0
的GPS記錄器值到sqlite的這是我的GPSLoggerservice代碼：獲取的Android
package com.mygps.android;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.channels.FileLock;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import com.mygps.android.AppSettings;
import com.mygps.android.AppLog;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Environment;
import android.os.IBinder;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
public class GPSLoggerService extends Service implements LocationListener {
// this is a hack and need to be changed, here the offset is the length of
// the tag XML "</Document></kml",
// we minus this offset from the end of the file and write the next
// Placemark entry.
private static final int KML_INSERT_OFFSET = 17;
private static final int gpsMinTime = 500;
private static final int gpsMinDistance = 0;
private static final int TIMER_DELAY = 1000;
private static final int GEOCODER_MAX_RESULTS = 5;
TextView abc;
TextView abcd;
private LocationManager manager = null;
private double latitude = 0.0;
private double longitude = 0.0;
private double altitude = 0.0;
private Timer monitoringTimer = null;
public GPSLoggerService() {
AppLog.logString("GPSLoggerService.GPSLoggerService().");
}
@Override
public IBinder onBind(Intent arg0) {
AppLog.logString("GPSLoggerService.onBind().");
return null;
}
@Override
public void onCreate() {
AppLog.logString("GPSLoggerService.onCreate().");
super.onCreate();
}
@Override
public void onStart(Intent intent, int startId) {
AppLog.logString("GPSLoggerService.onStart().");
startLoggingService();
startMonitoringTimer();
super.onStart(intent, startId);
}
public int onStartCommand(Intent intent, int flags, int startId) {
AppLog.logString("GPSLoggerService.onStartCommand().");
startLoggingService();
startMonitoringTimer();
return Service.START_STICKY;
}
@Override
public void onLocationChanged(Location location) {
AppLog.logString("GPSLoggerService.onLocationChanged().");
latitude = location.getLatitude();
longitude = location.getLongitude();
altitude = location.getAltitude();
}
@Override
public void onProviderDisabled(String provider) {
AppLog.logString("GPSLoggerService.onProviderDisabled().");
}
@Override
public void onProviderEnabled(String provider) {
AppLog.logString("GPSLoggerService.onProviderEnabled().");
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
AppLog.logString("GPSLoggerService.onStatusChanged().");
}
private void startLoggingService() {
if (manager == null) {
manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
}
final Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(false);
criteria.setBearingRequired(false);
criteria.setCostAllowed(true);
criteria.setPowerRequirement(Criteria.POWER_LOW);
final String bestProvider = manager.getBestProvider(criteria, true);
if (bestProvider != null && bestProvider.length() > 0) {
manager.requestLocationUpdates(bestProvider, gpsMinTime,
gpsMinDistance, this);
} else {
final List<String> providers = manager.getProviders(true);
for (final String provider : providers) {
manager.requestLocationUpdates(provider, gpsMinTime,
gpsMinDistance, this);
}
}
}
private void stopLoggingService() {
stopSelf();
}
private void startMonitoringTimer() {
monitoringTimer = new Timer();
monitoringTimer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
if (longitude != 0.0 && latitude != 0.0) {
monitoringTimer.cancel();
monitoringTimer = null;
manager.removeUpdates(GPSLoggerService.this);
saveCoordinates(latitude, longitude, altitude,
getLocationName(latitude, longitude));
stopLoggingService();
}
}
}, GPSLoggerService.TIMER_DELAY, GPSLoggerService.TIMER_DELAY);
}
private String getLocationName(double latitude, double longiture) {
String name = "";
Geocoder geocoder = new Geocoder(this);
try {
List<Address> address = geocoder.getFromLocation(latitude,
longiture, GPSLoggerService.GEOCODER_MAX_RESULTS);
name = address.get(0).toString();
} catch (IOException e) {
e.printStackTrace();
}
return name;
}
private void saveCoordinates(double latitude, double longitude,
double altitude, String name) {
File folder = new File(Environment.getExternalStorageDirectory(),
"GPSLogger");
boolean isNew = false;
if (!folder.exists()) {
folder.mkdirs();
isNew = true;
}
try {
File kmlFile = new File(folder.getPath(),
AppSettings.getLogFileName(this));
if (!kmlFile.exists()) {
kmlFile.createNewFile();
isNew = true;
}
if (isNew) {
FileOutputStream initialWriter = new FileOutputStream(kmlFile,
true);
String xml = "<?xml version=\"1.0\"?>"
+ "<kml xmlns=\"http://www.opengis.net/kml/2.2\">"
+ "<Document>" + "</Document>" + "</kml>";
initialWriter.write(xml.getBytes());
initialWriter.flush();
initialWriter.close();
}
SimpleDateFormat sdf = new SimpleDateFormat(
"yyyy-MM-dd'T'HH:mm:ssZ");
String dateString = sdf.format(new Date());
String placemark = "<Placemark>" + "<name>" + name + "</name>"
+ "<description>"
+ "Created by GPSLogger sample application"
+ "</description>" + "<TimeStamp>" + "<when>" + dateString
+ "</when>" + "</TimeStamp>" + "<Point>" + "<coordinates>"
+ String.valueOf(longitude) + ","
+ String.valueOf(latitude) + "," + String.valueOf(altitude)
+ "</coordinates>" + "</Point>" + "</Placemark>"
+ "</Document>" + "</kml>";
String a = String.valueOf(longitude);
String b = String.valueOf(latitude);
// abc = (TextView)findViewById(R.id.lat);
// abcd = (TextView)findViewById(R.id.longi);
//
// abc.setText(a);
// abcd.setText(b);
// Toast.makeText(this, "a=" + a + "b=" + b , Toast.LENGTH_LONG).show();
AppLog.logString("abcdef" + a);
//Log.i("Longi", a);
RandomAccessFile fileAccess = new RandomAccessFile(kmlFile, "rw");
FileLock lock = fileAccess.getChannel().lock();
fileAccess.seek((kmlFile.length() - GPSLoggerService.KML_INSERT_OFFSET));
fileAccess.write(placemark.getBytes());
lock.release();
fileAccess.close();
} catch (IOException e) {
e.printStackTrace();
}
}
private TextView findViewById(int lat) {
// TODO Auto-generated method stub
return null;
}
}
輸出我DDMS數據/數據/ com.xyz.abc得到的是：
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<map>
<int name="loggingInterval" value="15" />
<string name="logFile">GPSLog.2011-12-28 15:38:05.kml</string>
<boolean name="isServiceRunning" value="true" />
</map>
如何我可以讀取該值並獲取數據
你是什麼意思「這個值」？和哪些「數據」？ – 2011-12-28 10:23:55
有問題嗎？如果是，則提供logcat輸出。 – 2011-12-28 10:24:16