使用gmap for iPhone中的纬度 - 经度计算两个地方之间的距离

Question

  

可能重复：
  GPS coordinates in degrees to calculate distances

如何使用gmap for iPhone中的纬度 - 经度计算两个地方之间的距离？ 使用gmap for iPhone中的纬度 - 经度计算两个地方之间的距离

Answer 1

您必须使用核心位置框架。所以不要忘记添加＆amp;导入核心位置框架。

目标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];

夫特

import CoreLocation

let locA = CLLocation(latitude: lat1, longitude: long1)

let locB = CLLocation(latitude: lat2, longitude: long2)

let distance = locA.distance(from: locB)

Answer 2

如果您有location参数，请创建2个CLLocations并使用[location1 distanceFromLocation:location2]方法。