getStatusLine().getStatusCode() == 200) { location = new MLocation(); HttpEntity entity = response.getEntity(); BufferedReader br; try { br = new BufferedReader( new InputStreamReader( entity.getContent())); StringBuffer sb = new StringBuffer(); String result = br.readLine(); while (result != null) { sb.append(result); result = br.readLine(); } JSONObject json = new JSONObject(sb.toString()); JSONObject lca = json.getJSONObject("location"); location.Access_token = json.getString("access_token"); if (lca != null) { if(lca.has("accuracy")) location.Accuracy = lca.getString("accuracy"); if(lca.has("longitude")) location.Longitude = lca.getDouble("longitude"); if(lca.has("latitude")) location.Latitude = lca.getDouble("latitude"); if(lca.has("address")) { JSONObject address = lca.getJSONObject("address"); if (address != null) { if(address.has("region")) location.Region = address.getString("region"); if(address.has("street_number")) location.Street_number = address .getString("street_number"); if(address.has("country_code")) location.Country_code = address .getString("country_code"); if(address.has("street")) location.Street = address.getString("street"); if(address.has("city")) location.City = address.getString("city"); if(address.has("country")) location.Country = address.getString("country"); } } } } catch (Exception e) { e.printStackTrace(); location = null; } } return location; } private JSONObject doGps( double lat, double lng) throws Exception { 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); JSONObject data = new JSONObject(); data.put("latitude", lat); data.put("longitude", lng); holder.put("location", data); return holder; } private JSONObject doApn() throws Exception { 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); // 获得GSM相关信息 TelephonyManager tm = (TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE); 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)); // 请求参数 JSONArray array = new JSONArray(); JSONObject data = new JSONObject(); data.put("cell_id", cid); data.put("location_area_code", lac); data.put("mobile_country_code", mcc); data.put("mobile_network_code", mnc); array.put(data); holder.put("cell_towers", array); return holder; } private JSONObject doWifi() throws Exception { 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); // 获得wifi相关信息 WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); if(wifiManager.getConnectionInfo().getBSSID() == null) { throw new RuntimeException("bssid is null"); } JSONArray array = new JSONArray(); JSONObject data = new JSONObject(); data.put("mac_address", wifiManager.getConnectionInfo().getBSSID()); data.put("signal_strength", 8); data.put("age", 0); array.put(data); holder.put("wifi_towers", array); return holder; } public static class MLocation { public String Access_token; public double Latitude; public double Longitude; public String Accuracy; public String Region; public String Street_number; public String Country_code; public String Street; public String City; public String Country; @Override public String toString() { StringBuffer buffer = new StringBuffer(); buffer.append("Access_token:" + Access_token + "\n"); buffer.append("Region:" + Region + "\n"); buffer.append("Accuracy:" + Accuracy + "\n"); buffer.append("Latitude:" + Latitude + "\n"); buffer.append("Longitude:" + Longitude + "\n"); buffer.append("Country_code:" + Country_code + "\n"); buffer.append("Country:" + Country + "\n"); buffer.append("City:" + City + "\n"); buffer.append("Street:" + Street + "\n"); buffer.append("Street_number:" + Street_number + "\n"); return buffer.toString(); } }
}