I want to obtain the coordinates of the method onLocationChanged can compare if the distance to the previous one is greater than 2 meters, and so not register it in database.
I want to obtain the coordinates of the method onLocationChanged can compare if the distance to the previous one is greater than 2 meters, and so not register it in database.
It's very easy to do and you do not have to calculate anything, the Android Location class includes a method that helps you calculate the distance between two points. link
The process would be such that:
/ ** Location A ** /
Location locationA = new Location ("point A");
locationA.setLatitude (latA);
locationA.setLongitude (lngA);
/ ** Location B ** /
Location locationB = new Location ("point B");
locationB.setLatitude (latB);
locationB.setLongitude (lngB);
/ ** Distance between the two objects Location ** /
float distance = locationA.distanceTo (locationB);
Greetings
(In English link )
The way to solve it is with this function
private double getDistance(double fromLat , double fromLong, double toLat, double toLong) {
double d2r = Math.PI / 180;
double dLong = (toLong - fromLong) * d2r;
double dLat = (toLat - fromLat) * d2r;
double a = Math.pow(Math.sin(dLat / 2.0), 2) + Math.cos(fromLat * d2r)
* Math.cos(toLat * d2r) * Math.pow(Math.sin(dLong / 2.0), 2);
double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
double d = 6367000 * c;
return Math.round(d);
}
Receives 4 parameters latitude and longitude of the first position and latitude and longitude of the second position.
The method returns the distance in meters between the points.