Android Service获取当前位置(GPS+基站)

转载自：http://www.cnblogs.com/LiaoHao/archive/2013/09/03/3298514.html

需求详情： 1)、Service中每隔1秒执行一次定位操作(GPS+基站) 2)、定位的结果实时显示在界面上(要求得到经度、纬度) 技术支持： 1)、获取经纬度 通过GPS+基站获取经纬度，先通过GPS来获取，如果为空改用基站进行获取–>GPS+基站(基站获取支持联通、电信、移动)。 2)、实时获取经纬度 为了达到实时获取经纬度，需在后台启动获取经纬度的Service，然后把经纬度数据通过广播发送出去，在需要的地方进行广播注册(比如在Activity中注册广播，显示在界面中)–>涉及到Service+BroadcastReceiver+Activity+Thread等知识点。

备注：本文注重实践，如有看不懂的，先去巩固下知识点，可以去看看我前面写的几篇文章。

1、CellInfo实体类–>基站信息

package com.ljq.activity; /** * 基站信息 *  * @author jiqinlin *  */public class CellInfo { /** 基站id，用来找到基站的位置 */private int cellId; /** 移动国家码，共3位，中国为460，即imsi前3位 */private String mobileCountryCode="460"; /** 移动网络码，共2位，在中国，移动的代码为00和02，联通的代码为01，电信的代码为03，即imsi第4~5位 */private String mobileNetworkCode="0"; /** 地区区域码 */private int locationAreaCode; /** 信号类型[选 gsm|cdma|wcdma] */private String radioType="";  public CellInfo() { }  public int getCellId() {  return cellId; }  public void setCellId(int cellId) {  this.cellId = cellId; }  public String getMobileCountryCode() {  return mobileCountryCode; }  public void setMobileCountryCode(String mobileCountryCode) {  this.mobileCountryCode = mobileCountryCode; }  public String getMobileNetworkCode() {  return mobileNetworkCode; }  public void setMobileNetworkCode(String mobileNetworkCode) {  this.mobileNetworkCode = mobileNetworkCode; }  public int getLocationAreaCode() {  return locationAreaCode; }  public void setLocationAreaCode(int locationAreaCode) {  this.locationAreaCode = locationAreaCode; }  public String getRadioType() {  return radioType; }  public void setRadioType(String radioType) {  this.radioType = radioType; } }

2、Gps类–>Gps封装类，用来获取经纬度

package com.ljq.activity; import android.content.Context;import android.location.Criteria;import android.location.Location;import android.location.LocationListener;import android.location.LocationManager;import android.os.Bundle; public class Gps{ private Location location = null; private LocationManager locationManager = null; private Context context = null;  /**  * 初始化   *   * @param ctx  */public Gps(Context ctx) {  context=ctx;  locationManager=(LocationManager)context.getSystemService(Context.LOCATION_SERVICE);  location = locationManager.getLastKnownLocation(getProvider());  locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 10, locationListener); }   // 获取Location Provider private String getProvider() {  // 构建位置查询条件  Criteria criteria = new Criteria();  // 查询精度：高  criteria.setAccuracy(Criteria.ACCURACY_FINE);  // 是否查询海拨：否  criteria.setAltitudeRequired(false);  // 是否查询方位角 : 否  criteria.setBearingRequired(false);  // 是否允许付费：是  criteria.setCostAllowed(true);  // 电量要求：低  criteria.setPowerRequirement(Criteria.POWER_LOW);  // 返回最合适的符合条件的provider，第2个参数为true说明 , 如果只有一个provider是有效的,则返回当前provider  return locationManager.getBestProvider(criteria, true); }  private LocationListener locationListener = new LocationListener() {  // 位置发生改变后调用  public void onLocationChanged(Location l) {   if(l!=null){    location=l;   }  }   // provider 被用户关闭后调用  public void onProviderDisabled(String provider) {   location=null;  }   // provider 被用户开启后调用  public void onProviderEnabled(String provider) {   Location l = locationManager.getLastKnownLocation(provider);   if(l!=null){    location=l;   }       }   // provider 状态变化时调用  public void onStatusChanged(String provider, int status, Bundle extras) {  }  };   public Location getLocation(){  return location; }   public void closeLocation(){  if(locationManager!=null){   if(locationListener!=null){    locationManager.removeUpdates(locationListener);    locationListener=null;   }   locationManager=null;  } }  }

3、GpsService服务类

package com.ljq.activity; import java.util.ArrayList; import android.app.Service;import android.content.Intent;import android.location.Location;import android.os.IBinder;import android.util.Log; public class GpsService extends Service { ArrayList<CellInfo> cellIds = null; private Gps gps=null; private boolean threadDisable=false;  private final static String TAG=GpsService.class.getSimpleName();  @Override public void onCreate() {  super.onCreate();     gps=new Gps(GpsService.this);  cellIds=UtilTool.init(GpsService.this);     new Thread(new Runnable(){   @Override   public void run() {    while (!threadDisable) {      try {      Thread.sleep(1000);     } catch (InterruptedException e) {      e.printStackTrace();     }           if(gps!=null){ //当结束服务时gps为空      //获取经纬度      Location location=gps.getLocation();      //如果gps无法获取经纬度，改用基站定位获取      if(location==null){       Log.v(TAG, "gps location null");        //2.根据基站信息获取经纬度       try {        location = UtilTool.callGear(GpsService.this, cellIds);       } catch (Exception e) {        location=null;        e.printStackTrace();       }       if(location==null){        Log.v(TAG, "cell location null");        }      }             //发送广播      Intent intent=new Intent();      intent.putExtra("lat", location==null?"":location.getLatitude()+"");       intent.putExtra("lon", location==null?"":location.getLongitude()+"");       intent.setAction("com.ljq.activity.GpsService");       sendBroadcast(intent);     }     }   }  }).start();    }  @Override public void onDestroy() {  threadDisable=true;  if(cellIds!=null&&cellIds.size()>0){   cellIds=null;  }  if(gps!=null){   gps.closeLocation();   gps=null;  }  super.onDestroy(); }  @Override public IBinder onBind(Intent arg0) {  return null; }  }

4、GpsActivity–>在界面上实时显示经纬度数据

package com.ljq.activity; import android.app.Activity;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.location.Location;import android.location.LocationManager;import android.os.Bundle;import android.util.Log;import android.widget.EditText;import android.widget.Toast; public class GpsActivity extends Activity { private Double homeLat=26.0673834d; //宿舍纬度 private Double homeLon=119.3119936d; //宿舍经度 private EditText editText = null; private MyReceiver receiver=null;  private final static String TAG=GpsActivity.class.getSimpleName();  @Override public void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.main);     editText=(EditText)findViewById(R.id.editText);     //判断GPS是否可用  Log.i(TAG, UtilTool.isGpsEnabled((LocationManager)getSystemService(Context.LOCATION_SERVICE))+"");  if(!UtilTool.isGpsEnabled((LocationManager)getSystemService(Context.LOCATION_SERVICE))){   Toast.makeText(this, "GSP当前已禁用，请在您的系统设置屏幕启动。", Toast.LENGTH_LONG).show();   Intent callGPSSettingIntent = new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);     startActivity(callGPSSettingIntent);            return;  }        //启动服务  startService(new Intent(this, GpsService.class));     //注册广播  receiver=new MyReceiver();  IntentFilter filter=new IntentFilter();  filter.addAction("com.ljq.activity.GpsService");  registerReceiver(receiver, filter); }   //获取广播数据 private class MyReceiver extends BroadcastReceiver{  @Override  public void onReceive(Context context, Intent intent) {   Bundle bundle=intent.getExtras();         String lon=bundle.getString("lon");       String lat=bundle.getString("lat");    if(lon!=null&&!"".equals(lon)&&lat!=null&&!"".equals(lat)){    double distance=getDistance(Double.parseDouble(lat),       Double.parseDouble(lon), homeLat, homeLon);    editText.setText("目前经纬度\n经度："+lon+"\n纬度："+lat+"\n离宿舍距离："+java.lang.Math.abs(distance));   }else{    editText.setText("目前经纬度\n经度："+lon+"\n纬度："+lat);   }  } }   @Override protected void onDestroy() {  //注销服务  unregisterReceiver(receiver);  //结束服务，如果想让服务一直运行就注销此句  stopService(new Intent(this, GpsService.class));  super.onDestroy(); }   /**  * 把经纬度换算成距离  *   * @param lat1 开始纬度  * @param lon1 开始经度  * @param lat2 结束纬度  * @param lon2 结束经度  * @return*/private double getDistance(double lat1, double lon1, double lat2, double lon2) {  float[] results = new float[1];  Location.distanceBetween(lat1, lon1, lat2, lon2, results);  return results[0]; }  }

5、UtilTool–>工具类

package com.ljq.activity; import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.io.UnsupportedEncodingException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.ProtocolException;import java.net.URL;import java.util.ArrayList;import java.util.Calendar;import java.util.List;import java.util.Locale; import org.apache.http.client.ClientProtocolException;import org.json.JSONException;import org.json.JSONObject; import android.content.Context;import android.location.Location;import android.location.LocationManager;import android.telephony.NeighboringCellInfo;import android.telephony.TelephonyManager;import android.telephony.cdma.CdmaCellLocation;import android.telephony.gsm.GsmCellLocation;import android.util.Log;import android.widget.Toast; public class UtilTool { public static boolean isGpsEnabled(LocationManager locationManager) {  boolean isOpenGPS = locationManager.isProviderEnabled(android.location.LocationManager.GPS_PROVIDER);  boolean isOpenNetwork = locationManager.isProviderEnabled(android.location.LocationManager.NETWORK_PROVIDER);  if (isOpenGPS || isOpenNetwork) {   return true;  }  return false; }       /**     * 根据基站信息获取经纬度      *      * 原理向http://www.google.com/loc/json发送http的post请求，根据google返回的结果获取经纬度     *      * @param cellIds     * @return     * @throws Exception      */public static Location callGear(Context ctx, ArrayList<CellInfo> cellIds) throws Exception {     String result="";     JSONObject data=null;     if (cellIds == null||cellIds.size()==0) {      UtilTool.alert(ctx, "cell request param null");      return null;     };        try {   result = UtilTool.getResponseResult(ctx, "http://www.google.com/loc/json", cellIds);       if(result.length() <= 1)    return null;   data = new JSONObject(result);   data = (JSONObject) data.get("location");    Location loc = new 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(UtilTool.getUTCTime());   return loc;  } catch (JSONException e) {   return null;  } catch (UnsupportedEncodingException e) {   e.printStackTrace();  } catch (ClientProtocolException e) {   e.printStackTrace();  } catch (IOException e) {   e.printStackTrace();  }  return null; }     /**     * 接收Google返回的数据格式     *   * 出参：{"location":{"latitude":26.0673834,"longitude":119.3119936,  *       "address":{"country":"中国","country_code":"CN","region":"福建省","city":"福州市",  *       "street":"五一中路","street_number":"128号"},"accuracy":935.0},  *       "access_token":"2:xiU8YrSifFHUAvRJ:aj9k70VJMRWo_9_G"}  * 请求路径：http://maps.google.cn/maps/geo?key=abcdefg&q=26.0673834,119.3119936     *      * @param cellIds     * @return     * @throws UnsupportedEncodingException     * @throws MalformedURLException     * @throws IOException     * @throws ProtocolException     * @throws Exception     */public static String getResponseResult(Context ctx,String path, ArrayList<CellInfo> cellInfos)   throws UnsupportedEncodingException, MalformedURLException,   IOException, ProtocolException, Exception {  String result="";  Log.i(ctx.getApplicationContext().getClass().getSimpleName(),     "in param: "+getRequestParams(cellInfos));  InputStream inStream=UtilTool.sendPostRequest(path,     getRequestParams(cellInfos), "UTF-8");  if(inStream!=null){   byte[] datas=UtilTool.readInputStream(inStream);   if(datas!=null&&datas.length>0){    result=new String(datas, "UTF-8");    //Log.i(ctx.getClass().getSimpleName(), "receive result:"+result);//服务器返回的结果信息    Log.i(ctx.getApplicationContext().getClass().getSimpleName(),         "google cell receive data result:"+result);   }else{    Log.i(ctx.getApplicationContext().getClass().getSimpleName(),       "google cell receive data null");   }  }else{   Log.i(ctx.getApplicationContext().getClass().getSimpleName(),        "google cell receive inStream null");  }  return result; }        /**  * 拼装json请求参数，拼装基站信息  *   * 入参：{'version': '1.1.0','host': 'maps.google.com','home_mobile_country_code': 460,  *       'home_mobile_network_code': 14136,'radio_type': 'cdma','request_address': true,  *       'address_language': 'zh_CN','cell_towers':[{'cell_id': '12835','location_area_code': 6,  *       'mobile_country_code': 460,'mobile_network_code': 14136,'age': 0}]}  * @param cellInfos  * @return*/public static String getRequestParams(List<CellInfo> cellInfos){  StringBuffer sb=new StringBuffer("");  sb.append("{");  if(cellInfos!=null&&cellInfos.size()>0){   sb.append("'version': '1.1.0',"); //google api 版本[必]   sb.append("'host': 'maps.google.com',"); //服务器域名[必]   sb.append("'home_mobile_country_code': "+cellInfos.get(0).getMobileCountryCode()+","); //移动用户所属国家代号[选 中国460]   sb.append("'home_mobile_network_code': "+cellInfos.get(0).getMobileNetworkCode()+","); //移动系统号码[默认0]   sb.append("'radio_type': '"+cellInfos.get(0).getRadioType()+"',"); //信号类型[选 gsm|cdma|wcdma]   sb.append("'request_address': true,"); //是否返回数据[必]   sb.append("'address_language': 'zh_CN',"); //反馈数据语言[选 中国 zh_CN]   sb.append("'cell_towers':["); //移动基站参数对象[必]   for(CellInfo cellInfo:cellInfos){    sb.append("{");    sb.append("'cell_id': '"+cellInfo.getCellId()+"',"); //基站ID[必]    sb.append("'location_area_code': "+cellInfo.getLocationAreaCode()+","); //地区区域码[必]    sb.append("'mobile_country_code': "+cellInfo.getMobileCountryCode()+",");     sb.append("'mobile_network_code': "+cellInfo.getMobileNetworkCode()+",");    sb.append("'age': 0"); //使用好久的数据库[选 默认0表示使用最新的数据库]    sb.append("},");   }   sb.deleteCharAt(sb.length()-1);   sb.append("]");  }  sb.append("}");  return sb.toString(); }      /**  * 获取UTC时间  *   * UTC + 时区差 ＝ 本地时间(北京为东八区)  *   * @return*/public static long getUTCTime() {      //取得本地时间        Calendar cal = Calendar.getInstance(Locale.CHINA);        //取得时间偏移量        int zoneOffset = cal.get(java.util.Calendar.ZONE_OFFSET);         //取得夏令时差        int dstOffset = cal.get(java.util.Calendar.DST_OFFSET);         //从本地时间里扣除这些差量，即可以取得UTC时间        cal.add(java.util.Calendar.MILLISECOND, -(zoneOffset + dstOffset));         return cal.getTimeInMillis();    } /**  * 初始化，记得放在onCreate()方法里初始化，获取基站信息  *   * @return*/public static ArrayList<CellInfo> init(Context ctx) {  ArrayList<CellInfo> cellInfos = new ArrayList<CellInfo>();     TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);  //网络制式  int type = tm.getNetworkType();      /**     * 获取SIM卡的IMSI码     * SIM卡唯一标识：IMSI 国际移动用户识别码（IMSI：International Mobile Subscriber Identification Number）是区别移动用户的标志，     * 储存在SIM卡中，可用于区别移动用户的有效信息。IMSI由MCC、MNC、MSIN组成，其中MCC为移动国家号码，由3位数字组成，     * 唯一地识别移动客户所属的国家，我国为460；MNC为网络id，由2位数字组成，     * 用于识别移动客户所归属的移动网络，中国移动为00，中国联通为01,中国电信为03；MSIN为移动客户识别码，采用等长11位数字构成。     * 唯一地识别国内GSM移动通信网中移动客户。所以要区分是移动还是联通，只需取得SIM卡中的MNC字段即可   */  String imsi = tm.getSubscriberId();   alert(ctx, "imsi: "+imsi);  //为了区分移动、联通还是电信，推荐使用imsi来判断(万不得己的情况下用getNetworkType()判断，比如imsi为空时)  if(imsi!=null&&!"".equals(imsi)){    alert(ctx, "imsi");   if (imsi.startsWith("46000") || imsi.startsWith("46002")) {// 因为移动网络编号46000下的IMSI已经用完，所以虚拟了一个46002编号，134/159号段使用了此编号    // 中国移动    mobile(cellInfos, tm);   } else if (imsi.startsWith("46001")) {    // 中国联通    union(cellInfos, tm);   } else if (imsi.startsWith("46003")) {    // 中国电信    cdma(cellInfos, tm);   }     }else{   alert(ctx, "type");   // 在中国，联通的3G为UMTS或HSDPA，电信的3G为EVDO   // 在中国，移动的2G是EGDE，联通的2G为GPRS，电信的2G为CDMA   // String OperatorName = tm.getNetworkOperatorName();        //中国电信    if (type == TelephonyManager.NETWORK_TYPE_EVDO_A      || type == TelephonyManager.NETWORK_TYPE_EVDO_0     || type == TelephonyManager.NETWORK_TYPE_CDMA      || type ==TelephonyManager.NETWORK_TYPE_1xRTT){    cdma(cellInfos, tm);   }   //移动(EDGE（2.75G）是GPRS（2.5G）的升级版，速度比GPRS要快。目前移动基本在国内升级普及EDGE，联通则在大城市部署EDGE。)   else if(type == TelephonyManager.NETWORK_TYPE_EDGE     || type == TelephonyManager.NETWORK_TYPE_GPRS ){    mobile(cellInfos, tm);   }   //联通(EDGE（2.75G）是GPRS（2.5G）的升级版，速度比GPRS要快。目前移动基本在国内升级普及EDGE，联通则在大城市部署EDGE。)   else if(type == TelephonyManager.NETWORK_TYPE_GPRS     ||type == TelephonyManager.NETWORK_TYPE_EDGE     ||type == TelephonyManager.NETWORK_TYPE_UMTS     ||type == TelephonyManager.NETWORK_TYPE_HSDPA){    union(cellInfos, tm);   }  }     return cellInfos; }   /**  * 电信  *   * @param cellInfos  * @param tm  */private static void cdma(ArrayList<CellInfo> cellInfos, TelephonyManager tm) {  CdmaCellLocation location = (CdmaCellLocation) tm.getCellLocation();  CellInfo info = new CellInfo();  info.setCellId(location.getBaseStationId());  info.setLocationAreaCode(location.getNetworkId());  info.setMobileNetworkCode(String.valueOf(location.getSystemId()));  info.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));  info.setRadioType("cdma");  cellInfos.add(info);     //前面获取到的都是单个基站的信息，接下来再获取周围邻近基站信息以辅助通过基站定位的精准性  // 获得邻近基站信息  List<NeighboringCellInfo> list = tm.getNeighboringCellInfo();  int size = list.size();  for (int i = 0; i < size; i++) {   CellInfo cell = new CellInfo();   cell.setCellId(list.get(i).getCid());   cell.setLocationAreaCode(location.getNetworkId());   cell.setMobileNetworkCode(String.valueOf(location.getSystemId()));   cell.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));   cell.setRadioType("cdma");   cellInfos.add(cell);  } }   /**  * 移动  *   * @param cellInfos  * @param tm  */private static void mobile(ArrayList<CellInfo> cellInfos,   TelephonyManager tm) {  GsmCellLocation location = (GsmCellLocation)tm.getCellLocation();    CellInfo info = new CellInfo();  info.setCellId(location.getCid());  info.setLocationAreaCode(location.getLac());  info.setMobileNetworkCode(tm.getNetworkOperator().substring(3, 5));  info.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));  info.setRadioType("gsm");  cellInfos.add(info);     //前面获取到的都是单个基站的信息，接下来再获取周围邻近基站信息以辅助通过基站定位的精准性  // 获得邻近基站信息  List<NeighboringCellInfo> list = tm.getNeighboringCellInfo();  int size = list.size();  for (int i = 0; i < size; i++) {   CellInfo cell = new CellInfo();   cell.setCellId(list.get(i).getCid());   cell.setLocationAreaCode(location.getLac());   cell.setMobileNetworkCode(tm.getNetworkOperator().substring(3, 5));   cell.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));   cell.setRadioType("gsm");   cellInfos.add(cell);  } }   /**  *  联通  *    * @param cellInfos  * @param tm  */private static void union(ArrayList<CellInfo> cellInfos, TelephonyManager tm) {  GsmCellLocation location = (GsmCellLocation)tm.getCellLocation();    CellInfo info = new CellInfo();  //经过测试，获取联通数据以下两行必须去掉，否则会出现错误，错误类型为JSON Parsing Error  //info.setMobileNetworkCode(tm.getNetworkOperator().substring(3, 5));    //info.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));  info.setCellId(location.getCid());  info.setLocationAreaCode(location.getLac());  info.setMobileNetworkCode("");  info.setMobileCountryCode("");  info.setRadioType("gsm");  cellInfos.add(info);     //前面获取到的都是单个基站的信息，接下来再获取周围邻近基站信息以辅助通过基站定位的精准性  // 获得邻近基站信息  List<NeighboringCellInfo> list = tm.getNeighboringCellInfo();  int size = list.size();  for (int i = 0; i < size; i++) {   CellInfo cell = new CellInfo();   cell.setCellId(list.get(i).getCid());   cell.setLocationAreaCode(location.getLac());   cell.setMobileNetworkCode("");   cell.setMobileCountryCode("");   cell.setRadioType("gsm");   cellInfos.add(cell);  } } /**  * 提示  *   * @param ctx  * @param msg  */public static void alert(Context ctx,String msg){  Toast.makeText(ctx, msg, Toast.LENGTH_LONG).show(); }   /**  * 发送post请求，返回输入流  *   * @param path 访问路径  * @param params json数据格式  * @param encoding 编码  * @return  * @throws UnsupportedEncodingException  * @throws MalformedURLException  * @throws IOException  * @throws ProtocolException  */public static InputStream sendPostRequest(String path, String params, String encoding) throws UnsupportedEncodingException, MalformedURLException, IOException, ProtocolException {  byte[] data = params.getBytes(encoding);  URL url = new URL(path);  HttpURLConnection conn = (HttpURLConnection)url.openConnection();  conn.setRequestMethod("POST");  conn.setDoOutput(true);  //application/x-javascript text/xml->xml数据 application/x-javascript->json对象 application/x-www-form-urlencoded->表单数据  conn.setRequestProperty("Content-Type", "application/x-javascript; charset="+ encoding);  conn.setRequestProperty("Content-Length", String.valueOf(data.length));  conn.setConnectTimeout(5 * 1000);  OutputStream outStream = conn.getOutputStream();  outStream.write(data);  outStream.flush();  outStream.close();  if(conn.getResponseCode()==200)   return conn.getInputStream();  return null; }   /**  * 发送get请求  *   * @param path 请求路径  * @return  * @throws Exception  */public static String sendGetRequest(String path) throws Exception {  URL url = new URL(path);  HttpURLConnection conn = (HttpURLConnection) url.openConnection();  conn.setConnectTimeout(5 * 1000);  conn.setRequestMethod("GET");  InputStream inStream = conn.getInputStream();  byte[] data = readInputStream(inStream);  String result = new String(data, "UTF-8");  return result; }   /**  * 从输入流中读取数据  * @param inStream  * @return  * @throws Exception  */public static byte[] readInputStream(InputStream inStream) throws Exception{  ByteArrayOutputStream outStream = new ByteArrayOutputStream();  byte[] buffer = new byte[1024];  int len = 0;  while( (len = inStream.read(buffer)) !=-1 ){   outStream.write(buffer, 0, len);  }  byte[] data = outStream.toByteArray();//网页的二进制数据  outStream.close();  inStream.close();  return data; }   }

6、main.xml–>布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"><EditText android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:cursorVisible="false"        android:editable="false"        android:id="@+id/editText"/></LinearLayout>

7、清单文件

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"package="com.ljq.activity" android:versionCode="1" android:versionName="1.0"><application android:icon="@drawable/icon"  android:label="@string/app_name"><activity android:name=".GpsActivity"   android:label="@string/app_name"><intent-filter><action android:name="android.intent.action.MAIN" /><category     android:name="android.intent.category.LAUNCHER" /></intent-filter></activity><service android:label="GPS服务" android:name=".GpsService" /></application><uses-sdk android:minSdkVersion="7" /><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /><uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /><uses-permission android:name="android.permission.INTERNET" /><uses-permission android:name="android.permission.READ_PHONE_STATE" /><uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /></manifest>

效果如下：