Calculate distance between two place using latitude-longitude in gmap for iPhone [duplicate]

Question

Possible Duplicate:
GPS coordinates in degrees to calculate distances

How to Calculate distance between two place using latitude-longitude in gmap for iPhone? Calculate distance between two place using latitude-longitude in gmap for iPhone

Answer 1

You have to use Core Location Framework. So don't forget to Add & import Core Location Framework.

Objective-C

 #import <CoreLocation/CoreLocation.h>   CLLocation *locA = [[CLLocation alloc] initWithLatitude:lat1 longitude:long1];   CLLocation *locB = [[CLLocation alloc] initWithLatitude:lat2 longitude:long2];   CLLocationDistance distance = [locA distanceFromLocation:locB];   //distance in Meters   //1 meter == 100 centimeter   //1 meter == 3.280 feet   //1 square meter == 10.76 square feet    [locA release];   [locB release]; 

Swift

import CoreLocation  let locA = CLLocation(latitude: lat1, longitude: long1)  let locB = CLLocation(latitude: lat2, longitude: long2)  let distance = locA.distance(from: locB) 

Answer 2

if you have the location parameter, create 2 CLLocations and use [location1 distanceFromLocation:location2] method.