Obtem a localização do gps

GPS.java

package com.xxnoobmanxx.util;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.location.LocationProvider;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;

/**
 * Created by carucce on 30/11/2015.
 */
public class GPS {

    private static GPS instance;
    private Context mContext;
    private LocationManager mLocationManager;
    private Location mLocation = null;
    private boolean started = false;

    public static GPS getInstance(Context context) {

        if (instance == null) {
            instance = new GPS(context);
        }

        return instance;

    }

    /**
     *
     */
    public void stop() {

        if(!started) return;

        try{

            started = false;
            mLocationManager.removeUpdates(
                mLocationListener
            );

        }catch (SecurityException e){
            e.printStackTrace();
        }
    }

    /**
     *
     * @param context
     */
    private GPS(Context context){
        mContext = context;
    }

    /**
     *
     * @return
     */
    public Location getLocation(){
        return mLocation;
    }

    /**
     *
     * @return
     */
    public boolean hasPermission(){
        return ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
        || ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED;
    }

    /**
     *
     */
    public void start(){

        if(started) return;

        try {

            mLocationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
            LocationProvider provider =  mLocationManager.getProvider(LocationManager.GPS_PROVIDER);

            if(provider != null) {
                started = true;
                mLocation = mLocationManager.getLastKnownLocation(provider.getName());
                mLocationManager.requestLocationUpdates(provider.getName(), 1000, 1, mLocationListener);
            }

        } catch (SecurityException e){
            e.printStackTrace();
        }

    }

    /**
     *
     */
    private LocationListener mLocationListener = new LocationListener() {
        @Override
        public void onLocationChanged(Location location) {
            mLocation = location;
        }

        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {

        }

        @Override
        public void onProviderEnabled(String provider) {

        }

        @Override
        public void onProviderDisabled(String provider) {

        }
    };

}