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- import android.app.AlertDialog;
- import android.app.Service;
- import android.content.Context;
- import android.content.DialogInterface;
- import android.content.Intent;
- import android.location.Location;
- import android.location.LocationListener;
- import android.location.LocationManager;
- import android.os.Bundle;
- import android.os.IBinder;
- import android.provider.Settings;
- import android.util.Log;
- public class GPSTracker extends Service implements LocationListener {
- private final Context mContext;
- // flag for GPS status
- boolean isGPSEnabled = false;
- // flag for network status
- boolean isNetworkEnabled = false;
- // flag for GPS status
- boolean canGetLocation = false;
- Location location; // location
- double latitude; // latitude
- double longitude; // longitude
- // The minimum distance to change Updates in meters
- private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
- // The minimum time between updates in milliseconds
- private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
- // Declaring a Location Manager
- protected LocationManager locationManager;
- public GPSTracker(Context context) {
- this.mContext = context;
- getLocation();
- }
- public Location getLocation() {
- try {
- locationManager = (LocationManager) mContext
- .getSystemService(LOCATION_SERVICE);
- // getting GPS status
- isGPSEnabled = locationManager
- .isProviderEnabled(LocationManager.GPS_PROVIDER);
- // getting network status
- isNetworkEnabled = locationManager
- .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
- if (!isGPSEnabled && !isNetworkEnabled) {
- // no network provider is enabled
- } else {
- this.canGetLocation = true;
- // First get location from Network Provider
- if (isNetworkEnabled) {
- locationManager.requestLocationUpdates(
- LocationManager.NETWORK_PROVIDER,
- MIN_TIME_BW_UPDATES,
- MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
- Log.d("Network", "Network");
- if (locationManager != null) {
- location = locationManager
- .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
- if (location != null) {
- latitude = location.getLatitude();
- longitude = location.getLongitude();
- }
- }
- }
- // if GPS Enabled get lat/long using GPS Services
- if (isGPSEnabled) {
- if (location == null) {
- locationManager.requestLocationUpdates(
- LocationManager.GPS_PROVIDER,
- MIN_TIME_BW_UPDATES,
- MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
- Log.d("GPS Enabled", "GPS Enabled");
- if (locationManager != null) {
- location = locationManager
- .getLastKnownLocation(LocationManager.GPS_PROVIDER);
- if (location != null) {
- latitude = location.getLatitude();
- longitude = location.getLongitude();
- }
- }
- }
- }
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- return location;
- }
- /**
- * Stop using GPS listener
- * Calling this function will stop using GPS in your app
- */
- public void stopUsingGPS() {
- if (locationManager != null) {
- locationManager.removeUpdates(GPSTracker.this);
- }
- }
- /**
- * Function to get latitude
- */
- public double getLatitude() {
- if (location != null) {
- latitude = location.getLatitude();
- }
- // return latitude
- return latitude;
- }
- /**
- * Function to get longitude
- */
- public double getLongitude() {
- if (location != null) {
- longitude = location.getLongitude();
- }
- // return longitude
- return longitude;
- }
- /**
- * Function to check GPS/wifi enabled
- *
- * @return boolean
- */
- public boolean canGetLocation() {
- return this.canGetLocation;
- }
- public boolean GPSActive() {
- if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
- return true;
- } else {
- return false;
- }
- }
- /**
- * Function to show settings alert dialog
- * On pressing Settings button will lauch Settings Options
- */
- public void showSettingsAlert() {
- AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
- alertDialog.setCancelable(false);
- // Setting Dialog Title
- alertDialog.setTitle("GPS is settings");
- // Setting Dialog Message
- alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
- // On pressing Settings button
- alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
- public void onClick(DialogInterface dialog, int which) {
- Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
- mContext.startActivity(intent);
- }
- });
- // on pressing cancel button
- alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
- public void onClick(DialogInterface dialog, int which) {
- dialog.cancel();
- System.exit(0);
- }
- });
- // Showing Alert Message
- alertDialog.show();
- }
- @Override
- public void onLocationChanged(Location location) {
- }
- @Override
- public void onProviderDisabled(String provider) {
- }
- @Override
- public void onProviderEnabled(String provider) {
- }
- @Override
- public void onStatusChanged(String provider, int status, Bundle extras) {
- }
- @Override
- public IBinder onBind(Intent arg0) {
- return null;
- }
- }
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