problem on putting the value on parse.com

[Ashutosh Singh]

Hello All,

I am developing a android app using parse.com as backend.  I am facing a problem when i put my current location (which is calculated by using geocoder) on parse.com it is refreshing 4/5 times in 1 second.i want to add only last known location.if i calculate the diffrence between current location and last known location and check if(lastknownlocation !=current location && difference is 5.0000 or something ) and put the location on server. it is adding a row when last latlang and current latlang are same.kindly please help me i am stuck on this point over last 10 days.

Thanks in advance !!!

Here is my code snippet           -

ParseGeoPoint point = new ParseGeoPoint(latitude, longitude);

double earthRadius = 3958.75;

if (lastLatLong == null) {

lastLatLong = latLng;

}

double dLat = Math.toRadians(latitude - lastLatLong.latitude);

System.out.println("Current lat..."+latitude);

System.out.println("Previous lat " + lastLatLong.latitude);

double dLng = Math.toRadians(longitude - lastLatLong.longitude);

System.out.println("Current lngt..."+longitude);

System.out.println("Previous longt " + lastLatLong.longitude);

double a = Math.sin(dLat / 2) * Math.sin(dLat / 2)

+ Math.cos(Math.toRadians(lastLatLong.latitude))

* Math.cos(Math.toRadians(latitude)) * Math.sin(dLng / 2)

* Math.sin(dLng / 2);

double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));

double diff = earthRadius * c * 1609.00;

System.out.println("Diffrence is " + diff);

if (lastLatLong != latLng && diff >= 4.082382509737494) {

lastLatLong = latLng;

placeObject.put("location", point);

ParseUser currentUser = ParseUser.getCurrentUser();

placeObject.put("UserName", currentUser.getUsername());

ParseACL acl = new ParseACL();

acl.setPublicWriteAccess(true);

acl.setPublicReadAccess(true);

placeObject.setACL(acl);

placeObject.saveInBackground();

}