GPSTracker

gistfile1.txt

package com.samsoft.cbc.keepsafe;

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;

public class GPSTracker extends Service implements LocationListener{
private Context context;
private boolean isGPSEnabled=false;
private boolean isNetworkEnabled=false;
private boolean canGetLocation=false;
private Location location;
double latitude;
double longitude;
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES=10;	//meters
private static final long MIN_TIME_BW_UPDATES=1000*60*1;	//milliseconds
protected LocationManager locationManager;

	public GPSTracker(Context context) {
		this.context=context;
		getLocation();
		
	}
	public Location getLocation(){
		try{
			locationManager=(LocationManager)context.getSystemService(LOCATION_SERVICE);
			isGPSEnabled=locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
			isNetworkEnabled=locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
			if(!isGPSEnabled && !isNetworkEnabled){
				
			}
			else{
				this.canGetLocation=true;
				if(isNetworkEnabled){
					locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 
							MIN_TIME_BW_UPDATES,MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
					
					
					if(locationManager!=null){
						
							location=locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
							if(location!=null){
								latitude=location.getLatitude();
								longitude=location.getLongitude();
							}
						
					}
					
				}

				if(isGPSEnabled){
					if(location==null){
						locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 
								MIN_TIME_BW_UPDATES,
								MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
						if(locationManager!=null){
							location=locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
							if(location!=null){
								latitude=location.getLatitude();
								longitude=location.getLongitude();
								
							}
						}
					}
				}
			}
		}
		catch(Exception exception){
			exception.printStackTrace();
		}
		return location;
	}
	

	public void stopUsingGPS(){
		if(locationManager!=null){
			locationManager.removeUpdates(GPSTracker.this);
		}
	}
	public double getLatitude(){
		if(location!=null){
			latitude=location.getLatitude();
		}
		return latitude;
	}
	public double getLongitude(){
		if(location!=null){
			longitude=location.getLongitude();
		}
		return longitude;
	}
	public boolean canGetLocation(){
		return this.canGetLocation;
	}
	public double getSpeed(){
		return location.getSpeed();
	}
	public void showSettings(){

		AlertDialog.Builder alert=new AlertDialog.Builder(context);
		alert.setTitle("GPS is setting");
		alert.setMessage("GPS is not enabled, d you want to go to settings menu");
		alert.setPositiveButton("Settings", new DialogInterface.OnClickListener(){			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Intent intent=new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
				context.startActivity(intent);
				
			}
		});

		alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				dialog.cancel();
			}
		});
		alert.show();
			
		
	}
	@Override
	public void onLocationChanged(Location location) {
		// TODO Auto-generated method stub
		latitude=location.getLatitude();
		longitude=location.getLongitude();
		
	}

	@Override
	public void onProviderDisabled(String provider) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void onProviderEnabled(String provider) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void onStatusChanged(String provider, int status, Bundle extras) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public IBinder onBind(Intent intent) {
		// TODO Auto-generated method stub
		return null;
	}

}