Android 后台记录GPS轨迹并转为80参数service

          我们知道Android里都是用LocationManager来管理定位相关的操作， LocationListener来进行位置变化时候的监听，获取结果有三种条件下的经纬度坐标。

          于是在写后台service时候主要是将每次监听到的经纬度记录下来，最后在转变为80的坐标。

           核心代码为：

service为:

public class PatrolService extends Service implements      ICoordinaters<Coordinates> {   private PatrolStartGPS gps = null;   private final static String TAG = PatrolService.class.getSimpleName();   @Override   public void onCreate() {      super.onCreate();      gps = new PatrolStartGPS(this, this);   }   @Override   public void onDestroy() {      if (gps != null) {         gps.closeLocation();         gps.close();         gps = null;      }      super.onDestroy();   }   @Override   public IBinder onBind(Intent arg0) {      return null;   }   @Override   public void coordinaterUpdate(ArrayList<Coordinates> list) {      // TODO Auto-generated method stub      // 发送广播      Intent intent = new Intent();      intent.putExtra("saveFlag", "netWork");      intent.putExtra("saveGps", list);      intent.setAction("com.diit.patrolservicedemo.PatrolService");      sendBroadcast(intent);   }   @Override   public void coordinaterLocalStorage(ArrayList<Coordinates> list) {      // TODO Auto-generated method stub      // 发送广播      Intent intent = new Intent();      intent.putExtra("saveFlag", "local");      intent.putExtra("saveGps", list);      intent.setAction("com.diit.patrolservicedemo.PatrolService");      sendBroadcast(intent);   }

监听GPS变化轨迹为：

public class PatrolStartGPS {   private String TAG = PatrolStartGPS.class.getName();   public ArrayList<Coordinates> coordinatesList;   public ICoordinaters<Coordinates> mICoordinaters;   public PatrolStartGPS mPatrolThread = null;   public LocationManager locationManager;   public SaveSdcardGps mSaveSdcardGps;   private Context context;   public PatrolStartGPS(Context context,         ICoordinaters<Coordinates> mICoordinaters) {      this.context = context;      mSaveSdcardGps = SaveSdcardGps.getSaveSdcardGps();      this.mICoordinaters = mICoordinaters;      coordinatesList = new ArrayList<Coordinates>();      try {         getLocation();      } catch (Exception e) {         // TODO Auto-generated catch block         mSaveSdcardGps.write(e.getMessage());      }   }   // 获取gps 信息   public void getLocation() throws Exception {      locationManager = (LocationManager) context            .getSystemService(Context.LOCATION_SERVICE);      String bestProvider = locationManager.getBestProvider(getCriteria(),            true);      // 获取位置信息      // 如果不设置查询要求，getLastKnownLocation方法传人的参数为LocationManager.GPS_PROVIDER      Location location = locationManager.getLastKnownLocation(bestProvider);      addCoordinates(location);      // 设置每2秒获取一次GPS的定位信息      locationManager.addGpsStatusListener(listener);      locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,            8000, 8, locationListener);   }   private LocationListener locationListener = new LocationListener() {      /**       * 位置信息变化时触发       */      public void onLocationChanged(Location location) {         addCoordinates(location);      }      /**       * GPS状态变化时触发       */      public void onStatusChanged(String provider, int status, Bundle extras) {         switch (status) {         // GPS状态为可见时         case LocationProvider.AVAILABLE:            Log.i(TAG, "当前GPS状态为可见状态");            break;         // GPS状态为服务区外时         case LocationProvider.OUT_OF_SERVICE:            Log.i(TAG, "当前GPS状态为服务区外状态");            break;         // GPS状态为暂停服务时         case LocationProvider.TEMPORARILY_UNAVAILABLE:            Log.i(TAG, "当前GPS状态为暂停服务状态");            break;         }      }      /**       * GPS开启时触发       */      public void onProviderEnabled(String provider) {         Location location = locationManager.getLastKnownLocation(provider);         addCoordinates(location);      }      /**       * GPS禁用时触发       */      public void onProviderDisabled(String provider) {         addCoordinates(null);      }   };   // 状态监听   GpsStatus.Listener listener = new GpsStatus.Listener() {      public void onGpsStatusChanged(int event) {         switch (event) {         // 第一次定位         case GpsStatus.GPS_EVENT_FIRST_FIX:            Log.i(TAG, "第一次定位");            break;         // 卫星状态改变         case GpsStatus.GPS_EVENT_SATELLITE_STATUS:            Log.i(TAG, "卫星状态改变");            break;         // 定位启动         case GpsStatus.GPS_EVENT_STARTED:            Log.i(TAG, "定位启动");            break;         // 定位结束         case GpsStatus.GPS_EVENT_STOPPED:            Log.i(TAG, "定位结束");            break;         }      };   };   /**    * 返回查询条件    *     * @return    */   private Criteria getCriteria() {      Criteria criteria = new Criteria();      // 设置定位精确度 Criteria.ACCURACY_COARSE比较粗略，Criteria.ACCURACY_FINE则比较精细      criteria.setAccuracy(Criteria.ACCURACY_FINE);      // 设置是否要求速度      criteria.setSpeedRequired(false);      // 设置是否允许运营商收费      criteria.setCostAllowed(false);      // 设置是否需要方位信息      criteria.setBearingRequired(false);      // 设置是否需要海拔信息      criteria.setAltitudeRequired(false);      // 设置对电源的需求      criteria.setPowerRequirement(Criteria.POWER_LOW);      return criteria;   }   // 讲GPS数据放入集合中   public void addCoordinates(Location mLocation) {      if (null != mLocation) {         mSaveSdcardGps.write("Longitude:" + mLocation.getLongitude()               + " , Latitude: " + mLocation.getLatitude() + ";");         coordinatesList.add(new Coordinates(mLocation.getLongitude(),               mLocation.getLatitude()));         run();      } else {      }   }   public void run() {      // TODO Auto-generated method stub      // 当前有网络的进行数据传输      if (NetWorkUtils.isNetworkAvailable(context)) {         mICoordinaters.coordinaterUpdate(coordinatesList);      } else {         // 当前没有网络进行本地保存         mICoordinaters.coordinaterLocalStorage(coordinatesList);      }   }   /**    * 关闭GPS保存操作    */   public void close() {      mSaveSdcardGps.close();   }   /**    * 清楚GPS    */   public void closeLocation() {      if (locationManager != null) {         if (locationListener != null) {            locationManager.removeUpdates(locationListener);            locationListener = null;         }         locationManager = null;      }   }

保存坐标点（这里用的是保存到个txt里）

public class SaveSdcardGps {   public static SaveSdcardGps mSaveSdcardGps = null;   private FileOutputStream stream = null;   public static SaveSdcardGps getSaveSdcardGps() {      if (null == mSaveSdcardGps) {         mSaveSdcardGps = new SaveSdcardGps();      }      return mSaveSdcardGps;   }   private SaveSdcardGps() {      writeFileToSD("开始写入GPS坐标文件！");   }   public void writeFileToSD(String gpsStr) {      String sdStatus = Environment.getExternalStorageState();      if (!sdStatus.equals(Environment.MEDIA_MOUNTED)) {         Log.d("TestFile", "SD card is not avaiable/writeable right now.");         return;      }      try {         String pathName = Environment.getExternalStorageDirectory()+"/ydzfjc/";         String fileName = "file.txt";         File path = new File(pathName);         File file = new File(pathName + fileName);         if (!path.exists()) {            path.mkdir();         }         if (!file.exists()) {            file.createNewFile();         }         stream = new FileOutputStream(file);         byte[] buf = gpsStr.getBytes();         stream.write(buf);         stream.write("\n".getBytes());         stream.flush();      } catch (Exception e) {         e.printStackTrace();      }   }   public void write(String writes) {      try {         if (stream != null) {            byte[] buf = writes.getBytes();            stream.write(buf);            stream.flush();         }      } catch (IOException e) {         // TODO Auto-generated catch block         e.printStackTrace();      }   }   public void close() {      try {         stream.close();      } catch (IOException e) {         // TODO Auto-generated catch block         e.printStackTrace();      }   }}

启动服务和广播的方法：

new Thread(new Runnable() {    @Override    public void run() {        // TODO Auto-generated method stub        Looper.prepare();        // PatrolThread mPatrolThread = new PatrolThread(        // WebServicePlugin.this);        try {            ContextUtil.getContext()                    .startService(new Intent(ContextUtil.getContext(), PatrolService.class));        }catch (Exception e){            e.printStackTrace();        }        // 注册广播        MyReceiver receiver = new MyReceiver();        IntentFilter filter = new IntentFilter();        filter.addAction("com.diit.patrolservicedemo.PatrolService");        ContextUtil.getContext().registerReceiver(receiver, filter);    }}).start();

// 获取广播数据private class MyReceiver extends BroadcastReceiver {    @SuppressWarnings("unchecked")    @Override    public void onReceive(Context context, Intent intent) {        Bundle bundle = intent.getExtras();        ArrayList<Coordinates> list = (ArrayList<Coordinates>) bundle.getSerializable("saveGps");        String saveFlag = intent.getStringExtra("saveFlag");        if (saveFlag.equals("netWork")) {            coordinaterUpdate(list);        } else if (saveFlag.equals("local")) {            coordinaterLocalStorage(list);        }    }}

最后附上demo代码地址：

http://download.csdn.net/detail/bit_kaki/9774055