Question

i am getting different Gps coordinates in same location why its happening. But i need to change gps coordinates only moves after 10 meters . How can i do that.

Here is my code.

  private static final long MINIMUM_TIME_BETWEEN_UPDATES = 1000; 
            private  static final float MIN_GEOGRAPHIC_POOLING_DISTANCE = (float)10.0;


 double myLat_Values;
        double myLog_Vaues;


locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
 locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, MINIMUM_TIME_BETWEEN_UPDATES, MIN_GEOGRAPHIC_POOLING_DISTANCE, new MyLocationListener());


private class MyLocationListener implements LocationListener {

        @Override
        public void onLocationChanged(Location location) {
            longitude_str = String.valueOf(location.getLongitude());
            latitude_str = String.valueOf(location.getLatitude());

             Double longitude_number = Double.valueOf(longitude_str);
                 DecimalFormat dec = new DecimalFormat("#.000000");
                longitude_message = dec.format(longitude_number);

             Double latitude_number = Double.valueOf(latitude_str);
             DecimalFormat decim = new DecimalFormat("#.000000");
                latitude_message = decim.format(latitude_number);

                try
                {
                    myLat_Values = Double.valueOf(latitude_message);  
                    myLog_Vaues = Double.valueOf(longitude_message);
                }
                catch(NullPointerException ex)
                {
                    myLat_Values = 0;
                    myLog_Vaues = 0;
                }

     System.out.println("GPS Values Clockout:"+myLat_Values+"-"+myLog_Vaues);

        }       

    public void onProviderDisabled(String s) {}
        @Override
        public void onProviderEnabled(String provider) {}
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {}      
    }

also i used these into manifestfile :

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" /> 
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

I used this link

please anybody give a suggestion how to solve my problem.

Thank you in advanced.

Answer 1

When you use NETWORK_PROVIDER ,it returns GPS co-ordinates based on the Network Service Provider you are using. But when you are using GPS_PROVIDER it returns GPS co-ordinates based on the satelites.

For Accuracy Criteria, add following code,

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_HIGH);  
locationManager.getBestProvider(criteria, true);

• ACCURACY_HIGH less than 100 meters
• ACCURACY_MEDIUM between 100 – 500 meters
• ACCURACY_LOW greater than 500 meters

Also, you need to declare following GPS Permission in AndroidManifest.xml

<uses-permission android:name="android.permission.ACCESS_GPS"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>