Android Open Source - welcome-android My Location

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License

The source code is released under:

Copyright (c) 2014 FeedHenry Ltd, All Rights Reserved Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software")...

Java Source Code

package com.feedhenry.android.utilities;
/* w ww  .  j a va 2 s . co  m*/
import java.util.Timer;
import java.util.TimerTask;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;

public class MyLocation {

    Timer timer1;
    LocationManager lm;
    LocationResult locationResult;
    boolean gps_enabled=false;
    boolean network_enabled=false;

    public boolean getLocation(Context context, LocationResult result) {
        
      // LocationResult callback class to pass location value from MyLocation to location fragment.
        locationResult=result;
        if(lm==null)
            lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

        // Exceptions will be thrown if provider is not permitted.
        try{
            gps_enabled=lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
        } catch(Exception ex){
            Log.i("FEEDHENRY", "Failed in GPS");
        }
        try{
            network_enabled=lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
        } catch(Exception ex){
            Log.i("FEEDHENRY", "Failed in NETWORK");
        }

        // Don't start listeners if no provider is enabled
        if(!gps_enabled && !network_enabled)
            return false;

        if(gps_enabled)
            lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListenerGps);
        if(network_enabled)
            lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListenerNetwork);
        timer1=new Timer();
        timer1.schedule(new GetLastLocation(), 10000);
        return true;
    }

    LocationListener locationListenerGps = new LocationListener() {
        public void onLocationChanged(Location location) {
            timer1.cancel();
            locationResult.gotLocation(location);
            lm.removeUpdates(this);
            lm.removeUpdates(locationListenerNetwork);
        }
        public void onProviderDisabled(String provider) {
            Log.i("FEEDHENRY", "Diasabled");
        }
        public void onProviderEnabled(String provider) {}
        public void onStatusChanged(String provider, int status, Bundle extras) {}
    };

    LocationListener locationListenerNetwork = new LocationListener() {
        public void onLocationChanged(Location location) {
            timer1.cancel();
            locationResult.gotLocation(location);
            lm.removeUpdates(this);
            lm.removeUpdates(locationListenerGps);
        }
        public void onProviderDisabled(String provider) {}
        public void onProviderEnabled(String provider) {}
        public void onStatusChanged(String provider, int status, Bundle extras) {}
    };

    class GetLastLocation extends TimerTask {
        @Override
        public void run() {
            lm.removeUpdates(locationListenerGps);
            lm.removeUpdates(locationListenerNetwork);

            Location net_loc=null, gps_loc=null;
            if(gps_enabled)
                gps_loc=lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
            if(network_enabled)
                net_loc=lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

            //if there are both values use the latest one
            if(gps_loc!=null && net_loc!=null){
                if(gps_loc.getTime()>net_loc.getTime())
                    locationResult.gotLocation(gps_loc);
                else
                    locationResult.gotLocation(net_loc);
                return;
            }

            if(gps_loc!=null){
                locationResult.gotLocation(gps_loc);
                return;
            }
            if(net_loc!=null){
                locationResult.gotLocation(net_loc);
                return;
            }
            locationResult.gotLocation(null);
        }
    }

    public static abstract class LocationResult{
        public abstract void gotLocation(Location location);
    }
}

Java Source Code List

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